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1
Kolouchová, Hana. "Vliv stavebních úprav na cenu nemovitosti typu rodinný dům v lokalitě Hrotovice a okolí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232779.
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The topic of my diploma thesis is to compare the differences of real estate property prices before and after reconstruction with the real price of the conversion. It focuses on finding out whether the recontruction increases the value of the real estate property. The theoretical part describes the terminology being used in my diploma thesis. I also describe in more detailes price estimated family houses and their localities. The practical part contains price calculations of the family houses before and after reconstruction. As the valuation methods are used cost method in accordance with the applicable valuation regulations and method of direct comparison. In the conclusion there is a comparison between the prices before and after the reconstruction.
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Vitálišová, Kristína. "Vliv rekonstrukce rodinného domu v závislosti na lokalitě." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401073.
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The main aim of Diploma thesis is to evaluate the family house before and after reconstruction in three different locations graded by population. Three selected methods are used for the valuation, namely: the cost method according to the valuation regulation, the comparative method according to the valuation regulation, and the method of direct comparison. The cost method takes into account the design of the family house in both states, the land is valued by direct comparison. Key indexes are taken into account in the comparative method according to the valuation rule. In the direct comparison method, we work with a database of single-family houses in a range of locations.
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Drcmánková, Hana. "Srovnání cen rodinného domu v různých částech města Brna v letech 2015 a 2016." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-261294.
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Diploma thesis deals with price comparison of family house in Brno – Královo Pole between 2015 and 2016. This family house is located near of the town center and then will be as a simulation moved to the outskirts, Brno – Líšeň. House prices are determined by observed price and market value. The task is to find out and evaluate the price differences, dependents to the valuation time and the place. I will make summary of factors that affect these prices.
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Streit, Günther Arthur. "Comparison of the accuracy of direct versus indirect bracket placement in orthodontics: An in vitro study." University of the Western Cape, 2020. http://hdl.handle.net/11394/7304.
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Magister Scientiae Dentium - MSc(Dent)The purpose of this study was to compare the accuracy of direct versus indirect bracket placement in orthodontics in a controlled setting. The more accurate the initial bracket placement is the less time will be required in terms of treatment. Accurate bracket placement can reduce the envelope of error in the three dimensions of vertical (incisal height, height of tooth), horizontal (mesial-distal) and angular (degrees incisal to root apex causing rotational irregularities) based on Andrews’ six keys to normal occlusion (Andrews, 1979). In this comparative experimental study, 10 Class I molar relation study models were selected from the researcher’s practice archives. Only the MBT pre-adjusted or angulated orthodontic brackets were used on manikins, followed by the use of 3D CAD CAM technology to evaluate the results against a pre-determined golden standard.
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Gottvald, Aleš. "Analýza vlivu lokality a na výši obvyklé ceny rodinných domů v Brně a okolí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234453.
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This Thesis examines the valuation of five family houses in Brno and neighbouring areas. The theoretical part of the paper defines a number of approaches to real estate valuation as well as some key terms and concepts linked to it. The applied part focuses on valuation of the aforementioned family houses by using a range of methods; Cost, comparative and direct comparison. Based on these results a usual price is then set. Based on the estimates of respective prices an analysis of the effect of area on the usual price of a property was conducted.
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Kindbom, Viktor, and Wasim Othman. "Direkta kvantifieringsmetoder av etylenglykol i patientprov : En litteraturstudie." Thesis, Hälsohögskolan, Jönköping University, HHJ, Avd. för naturvetenskap och biomedicin, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49061.
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Etylenglykol (EG) är ett toxiskt ämne som kan orsaka livsfarliga komplikationer. Syftet med studien var att genom systematiska litteratursökningar göra en sammanställning och en jämförelse av metoder som används för direkt kvantifiering av EG i patientprov. Studien utfördes med en systematisk litteraturstudiemetod, genom litteratursökning i två databaser: PubMed och MEDLINE. Datasökningens resultat var 12 vetenskapliga artiklar som validerade fyra direkta kvantifieringsmetoder. De kvantifieringsmetoderna av EG delades upp i fyra grupper: enzymatiska, gaskromatografi med flammajoniserings detektor (GC-FID), gaskromatografi masspektrometri (GC-MS) och vätskekromatografi-tandem-masspektrometri (LC–MS-MS). De fyra metoderna jämfördes för att bestämma vilken metod som har bäst sensitivitet och specificitet. Däremot kunde denna jämförelse inte utföras i GC-MS och LC–MS-MS på grund av avsaknad data för vissa sensitivitet och specificitet parametrar och därav så jämfördes endast enzymatisk metoder och GC-FID mot varandra. Slutsatsen av jämförelsen mellan GC-FID och enzymatiska metoder har antytt på att den termiska desorption-gaskromatografi med flammajoniserings detektor (TDC-GC-FID), som var en ny utveckling av GC-FID, var den bästa metoden utifrån dens sensitivitet och specificitet. Det behövs dock utföras studier där alla fyra metoder testas för samma parametrar för att bestämma den absoluta bästa metoden för direkt kvantifiering av EG.Ethylene glycol (EG) is a toxic substance that can cause life threatening complications. The aim of this study was through systematic literature searches create a summary and comparison between methods used for direct quantification of EG in patient samples. The study performed a literature study in the databases: PubMed and MEDLINE. The data search resulted in 12 scientific articles that validated four direct quantification methods. Those methods were: enzymatic, gas chromatography with flame ionizing detector (GC-FID), gas chromatography mass spectrometry (GC-MS) and liquid chromatography tandem mass spectrometry (LC-MS-MS). The four methods were compared to decide which method had the best specificity and sensitivity. This comparison could not be done in GC-MS and LC-MS-MS due to missing data for certain specificity and sensitivity parameters and therefore only GC-FID and enzymatic methods were compared to each other. The conclusion of the comparison between GC-FID and enzymatic methods have resulted in that the thermal desorption gas chromatography with flame ionizing detector (TDC-GC-FID), that was a newly developed GC-FID, was the best method due to its specificity and sensitivity. Future studies where all four methods are tested for the same parameters to decide the absolute best method for direct quantification of EG is needed.
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Janderková, Eva. "Analýza vlivu polohy na obvyklou cenu vybraných bytových jednotek v městě Brně." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-232923.
