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Dissertations / Theses on the topic 'Randic index'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Lengua, Balbi Juan Armando. "DEL VALLE RANDICH, Luis, Derecho Procesal Penal, Parte General, Lima, 1967, 329 pp." Pontificia Universidad Católica del Perú, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/115342.

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2

Islyaev, Suren. "Stochastic models with random parameters for financial markets." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/10344.

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The aim of this thesis is a development of a new class of financial models with random parameters, which are computationally efficient and have the same level of performance as existing ones. In particular, this research is threefold. I have studied the evolution of storable commodity and commodity futures prices in time using a new random parameter model coupled with a Kalman filter. Such a combination allows one to forecast arbitrage-free futures prices and commodity spot prices one step ahead. Another direction of my research is a new volatility model, where the volatility is a random varia

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3

Rivasplata, Zevallos Omar, and Byron Schmuland. "Invariant and reversible measures for random walks on Z." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/95643.

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In this expository paper we study the stationary measures of a stochastic process called nearest neighbor random walk on Z, and further we describe conditions for these measures to have the stronger property of reversibility. We consider both the cases of symmetric and non-symmetric random walk.

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4

Mok, Debby M. Y. "Intraday random walk and price reversals in Hang Seng index futures and S&P 500 futures." HKBU Institutional Repository, 2000. http://repository.hkbu.edu.hk/etd_ra/232.

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5

Kavuri, Kranthi. "Investigation of the validity of the ASTM standard for computation of International Friction Index." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002780.

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6

KONDO, TAKAAKI, AKIKO KIMATA, KANAMI YAMAMOTO, et al. "MULTILEVEL ANALYSES OF EFFECTS OF VARIATION IN BODY MASS INDEX ON SERUM LIPID CONCENTRATIONS IN MIDDLE-AGED JAPANESE MEN." Nagoya University School of Medicine, 2009. http://hdl.handle.net/2237/11333.

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7

Jiang, Huiquan. "Incorporating Climate Sensitivity for Eastern United States Tree Species into the Forest Vegetation Simulator." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/75220.

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Detecting climate-induced effects in forest ecosystems become increasingly important as more evidence of greenhouse-gas-related climate change were founded. The Forest Vegetation Simulator (FVS) is an important growth and yield model used to support management and planning on public forest lands over the southern United States, however its prediction accuracy was challenged due to its climate- insensitive nature. The goal of this study was to develop species-specific prediction models for eastern U.S. forest tree species with climate and soil properties as predictors in order to incorporate t

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8

Iguíñiz, Echeverria Javier María. "Sachs, Jeffrey. El fin de la pobreza. Cómo conseguirlo en nuestro tiempo. Madrid: Random House Mondadori-Debate abierto. 2005, 549 pp." Economía, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/118088.

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9

Theopold, Adrian Pit [Verfasser], Mathias [Akademischer Betreuer] Vetter, and Viktor [Gutachter] Todorov. "Estimation of the Jump Activity Index in the Presence of Random Observation Times / Adrian Pit Theopold ; Gutachter: Viktor Todorov ; Betreuer: Mathias Vetter." Kiel : Universitätsbibliothek Kiel, 2019. http://d-nb.info/1225741386/34.

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Beltrán, Johel. "Medida aleatoria de Poisson." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/96813.

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In this monograph we continue with the inspection initiated in [1] on the fundamental tools introduced in the approach proposed in [2,3] for the study of metastability. We give the definition of the Poisson random measures and prove the main properties that we will subsequently use to construct Markov processes with finite state space. Such construction will allow us to provide a probabilistic proof of the fact that the law of a Markov process solves the martingal problem.<br>En esta monografía continuamos con el desarrollo iniciado en [1] sobre las herramientas fundamentales usadas en el abor

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Sundqvist, Martina. "Stability and selection of the number of groups in unsupervised clustering : application to the classification of triple negative breast cancers." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASM026.

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Dans cette thèse, je traite, d'un point de vue statistique, le sujet de la classification des tumeurs du cancer du sein triple négatif (TNBC). Je me concentre principalement sur l'utilisation de la stabilité des clusters pour sélectionner le nombre de groupes dans le clustering, la méthode généralement utilisée pour la classification des TNBC. L'objectif de cette méthode est d'obtenir une classification robuste, c'est-à-dire facilement reproductible sur des données similaires.Malgré sa popularité, on sait encore peu de choses sur la façon dont cette méthode fonctionne. Pour cette raison, je pr

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Chen, Silin. "Reliability-based design of concrete-filled steel tubular (CFST) truss systems by advanced analysis." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/24557.