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This diploma thesis deals with the valuation of ten residential units. Valuation is done in three ways: cost and comparative method by price prescription and method of direct comparison. Next, determined the usual price. A conclusion of this work is the analysis of the effect of location on the standard price of selected residential units in Brno.
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Navrátilová, Martina. "Analýza rozhodujících vlivů na hodnotu vybraných rodinných domů v Brně." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241124.
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The objective of diploma thesis is to determine the price of five selected houses in Brno and consecutively to define the factors governing their price. The theoretical part is devoted to methods of real estate valuation and fundamental concepts involved. Family houses are valued according to valid Czech regulations and the price is determined. Above that the sales comparison approach is used comparing valuated properties with comparable properties that have recently been offered. A database of such properties has been created and the market value of five selected houses was determined.
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Bečvářová, Hedvika. "Srovnání vybraných způsobů ocenění pro nemovitost typu byt v lokalitě Písek a okolí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232631.
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This master´s thesis is focused on the comparison of selected methods that the use for evaluation real property type flat. Thesis defines the basic notions connected with valuation and describes the methods of valuation. Valuated flats are situated in Písek and surrounding. Work includes description given to areas and maps local situation in the marketplace with flat unit. Flats were selected with different layout.
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Záleský, Radek. "Srovnání vybraných způsobů ocenění pro nemovitost typu byt v městské části Brno-Líšeň." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241352.
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This diploma thesis deals with the valuation of the four residential units in three model situations – without reconstruction, with partial reconstruction and with complete reconstruction. The valuation is done in three selected ways – cost and comparative method by price prescription and method of direct comparison. Is determined the usual price and described and analyzed real estated market in the location. A conclusion of this work is analyzed evaluating the investment in reconstruction and usability of coefficient of condition and equipment.
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Babčanová, Monika. "Analýza metod ocenění výrobního areálu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399629.
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This diploma thesis is focused on assessment of methods in valuation of production area. The area will be valued according to valid price regulations and the usual price. Land will be valued separately. The individual valuation methods will be analyzed and an expert estimate of the price of the whole area will be determined after their evaluation. Using the direct comparison method, a market value estimate will be determined. The real estate market in this area will be analyzed with similar real estate and the main factors affecting price levels will be analyzed. The first part of the thesis will be devoted to theoretical knowledge, then there will be formulated individual problems and used methods, which were used for valuation. In the next part the results of individual methods will be stated and in the final part these results will be analyzed and compared with the recommended sessions for individual methods.
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Vondrák, Tomáš. "Aplikace vybraných způsobů ocenění na rodinný dům v Kamenném Újezdu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-316897.
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The theme of master's thesis is the application of selected methods of valuation on a house in Kamenný Újezd. Thesis deals with theoretical foundation, which describes the basic principles of valuation used, including basic terminology and legislation, and secondly, the work also deals with practical application of the theoretical basis. Practical part includes a description of the location where the family house is located, there is a description of the family house, describing the situation on the local real estate market valuation of selected family house, selected cost methods and by direct comparison and there is also mentioned valuation of land used the construction methods using Naegeli. This award builds on the evaluation of performance each of the valuation methods, comparing the calculated price of shares price of shares listed on the valuation ordinance and the conclusion of this work consists of a total recap the results of the valuation.
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Cikánek, Ondřej. "Analýza metod ocenění výrobního areálu." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-377750.
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The thesis "Analysis of the valuation methods for an industrial site" deals, as the name suggests, with the analysis of the valuation methods for an industrial site. An industrial site will be valued in accordance with the valid valuation rules and then by an open market price. The calculation of the valuation will be divided into the valuation of the building and the appropriate sites. All methods used will be sufficiently analyzed and compared. In common with the valuation process, the main factors affecting the cost of an industrial building and the site will be determined. In the first part of the thesis I will devote the theoretical appraisal, in the second part of the thesis I will devote the practical use of valuation methods.
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Dufek, Jakub. "Srovnání vybraných způsobů ocenění pro bytové a nebytové jednotky v okrese Žďár nad Sázavou." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-233157.
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This diploma thesis is focused on the comparison of selected methods of apartment and commercial units valuation in the district of Žďár nad Sázavou. The theoretical part describes the basic notions connected with valuation, describes the methods of valuation and also the valuated location itself. The practical part deals with the apartment and commercial units valuation using these metods – the metods according to price provision, specifically comparative technice, then the komparative method itself byt not according to price provision and finály using the yield method for an assessment of the current price. In the conclusion there is comparison of all of these used methods.
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Kašparová, Eva. "Analýza vlivu typu konstrukce na výši obvyklé ceny bytů v Hradci Králové." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241331.
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The object of thesis is estimation of the normal price for property type of apartment in Hradec Králové, including finding of the extent to which is the normal price influenced by the type of supporting structure. A partial task is valuation of selected apartments using different valuation methods. The solution task were used the price regulation methods – cost method and comparative method and market valuation methods – yield method and the direct comparison method of valuation, which is estimated market value. Finally the thesis contain a recapitulation of prices and analysis of detected differences.
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Plachetský, Jiří. "Analýza vlivu podlaží a orientace vůči světovým stranám na cenu vybraných bytových jednotek ve Velkém Meziříčí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232820.
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Master‘s thesis is focused on the analysis of the impact the floors and orientation towards the cardinal points on the price of selected housing units in Velké Meziříčí. The theoretical part defines the basic terms associated with the valuation and describes the valuation methods. In the practical part there is performed the valuation of the selected housing units according to the valid price provision and direct comparison method. There is also described a location and a real estate market. By mutual comparing the observed prices and their analysis proves to extent to which in fact examined parameters affect the real price.
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Popescue, Elizabeth Ashley. "Agreement of Peer Comparison Data Between Direct Behavior Rating Scales and Systematic Direct Observation Methods." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1305.
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Recently, Direct Behavior Ratings have been shown to be a promising new tool for observing students and classrooms in an education setting for a variety of behaviors. The traditional method of observing students and classroom behavior was through tools called Systemic Direct Observations. Currently, there are only a few studies looking at the use of a Direct Behavior Rating as a device to collect peer comparison data to estimate classwide behavior problems. This study examined the estimated percentages of on-task and disruptive behavior between a Systemic Direct Observation with momentary time sampling and three random peers, a Systemic Direct Observation with momentary time sampling using the entire class, and a Direct Behavior Rating. Multiple undergraduate classrooms were taped and divided up into twenty-five 7-minute segments. The videos were then coded on all three of the observation forms with 100% reliability ratings. Results indicated that there was a strong relationship between the Direct Behavior Rating and the SDO classwide on-task estimates with 37% of the variance in the Systemic Direct Observation classwide data consistent with the Direct Behavior Rating data. There was a moderate relationship between the on-task Direct Behavior Rating and three-peer on-task with 13% of the variance in the Systemic Direct Observation data as a portion of the Direct Behavior Rating data. Results also showed that there was a significant correlation between Direct Behavior Rating both of the Systemic Direct Observation methods with 43% for the classwide Systemic Direct Observation and 39% of the three-peers Systemic Direct Observation variance consistent with the Direct Behavior Rating data. Implications and future directions were considered. The research yielded results that indicated that Direct Behavior Ratings might be a useful tool when evaluating classwide behavior, and that further research is warranted.
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Boško, Marek. "Aplikace vybraných způsobů ocenění na rodinný dům ve vybrané lokalitě." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-377748.
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The diploma thesis deals with determination of the price of a family house, located in Vranovice. The theoretical part discusses the basic procedures and terminology necessary for property valuation. The aim of the thesis is to use different valuation methods, to evaluate them and to determine the difficulty in terms of the job and the amount of input data needed. Property will be evaluated by direct comparison and cost method. At the end of the thesis we will assess to what extent the price shares listed in the Valuation Ordinance, correspond with the price shares in the item budget and evaluate the calculated prices of the family house.
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Kouřilová, Vendula. "Analýza vlivu rekonstrukce na obvyklou cenu rodinného domu v Kyjově." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241186.
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The subject of this master thesis is detection how the redevelopment and refurbishment affect regular price of family house. For valuation I chose the building in which I grew up so I know it very good. The family house is located in small south-moravian town Kyjov, in district Nětčice. The family house has a basement and two upper floors. Constructions were completed in 1962. Since 1976 many quite expensive redevelopment and refurbishment have been done. For property valuation is used method of direct comparison with the use of database of similar family houses in Kyjov and also cost method according to law number 441/2013 Sb. Valuation is done in two versions – for building in original condition (in 1985) and in current condition. All at once a couple of variants of redevelopment, which are common nowadays, and for one variant is made the itemized budget. Result of this master thesis should be detection if it is better to buy house after redevelopment and refurbishment or house in original condition and make these structural modifications until then.
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Vašíčková, Dominika. "Analýza faktorů ovlivňujících obvyklou cenu bytových jednotek na Vsetínsku." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-377743.
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The thesis is focused on comparing the price of housing units in Vsetín region using different valuation methods. Theoretical part describes the basic concepts related to valuation, individual methods of valuation and description of the region. Practical part is focused on valuation of selected housing unit’s individual methods of valuation, which are the method of valid price provision, the direct comparison method and the yield method for determining the usual price. All these methods will be evaluated and compared in the conclusion of the thesis.
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Kubeš, Fedor. "Srovnání vybraných způsobů ocenění pro nemovitost typu byt v lokalitě Brno - Štýřice a Brno - Černovice." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232638.
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The thesis is focused on a comparison of selected methods for the valuation property type apartment in the area of Brno - Brno Štýřice and Černovice. The thesis is notionally divided into two parts. The theoretical part describes the basic concepts associated with valuation, describes methods used of valuation, real estate market and valued locations. The practical part of thesis is focused on the valuation of flats under the current price regulation with comparative method, the direct comparison method of valuation, method of yield for an assessment the current price. At the end of the thesis are explained and commented upon the facts (locations, methods, prices, costs and profit of development company).
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Zare, mahmoudabadi Mohsen. "Shared representation of work-related musculoskeletal risk factors and comparison of assessment methods : an experimental study in the truck manufacturing industry Evaluation of Ergonomic Approach and Musculoskeletal Disorders in Two Different Organizations in a Truck Assembly Plant A comparison of neck bending and flexion measurement methods for assessment of risk." Thesis, Angers, 2015. http://www.theses.fr/2015ANGE0075.
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Les facteurs de risque de troubles musculo-squelettiques(TMS) tels que les facteurs physiques, organisationnels et psychosociaux sont un défi commun pour les industries de l'assemblage automobile qui entrainent des effets indésirables sur le système et les humains. L’ergonomie a déjà été intégrée dans les systèmes de production de ces industries pour la prise en charge de la prévention des TMS. La question est de savoir si l'approche ergonomique actuelle des industries automobiles, sur la base de normes à l'entreprise et des méthodes d'observation, peut fournir une connaissance partagée des facteurs ergonomiques pour les divers intervenants et pour faciliter l'amélioration des conditions de travail. Cette étude aborde la problématique du positionnement des différents méthodes d'évaluation (utilisées par les différents intervenants) et compare les résultats et apports de chaque méthode d'évaluation. Cette thèse propose que la procédure actuelle d'évaluation des risques de TMS ne favorise pas une connaissance partagée entre les intervenants dans les industries automobiles. On constate que les évaluations par auto-questionnaire (opérateurs) sont significativement différentes de celles issues des méthodes d'observation (ergonome) et des mesures directes (analyse biomécanique). Cependant, les opinions et jugements des opérateurs concernant les facteurs ergonomiques sont importants pour faciliter la réussite d'une approche ergonomique. Un entretien structuré et systématisé, basé sur des données objectives (Video-observations ou de mesure directe) liées aux activités et stratégies des opérateurs, pourrait être une procédure appropriée pour faire progresser l'ergonomie des situations de travail. Enfin, la connaissance tirée de cette thèse souligne que la variabilité des tâches dans l’industrie automobile nécessite une approche ergonomique qui partage les connaissances des risques entre les intervenants. Dans cette approche, les attitudes et les comportements des opérateurs sont pris en compte dans les projets d’amélioration continue. De plus, la participation des intervenants devrait être intégrée afin d'améliorer la prise en compte de l'ergonomie dans la production. Une synthèse de cette thèse en Français a été fournie dans l’annexe premièreMusculoskeletal risk factors such as physical, organizational and psychosocial factors are a common challenge for the automotive assembly industries and result in adverse human and system effects. Ergonomics has already been integrated inthe production systems of such factories to eliminate work related musculoskeletal disorders (WR-MSDs). The issue is whether the current ergonomic approach of car industries, based on corporate standards and observational methods, can provide a shared knowledge of ergonomic factors for various stakeholders and facilitate ergonomic improvement. This study focuses on the positioning of the different assessment methods (used by various stakeholders), agreement between their results in evaluation of physical risk factors and the influence of intervention and improvement following ergonomic assessment. This thesis proposes that the current procedure of risk factor assessment can not provide ashared knowledge and representation of risks between stakeholders in manufacturing industries. It was found that the operators’ assessments of risk factors (self-reported questionnaire) were significantly different from those assessed by observational methods (ergonomist) and direct measurement. However, the operators’ opinions and judgments of ergonomic factors of a job are of particular importance to the success of an ergonomic approach. A structured interview based on objective data (video-observation or direct measurement) linked the activities and strategies of atrisk operators might be an appropriate procedure to advance ergonomics.The knowledge gained from this study emphasizes that the variable nature of tasks in manufacturing industries needs an ergonomic approach which shares knowledge and representation of risks between stakeholders. In such an approach, attitudes and behaviors of operators are taken into consideration in developing new intervention processes, organizational and technical remedies. Moreover, involvement of stakeholders should be integrated and this should result in improving production ergonomics
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Kollárová, Lucie. "Srovnání cen rodinného domu ve vybraných lokalitách v okrese Karviná v letech 2016 a 2017." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-317081.