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Concrete-filled steel tubular (CFST) truss is a type of composite structure with CFST chords and hollow tubular braces. CFST trusses have been increasingly used in large-scale structures such as towers, bridge girders, piers and arch ribs. The compression and flexural behaviour of CFST trusses are greatly improved compared to hollow tubular trusses due to the concrete infill in chords. For such complex composite structural systems, traditional structural analysis approaches are readily applied for the safety checks of individual members and connections, whilst system-level inelastic analysis a

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13

Forsblom, Findlay, and Lars Petter Ulvatne. "Snow depth measurements and predictions : Reducing environmental impact for artificial grass pitches at snowfall." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96395.

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Rubber granulates, used at artificial grass pitches, pose a threat to the environment when leaking into the nature. As the granulates leak to the environment through rain water and snow clearances, they can be transported by rivers and later on end up in the marine life. Therefore, reducing the snow clearances to its minimum is of importance. If the snow clearance problem is minimized or even eliminated, this will have a positive impact on the surrounding nature. The object of this project is to propose a method for deciding when to remove snow and automate the information dispersing upon clea

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Alves, Vinícius Santino. "Um algoritmo evolutivo rápido para agrupamento de dados." Universidade Católica de Santos, 2007. http://biblioteca.unisantos.br:8181/handle/tede/608.

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Made available in DSpace on 2015-02-04T21:45:28Z (GMT). No. of bitstreams: 1 Vinicius Alves.pdf: 740567 bytes, checksum: bf37e8ad38e43e90f7ff2432e96b31c1 (MD5) Previous issue date: 2007-02-23<br>A atividade de agrupamento de dados (obter uma partição que represente a estrutura de um conjunto de objetos) é de vasta aplicabilidade e importância nos dias de hoje. Ferramentas de agrupamento de dados são aplicadas em diversos domínios: inteligência artificial, reconhecimento de padrões, economia, ecologia, psiquiatria, marketing, entre outros. Algoritmos evolutivos são ferramentas inspiradas na t

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BAJNI, GRETA. "STATISTICAL METHODS TO ASSESS ROCKFALL SUSCEPTIBILITY IN AN ALPINE ENVIRONMENT: A FOCUS ON CLIMATIC FORCING AND GEOMECHANICAL VARIABLES." Doctoral thesis, Università degli Studi di Milano, 2022. http://hdl.handle.net/2434/913511.

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The overarching goal of the doctoral thesis was thus the development of a systematic procedure capable to examine and enhance the role of geomechanical and climatic processes in rockfall susceptibility, performed with statistically based and Machine Learning techniques. To achieve this purpose, two case studies were analysed in the Italian Alps (Valchiavenna, Lombardy Region; Mountain Communities of Mont Cervin and Mont Emilius, Aosta Valley Region). For both case studies, Generalized Additive Models (GAM) were used for rockfall susceptibility assessment; for the Valchiavenna case study, a Ra

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Quéré, Romain. "Quelques propositions pour la comparaison de partitions non strictes." Phd thesis, Université de La Rochelle, 2012. http://tel.archives-ouvertes.fr/tel-00950514.

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Cette thèse est consacrée au problème de la comparaison de deux partitions non strictes (floues/probabilistes, possibilistes) d'un même ensemble d'individus en plusieurs clusters. Sa résolution repose sur la définition formelle de mesures de concordance reprenant les principes des mesures historiques développées pour la comparaison de partitions strictes et trouve son application dans des domaines variés tels que la biologie, le traitement d'images, la classification automatique. Selon qu'elles s'attachent à observer les relations entre les individus décrites par chacune des partitions ou à qu

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Кичигіна, Анастасія Юріївна. "Прогнозування ІМТ за допомогою методів машинного навчання". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2020. https://ela.kpi.ua/handle/123456789/37413.

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Дипломна робота містить : 100 с., 17 табл., 16 рис., 2 дод. та 24 джерела. Об’єктом дослідження є індекс маси тіла людини. Предметом дослідження є методи машинного навчання – регресійні моделі, ансамблева модель випадковий ліс та нейронна мережа. В даній роботі проведено дослідження залежності індексу маси тіла людини та наявності надмірної маси тіла від харчових та побутових звичок. Для побудови дослідження були використані методи машинного навчання та аналізу даних, проведено роботу для визначення можливостей по покращенню роботи стандартних моделей та визначено кращу модель для реаліза

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Olson, Brent. "Evaluating the error of measurement due to categorical scaling with a measurement invariance approach to confirmatory factor analysis." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/332.

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It has previously been determined that using 3 or 4 points on a categorized response scale will fail to produce a continuous distribution of scores. However, there is no evidence, thus far, revealing the number of scale points that may indeed possess an approximate or sufficiently continuous distribution. This study provides the evidence to suggest the level of categorization in discrete scales that makes them directly comparable to continuous scales in terms of their measurement properties. To do this, we first introduced a novel procedure for simulating discretely scaled data that was both i

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Hansén, Jacob, and Axel Gustafsson. "A Study on Comparison Websites in the Airline Industry and Using CART Methods to Determine Key Parameters in Flight Search Conversion." Thesis, KTH, Matematisk statistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254309.