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The thesis "Comparison of Family House Prices in Selected Locations in the District of Karviná in 2016 and 2017" deals with the awarding of the selected family house at the usual price established in 2016 and 2017 and the determination of the price difference in these years. The family house is fictitious at the beginning in one of the selected locations of the district of Karviná and is then placed in 3 other selected localities. The usual price is determined by comparison. Comparison is made with similar family homes offered for sale in real estate ads. The price determined for 2016 for the year 2017 is determined according to the valuation regulations. In the theoretical part of the thesis are defined and explained the basic important concepts related to valuation and methods of valuation are approximated. In the practical part of the thesis are elaborated various methods of valuation for the years 2016 and 2017 for chosen RD located in selected locations of Karviná district, namely the town of Orlová, the statutory city of Havířov, the town of Bohumín and the village of Petrovice near Karviná. The output of the practical part of the thesis is a comparison of the prices of the usual and discovered ones and they are evaluated by the factors that make the individual prices change.
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Macko, Peter. "Vliv nemateriálových faktorů na cenu rezidenčních staveb ve vybrané lokalitě Brno-venkov." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-414101.
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The subject of the diploma thesis Influence of non-material factors on the price of residential buildings in a selected Brno-venkov location is the valuation of a specific family house in three different localities in the district of Brno-venkov. The valuation of the chosen family house is performed by a comparative approach using the method of a direct comparison. The selected localities include the district of the municipality with extended powers of Rosice, district of the municipality with extended powers of Šlapanice and the district of the municipality with extended powers of Židlochovice. The aim of the work is also to compare an influence of non-material factors on the price of family houses in the selected locality. The individual effects of material and non-material factors on the price of the family house are contained in selected multiplication coefficients, which adjust the price of the compared properties from their own databases considering to the valued object.
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Fillion, Bergeron Marianne. "Plasmid isolation and purification by electrofiltration and comparison of different direct colony sequencing methods and PCR-based sequencing methods." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6050.
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We have designed an electrophoresis system that can purify plasmid DNA from a culture without centrifugation. This system is based on electrofiltration where bacterial cell lysates are loaded in one chamber and the purified plasmid DNA is recovered in an adjacent chamber. These two chambers are separated by a membrane made of regenerated cellulose, which allows plasmid DNA to migrate to the recovery chamber while retaining most contaminants in the loading chamber. Unfortunately, even with the optimization of the parameters involved in the electrofiltration, the only DNA that can pass through the middle membrane still has some contaminants, which prevent sequencing of the plasmid. Our results have shown that a pure plasmid cannot cross a membrane with pores small enough to prevent the migration of most of the contaminants. Only a plasmid complexed with some contaminants can cross a small pore membrane. In parallel, we have compared six direct sequencing methods that do not require any plasmid purification prior to the sequencing reaction. We compared the reliability, quality of sequences, time required, and cost of these six methods. We found that the best method was that of Zhang et al. (1999). This method is fast, reliable, produces good quality sequences and is inexpensive. The performance of this method is due to the amount of ABI's ready reaction mix used, the pre-sequencing heating step to lyse the cell, the large volume of the PCR sequencing reaction and the addition of BSA.
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Svobodová, Olga. "Problematika tržního oceňování komerčních nemovitých věcí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-413828.
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This diploma thesis deals with issue of commercial real estate valuation Two real estate will be valued, namely the production and storage hall and the administrative building, which are located in a different locations. Both estates will be valued using the income approach. The income and costs information will be based on the conducted market analysis, while also being compared to the real data. The thesis itself will be divided into four parts. The first part of diploma thesis will focus on the theoretical basis. In the second part, the problems will be formulated and goals of the thesis (in the form of hypotheses) set. Next, both real estate will be described in detail and valued in a different situations that could occur. The valuation process is clearly shown in a valid process model. And finally, these results will be evaluated.
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Baalen, Jacob Marinus van. "Noninvasive detection of lesions in the carotid artery bifurcation a comparison between direct and indirect techniques /." Assen [etc.] : Maastricht : Van Gorcum ; University Library, Maastricht University [Host], 1987. http://arno.unimaas.nl/show.cgi?fid=5355.
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Janečková, Magdaléna. "Srovnání vybraných způsobů ocenění pro nemovitost typu byt v lokalitě Otrokovice a Zlín." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-232930.
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This diploma thesis deals with the comparison of chosen valuation methods for real estate. The evaluated apartments are located in Otrokovice and Zlin. The theoretical section covers the basic terms associated with the valuation process and it describes the valuation methods which were chosen for this work, as well as the evaluated locations. The practical part is focused on the valuation of the apartments according to valid price provision based on a comparative method, a direct comparison method and yield method for an estimation of the current price.
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Sanghi, Shweta. "Membership Functions for a Fuzzy Relational Database: A Comparison of the Direct Rating and New Random Proportional Methods." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1366.
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Fuzzy relational databases deal with imprecise data or fuzzy information in a relational database. The purpose of this fuzzy database implementation is to retrieve images by using fuzzy queries whose common-language descriptions are defined by the consensus of a particular user community. The fuzzy set, which is presentation of fuzzy attribute values of the images, is determined through membership function. This paper compares two methods of constructing membership functions, the Direct Rating and New Random Proportional, to determine which method gives maximum users satisfaction with minimum feedback from the community. The statistical analysis of results suggests the use of Direct Rating method. Moreover, the analysis shows that the performance of the New Random Proportional method can be improved with the inclusion of a "Not" modifier. This paper also identifies and analyzes issues that are raised by different versions of the database system.
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Dalin, Olle, and Martin Gille. "Method for Military and Civilian Standards Comparison." Thesis, KTH, Maskinkonstruktion (Inst.), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100750.
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Krigsindustrin har historiskt sett varit ledande av den teknologiska utvecklingen. På senare år har dock trenden börjat vända, särskilt vad gäller system och komponenter inom sektorn informationsteknologi. Som ett resultat av detta har krigsindustrin varit tvungen att närma sig den civila, vilket har lett till svårigheter vid jämförelser och anpassning av komponenter och produkter. Skälet till detta är bland annat skillnader i standarder och metoder för miljökvalificering. Syftet med detta examensarbete är att presentera en metod för jämförelser av militära och civila standarder för miljökvalificering. Som referens används utrustning framtagen av SAAB Systems i ett projekt kallat ASMD (Anti-Ship Missile Defence). Den miljö som referensutrustningen kan förväntas utsättas för under sin livscykel analyserades och lämpliga civila standarder för miljökvalificering identifierades. Dessa standarder utvärderades och jämfördes med dess militära motsvarigheter, varefter en metod för presentation av den framtagna och sammanställda informationen skapades. Som demonstration implementerades metoden i Microsoft Excel. Metodens huvudstruktur består av en matris i vilken de behandlade standarderna finns representerade som en rad och som en kolumn. I varje skärningspunkt presenteras en jämförelse av de två aktuella standarderna som återfinns i skärningspunktens rad och kolumn, kategoriserad efter grad av överensstämmelse. Metoden innehåller också sammanfattningar av varje behandlad standard, standarderna i sin helhet och korta introduktioner till de påverkande miljöfaktorerna.Historically, the military industry has been leading the technological evolution. In later years, the tide has begun to turn, especially considering information technology systems and components. As a result, the military industries have had to interoperate with the civilian which, due to the different environmental classification standards and methods used, leads to difficulties when comparing and matching components. The task of this thesis work is to present a method for comparison of military and civilian environmental classification standards. Equipment produced by SAAB Systems for use in a project called ASMD (Anti-Ship Missile Defence) is used as a reference. The expected service life environment of the reference equipment was evaluated, followed by the identification of suitable civilian classification standards. These were analysed and compared with the corresponding military. A method for presenting the information gathered was designed and demonstratory implemented in Microsoft Excel. The main structure of the method is a matrix containing all the standards covered by this evaluation, each listed both as a row and as a column. The fields between the row and the column contain comparisons of the intersecting standards, each categorised by the level of correspondence. The method also incooperates summaries of each standard, the standards in their entirety and introductions to areas of environmental factors.
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Demmer, Rick. "Decontamination method comparison testing using simulated contamination." Thesis, Lancaster University, 2016. http://eprints.lancs.ac.uk/80223/.
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Radiological decontamination of surfaces is challenging. Cleanup tasks are typically visual or even chemically measured, but radioactive contamination is invisible and measured at extremely low levels. Different contamination events have lead to the development of hundreds of decontamination processes. Their selection balances criteria such as cost effectiveness and waste minimization. While testing on the actual system where the contaminations arises (as "field" radioactive specimens) is appropriate, doing so is expensive and time consuming. Simulating contamination with substitute contaminants requires a unique understanding of the system. This provides a less expensive, more controlled and often more informative selection method. However, not all simulation methods are reliable, reproducible, have a useful range nor are relevant to the target activity. To address these needs, a range of simulated contamination systems have been developed: ·SIMCON 1 – to simulate loose contamination on stainless steel; ·SIMCON 2 – to simulate fixed contamination on oxide coated stainless steel; ·A radiological dispersal device (RDD) or so-called “dirty bomb” contaminant to simulate fixed contamination on urban material surfaces. Over 400 individual decontamination tests have been performed with these simulants, using a range of contaminants (Cs, Zr, Am, Sr, Co) and substrates (steel, concrete, marble, limestone, granite). Review and data mining of the results of these tests has allowed for the development of an understanding of the fundamental mechanisms of interaction between contamination and surface and their role in determining decontamination efficiency. Detailed analysis of the SIMCON results demonstrates that the availability of a deliberately designed contamination simulant system allows for the comparative assessment of a wide range of decontamination methods in a common frame of reference on a “level playing field”. Though somewhat intuitively obvious, the SIMCON methods evaluation unambiguously demonstrated that chemically different contaminants may behave quite differently during a decontamination action. The exact nature of this behavior depends upon the nature of applications (loose or fixed) and the decontamination method itself. If a wide range of decontamination methods are deployed on a well-designed contamination simulant, comparison of the results of the decontamination tests may provide insight into the mechanism of contamination e.g. how it is held (loose, fixed etc.), where it is held (on the surface, in a protective oxide layer etc.) and so forth. These conclusions are reinforced by detailed consideration of the urban RDD simulant decontamination data. With respect to the contaminants themselves, it is found that cations that exhibit a pH dependent speciation, such as americium or cobalt, can demonstrate radionuclide / material substrate specific chemistry that results in contaminant precipitation at the substrate surface, especially if the material has an intrinsically alkaline surface pH. For example, in the case of Am and Co, this results in the precipitation of Am and Co oxyhydroxide species at the outer surface of materials such as concrete with consequently high percentage removal efficiencies. For cationic radionuclides such as Cs+ that do not exhibit any nuclide/material surface specific chemistry the principal material property controlling the tenacity of that nuclide during decontamination from urban material substrates is the permeability of that substrate. For substrates of similar permeability, net surface negative charge on the material substrate plays a major role in determining the tenacity of non-reactive cations such as cesium; the larger the net negative charge on the substrate surface, the more tenacious the contamination. Finally, with respect to the decontamination agents themselves, harsh, high concentration chemical agents that utilize multiple decontamination processes (acids, bases, chelants) typically have an effectiveness advantage over more dilute, one component solutions. Strongly acidic solutions achieve the highest overall % removal decontamination results. This is partly because they tend to dissolve small amounts of the substrate surface and liberate imbibed contaminants. Finally, some strippable coating based methods are found to be surprisingly effective; likely because of their chelant/absorbtive character.
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Vondrová, Monika. "Analýza vybraných faktorů ovlivňujících zjištěnou a obvyklou cenu bytů v Ústí nad Orlicí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232630.
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The aim of this master´s thesis is valuation of 11 real estate propetries of type flat in Ústí nad Orlicí by selected methods of valuation. Subsequently comparison of these methods and analysis of selected factors influencing the ascertained price and the standard price is done.
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Hausler, Melanie. "Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4004.
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Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaVegetation parameters, as the leaf area index (LAI) and the ground cover (GC) are commonly related to biosphere processes, being used in models to estimate yield and crop water requirements. Several direct and indirect methods have been developed in the past decades to determine the LAI. However, a simple approach to assess this parameter is still missing. In this study we tested the operability and precision of different methods to calculate the LAI of 6 and 20 year old olive trees (Arbequina and Cobrançosa), under irrigated and non-irrigated conditions in the region of Alentejo. The average LAI on a projected area basis was estimated to be 5.88 and 2.75 m2 m-2 at the irrigated and non-irrigated sites, respectively, corresponding to 1.01 and 1.05 m2 m-2 on a total area basis. Furthermore, a tool was introduced to simplify the decision making between the use of the LAI and the GC. The determination of the GC is much easier than the LAI in practical uses. The average GC was 5.7 m2 under irrigated and 18.0 m2 under non-irrigated conditions. A detailed comparison between direct and indirect methods is given and the future prospective of the decision making tool is discussed.
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Che, Peining. "ZERO-SHOT OBJECT DETECTION METHOD COMPARISON AND ANALYSIS." Miami University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1567160037757546.
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Simonides, Martin. "Srovnání vybraných způsobů ocenění pro nemovitost typu byt v lokalitě Děčín a okolí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232636.
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The thesis deals with the comparison of selected methods of flat valuation in Děčín and its surroundings. The theoretical part is aimed at crucial terms, definitions and formulas and it covers the description of the area from the social, economic, cultural and historical point of view. The practical part includes the obtained data analysed by means of database and verified by the Grubbs' method. Methods employed in price determination are: price in accordance with public notes; usual price; physical value. The conclusion refers to the price comparison in accordance with employed methods and to the evaluation of the effect of reconstruction on the price of the real estate.
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Mannar, Kamantha. "Comparison of heat transfer models at the pebble, gas and reflector interface in the PBMR / Kamantha Mannar." Thesis, North-West University, 2010. http://hdl.handle.net/10394/5083.
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It is a great challenge in the design of the PBMR to accurately predict gas flow and heat transfer in the reactor. Understanding the heat transfer at the core-reflector interface in particular is a very important aspect as the reactivity of the control rods housed in the reflectors is highly temperature dependent. It is also very important because the core-reflector interface is on the critical path for heat removal during accident conditions. PBMR has developed an OECD/NEA coupled neutronic/thermal-hydraulic benchmark to aid in the understanding of the different modelling approaches currently employed at PBMR. A comparison of THERMIX-KONVEK and DIREKT results showed large temperature differences at the core-reflector interfaces. Further investigation showed that these differences are as a result of the numerical methods used i.e. Cell-Centred (CC) vs. Vertex-Centered (VC). The present study extended this comparison to Star-CD (CC) and Flownex (VC) which are also used to simulate the reactor at PBMR. An ID MATLAB program that mimics the CC and VC numerical methods was verified against Star-CD and Flownex. This program was then used to model an ID version of the OECD/NEA benchmark. Results were compared with DIREKT and THERMIX-KONVEK. Although the results compared well, there were significant errors at the core-reflector interfaces. The findings of this study were that different numerical methods will predict different temperatures, heat fluxes and (temperature-dependent) sink terms. It was also shown that in addition to the differences resulting from numerical methods, differences were seen between Star-CD and DIREKT and Flownex and THERMIX-KONVEK in the region of the core-reflector boundary. In general, for complicated simulations like that of the pebble bed, the numerical basis of software used to simulate the problem needs to be understood for the problem to be correctly modelled.Thesis (M.Sc. Engineering Sciences (Nuclear Engineering))--North-West University, Potchefstroom Campus, 2010.
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Greene, Amanda E. "Pedometers Accelerometers and Observational Methods: A Comparison of Measurements of Physical Activity in Fourth-Grade Students." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1373.
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In recent years physical inactivity among students has become a matter of great concern. Nearly 65% of students do not meet the daily recommended level of physical activity, which is 60 minutes or more of moderate to vigorous physical activity each day, with 50% of that time being spent in moderate to vigorous levels of activity (CDC, 2010b). As a result, the 21st century has shown to be a time of many health problems such as, obesity, diabetes, and heart disease. In fact, nearly one third of all children are considered obese or overweight (Slawta & DeNeui, 2009). Researchers suggest that these health problems are directly related to students' sedentary lifestyles (Pate et al., 2006). Schools play a pivotal role in addressing and increasing physical activity during the school day.
The purpose of this research study was to measure levels of physical activity in elementary students during school hours. Specifically, the study sought to discover if there were increased levels of physical activity while students were using a cross-curricular adventure playground, as compared to when they were engaged in free play or physical education class. The study also compared the different measurement types (pedometers, accelerometers, and the observational method) used to assess physical activity, to indicate which measurement types were most feasible in the elementary school setting. Schools are ideal locations for assessing levels of physical activity, as 95% of all children are enrolled in these learning institutions (National Center for Educational Statistics, 2005).
The data indicate that physical education provided for the highest levels of moderate to vigorous activity, while both free play and cross-curricular activity still rendered adequate levels of physical activity. After studying the different measurement protocols (pedometers, accelerometers, and the observational method) used in this study, results suggested the pedometer to be the most feasible device to use for measuring children in these types of physical activity settings. One implication for practice was implementing cross-curricular physical activity as a supplement to other physical activities or as an addition to physical education classes in an effort to allow more time for academic instruction while having students engaged in physical activity. Another recommendation for practice was to use pedometers as a cost-effective physical activity measurement device for elementary students.
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Dean, Kenneth Marvin. "A comparison of the genealogical method of textual criticism with the Claremont profile method." Theological Research Exchange Network (TREN), 2005. http://www.tren.com.
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Nagaswamy, Sriram. "Comparison of CELP speech coder with a wavelet method." Lexington, Ky. : [University of Kentucky Libraries], 2005. http://lib.uky.edu/ETD/ukyelen2006t00376/Thesis.pdf.
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Thesis (M.S.)--University of Kentucky, 2005.Title from document title page (viewed on January 30, 2006). Document formatted into pages; contains: ix, 124 p. : ill. Includes abstract and vita. Includes bibliographical references (p. 118-123).
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Nagaswamy, Sriram. "Comparison of CELP speech coder with a wavelet method." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/269.
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This thesis compares the speech quality of Code Excited Linear Predictor (CELP, Federal Standard 1016) speech coder with a new wavelet method to compress speech. The performances of both are compared by performing subjective listening tests. The test signals used are clean signals (i.e. with no background noise), speech signals with room noise and speech signals with artificial noise added. Results indicate that for clean signals and signals with predominantly voiced components the CELP standard performs better than the wavelet method but for signals with room noise the wavelet method performs much better than the CELP. For signals with artificial noise added, the results are mixed depending on the level of artificial noise added with CELP performing better for low level noise added signals and the wavelet method performing better for higher noise levels.
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Di, Girolamo Nicola <1987>. "Method-Comparison and Reference Interval Determination in Animal Medicine." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7650/.
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An acceptable agreement permits interchangeability of the instruments. For this purpose, we have investigated the agreement of several clinical instruments frequently used in clinical practice with their laboratory counterpart. We have estimated the agreement between a point-of-care blood gas analyzer (i-Stat, Abaxis) and a bench-top blood gas analyzer (Nova, Biomedical) in venous samples from Hermann’s tortoises. We have estimated the agreement between a point-of-care chemistry analyzer (VetScan VS2, Abaxis) and a laboratory analyzer (Olympus AU400, Olympus Co.) in venous samples from Hermann’s tortoises. We have estimated the agreement between portable blood glucose meters (Accu-Chek, Aviva; AlphaTrak 2, Abbott) and a laboratory analyzer (Dimension EXL, Siemens) in venous samples from client-owned rabbits. We have estimated the agreement between point-of-care bench-top glucose measurement (VetScan VS2, Abaxis) and a laboratory analyzer (Dimension EXL, Siemens) in venous samples from client-owned rabbits.
Beyond method comparison and validation, reference interval determination for common laboratory testing is required to allow the clinician to discriminate individuals that are different from the remaining population for a certain parameter. We have calculated reference intervals for blood gas in Hermann’s tortoises. We have calculated reference intervals for protein electrophoresis in Hermann’s tortoises. We have described normal hematology in Hermann’s tortoises. We have calculated reference intervals for clinical chemistry in Hermann’s tortoises. We have calculated reference intervals for aldosterone in ferrets. Based on our results, animal species requires individual validation of laboratory methods and reference intervals. Lack of consideration of these findings may result in clinical misdiagnosis and improper treatment of animals.
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Olafsson, Jonas. "Antimicrobial Susceptibility Testing Directly from Urine Samples : a Comparison between Standardised and Direct Disk Diffusion Testing together with Direct Species Identification using Matrix Assisted Laser Desorption/Ionisation Time of Flight." Thesis, Linnéuniversitetet, Institutionen för naturvetenskap, NV, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-27645.
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Urinary tract infection (UTI) is a very common infection in humans and a majority is caused by Escherichia coli. UTI are commonly treated empirically. However, empiric treatment has become more problematic due to increased antibiotic resistance to commonly used antibiotic agents. It is therefore desirable with short turnover times for antimicrobial susceptibility testing and species identification to improve antibiotic treatment at an early stage. Matrix Assisted Laser Desorption/Ionisation Time of Flight (MALDI-TOF) can provide species identification faster than former routine methods. This study compared direct and standard susceptibility testing using disk diffusion on Enterobacteriaceae (EB) from urine samples. The possibility to standardise the inoculum for direct susceptibility testing via a pellet obtained by a series of centrifugations was also evaluated, as well as direct species identification with MALDI-TOF from the pellet. Results from direct susceptibility testing from urine samples with EB, performed either directly from the urine or with a standardised inoculum, correlated well to those obtained with standardised susceptibility testing using EUCAST disk diffusion methodology with few errors, of which most were associated with Proteus mirabilis. The concept of standardising the inoculum for direct susceptibility testing to 0.5 McFarland was labour intensive and did not improve the results further. However, direct species identification from the urine pellet using MALDI-TOF showed good correlation to routine identification. Of 238 samples, an EB was correctly identified in 148 samples using MALDI-TOF.
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Vovsová, Alena. "Srovnání vybraných způsobů ocenění pro bytové jednotky v typových domech v okrajových částech města Brna." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232632.
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This diploma thesis is focused on the comparison of selected methods of apartment valuation in the location of Brno, in specific on the apartment - high-rise block. The theoretical part describes the basic notions connected with valuation, describes the methods of valuation and also the valuated locations itself. The practical part deals with the aparment valuation using these methods - the method according to price provision, specifically comparative technique, then the comparative method itself but not according to price provision and finally using the yield method for an assessment of the current price.
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Gulino, Sarah, and Christine Guzman. "A Comparison of Bergstrom’s 60 Second Kinetics Method with the Matzke Method of Vancomycin Kinetics." The University of Arizona, 2008. http://hdl.handle.net/10150/624272.
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Class of 2008 AbstractObjectives: A novel method of predicting vancomycin trough levels at steady state was studied to determine whether it could effectively predict vancomycin trough levels compared to an established predictor method (Matzke). Methods: Adult patients who received at least two consecutive doses of vancomycin and had at least one reported vancomycin trough at steady state were considered. Data extracted and analyzed included patient gender, age, weight, height, and serum creatinine as well as vancomycin dose and interval, number of consecutive doses prior to the trough, time between trough and preceding dose, and measured vancomycin trough level. This data was applied to each of the prediction methods to determine how accurately they predicted actual measured vancomycin trough levels at steady state. Results: Data from 103 patients was analyzed. Vancomycin trough predictions using the Bergstrom method averaged 12.2 mg/dl, with a standard deviation of 3.4. The average actual trough concentration was 10.7 mg/dl with a standard deviation of 3.9, while the Matzke method predicted an average trough concentration of 19.2 mg/dl with a standard deviation of 8.6. Predictions made using the Bergstrom Method were not significantly different than the actual trough concentrations (p = 0.91). The Bergstrom method predicted concentrations within 25% of actual concentrations 42% of the time and within 50% of actual concentrations 78% of the time. Conclusions: The Bergstrom method was a more reliable predictor of vancomycin trough concentrations than the Matzke method in this patient population. Although more research is needed, the Bergstrom method may prove to be a useful tool for pharmacists to predict vancomycin trough concentrations quickly and with relative accuracy for individual patients.
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Coskun, Nart. "A comparison of configutration arrays for the resistivity and induced polarisation methods and a direct interpretation technique for vertical profiling field data." Thesis, University of York, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261078.
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Denenholz, Laura. "Qualitative and Quantitative Method Comparison in Animal-Assisted Therapy Research." Scholarship @ Claremont, 2011. http://scholarship.claremont.edu/cmc_theses/232.
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While there have been many presentations and anecdotal evidence in support of AAT, quantitative empirically validated studies are very limited. Without quantitative empirical studies to support the effectiveness of AAT, it remains an unproven complement to traditional physical and psychotherapeutic practices (Kruger & Serpell,2010). The value and importance of non-empirical literature on AAT,including therapists’ observations, various author’s personal experiences, and unstructured interviews with patients, will be explored in the next section. Empirical literature on AAT, including scientific experiment and controlled research studies, will also be addressed. Finally, a conclusion providing ideas for future directions in research in this discipline will be presented.
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Tempfli, Peter. "Preprocessing method comparison and model tuning for natural language data." Thesis, Högskolan Dalarna, Mikrodataanalys, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-34438.
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Twitter and other microblogging services are a valuable source for almost real-time marketing, public opinion and brand-related consumer information mining. As such, collection and analysis of user-generated natural language content is in the focus of research regarding automated sentiment analysis. The most successful approach in the field is supervised machine learning, where the three key problems are data cleaning and transformation, feature generation and model choice and training parameter selection. Papers in recent years thoroughly examined the field and there is a agreement that relatively simple techniques as bag-of-words transformation of text and a naive bayes models can generate acceptable results (between 75% and 85% percent F1-scores for an average dataset) and fine tuning can be really difficult and yields relatively small results. However, a few percent in performance even on a middle-size dataset can mean thousands of better classified documents, which can mean thousands of missed sales or angry customers in any business domain. Thus this work presents and demonstrates a framework for better tailored, fine-tuned models for analysing twitter data. The experiments show that Naive Bayes classifiers with domain specific stopword selection work the best (up to 88% F1-score), however the performance dramatically decreases if the data is unbalanced or the classes are not binary. Filtering stopwords is crucial to increase prediction performance; and the experiment shows that a stopword set should be domain-specific. The conclusion is that there is no one best way for model training and stopword selection in sentiment analysis. Thus the work suggests that there is space for using a comparison framework to fine-tune prediction models to a given problem: such a comparison framework should compare different training settings on the same dataset, so the best trained models can be found for a given real-life problem.
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Dai, Chenglu. "The Profile Likelihood Method in Finding Confidence Intervals and its Comparison with the Bootstrap Percentile Method." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/DaiC2008.pdf.
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Stuive, Ilse. "A comparison of confirmatory factor analysis methods: oblique multiple group method versus confirmatory common factor method." [S.l. : Groningen : s.n. ; University Library of Groningen] [Host], 2007. http://irs.ub.rug.nl/ppn/305281992.
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Welderufael, W. A., and Y. E. Woyessa. "Stream flow analysis and comparison of methods for base flow separation : case study of the Modder River basin in central South Africa." Interim : Interdisciplinary Journal, Vol 8, Issue 2: Central University of Technology Free State Bloemfontein, 2009. http://hdl.handle.net/11462/375.
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Published ArticleA stream flow at an outlet of a catchment can be entirely a base flow or direct flow or a combination of both. The base flow component of a stream is mainly contributed from the ground water storage which often is an open aquifer whereas the direct flow component is mainly the result of a direct response of a rainfall event. The Upper Modder river basin catchment is considered to be the origin of the Modder River which supplies water to Rustfontein Dam, situated at the outlet of the C52A with an area of 928 km2. Nine years of daily stream flow showed a continuous none zero discharge throughout the year. During the rainy season the discharge of the stream increases significantly. Thus, it is necessary to separate the direct and base flow of the stream in order to understand the important component that is more likely to be affected by different land use changes in a catchment. The Modder river daily mean flow at the inlet of Rustfontein dam (in Central South Africa) was analysed using four base flow separation methods, the Nathan & McMahon (N&M), the Chapman, Smakhtin & Watkins (S&W) method and the frequency duration analysis. All the methods gave higher percentage of the low flow component, except for the S&W method which underestimated it. The N&M filtering equation gave base flow components greater than 66% in 1999 and increased to 84% in 2007 while the Chapman equation revealed 65% and 74% in 1999 and 2007, respectively. Similarly, the frequency duration analysis gave 62% in 1999 and increased to 79% in 2007. The frequency duration analysis gave up to 13% lower percentage than the N&M (1990) filtering equation. The nine year base flow averages are 69%, 69% and 75% for frequency duration analysis, Chapman (1999) and N&M (1990) filtering equations, respectively. The result revealed that the Modder River is largely supplied by the ground water discharge. The result seemed to concur with the fact that for a semi-arid catchment such as the Modder river basin, with an average annual runoff coefficient of approximately 6%, the contribution of annual rainfall to direct runoff is very minimal.