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This bachelor thesis in applied mathematics and industrial engineering and management aimed to identify relationships between search parameters in flight comparison search engines and the exit conversion rate, while also investigating how the emergence of such comparison search engines has impacted the airline industry. To identify such relationships, several classification models were employed in conjunction with several sampling methods to produce a predictive model using the program R. To investigate the impact of the emergence of comparison websites, Porter's 5 forces and a SWOT - analysis

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Kutty, Sangeetha. "Enriching XML documents clustering by using concise structure and content." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48326/1/Sangeetha_Kutty_Thesis.pdf.

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With the growing number of XML documents on theWeb it becomes essential to effectively organise these XML documents in order to retrieve useful information from them. A possible solution is to apply clustering on the XML documents to discover knowledge that promotes effective data management, information retrieval and query processing. However, many issues arise in discovering knowledge from these types of semi-structured documents due to their heterogeneity and structural irregularity. Most of the existing research on clustering techniques focuses only on one feature of the XML documents, thi

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Barroso, Juarez Coelho. "AvaliaÃÃo da Pesca da Lagosta Vermelha (Panulirus argus) e da Lagosta verde (Panulirus laevicauda) na Plataforma Continental do Brasil." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7259.

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CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>A pesca extrativa de lagosta no Brasil Ã uma atividade econÃmica importante que engloba diferentes setores sociais na regiÃo costeira e que aporta um ingresso mÃdio anual de 84 milhÃes de dÃlares. A grande demanda do produto, o elevado valor no mercado internacional, a expansÃo da frota artesanal, o nÃo cumprimento das medidas de conservaÃÃo, o impacto da pesca no ecossistema e possivelmente a variabilidade do clima, tem propiciado uma elevada explotaÃÃo ou sobre-explotaÃÃo dos estoques destes crustÃceos. A avaliaÃÃo e previsÃo da pescaria de

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Esler, William Kevin. "On the development and application of indirect site indexes based on edaphoclimatic variables for commercial forestry in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20145.

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Thesis (MScFor)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Site Index is used extensively in modern commercial forestry both as an indicator of current and future site potential, but also as a means of site comparison. The concept is deeply embedded into current forest planning processes, and without it empirical growth and yield modelling would not function in its present form. Most commercial forestry companies in South Africa currently spend hundreds of thousands of Rand annually collecting growth stock data via inventory, but spend little or no money on the default compartment da

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Paditz, Ludwig. "Beiträge zur expliziten Fehlerabschätzung im zentralen Grenzwertsatz." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-115105.

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In der Arbeit wird das asymptotische Verhalten von geeignet normierten und zentrierten Summen von Zufallsgrößen untersucht, die entweder unabhängig sind oder im Falle der Abhängigkeit als Martingaldifferenzfolge oder stark multiplikatives System auftreten. Neben der klassischen Summationstheorie werden die Limitierungsverfahren mit einer unendlichen Summationsmatrix oder einer angepaßten Folge von Gewichtsfunktionen betrachtet. Es werden die Methode der charakteristischen Funktionen und besonders die direkte Methode der konjugierten Verteilungsfunktionen weiterentwickelt, um quantitative Aussa

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Barroso, Juarez Coelho. "Avaliação da Pesca da Lagosta Vermelha (Panulirus argus) e da Lagosta verde (Panulirus laevicauda) na Plataforma Continental do Brasil." reponame:Repositório Institucional da UFC, 2012. http://www.repositorio.ufc.br/handle/riufc/18432.

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BARROSO, Juarez Coelho. Avaliação da Pesca da Lagosta Vermelha (Panulirus argus) e da Lagosta verde (Panulirus laevicauda) na Plataforma Continental do Brasil. 2012. 109 f. : Dissertação (mestrado) - Universidade Federal do Ceará, Centro de Ciências Agrárias, Departamento de Engenharia de Pesca, Fortaleza-CE, 2012<br>Submitted by Nádja Goes (nmoraissoares@gmail.com) on 2016-07-18T13:17:31Z No. of bitstreams: 1 2012_dis_jcbarroso.pdf: 2594115 bytes, checksum: ce2b67584a13e444ae16d1c1c08898f1 (MD5)<br>Approved for entry into archive by Nádja Goes (nmoraissoares@gmail.com) on 2016-07-18T13:17:44Z

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Hiratsuca, Simone. "Gráfico de controle para monitoramento da razão da demanda e mão de obra em retaguarda de serviços no setor bancário." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3136/tde-01072016-133748/.

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O monitoramento da razão Z de duas variáveis através de gráfico de controle tem sido um tema recentemente explorado na literatura. Para analisar mais o assunto, o estudo avalia a eficiência e viabilidade de aplicação dessa ferramenta como suporte na tomada de decisão para gerenciamento de capacidade de mão de obra de retaguarda (doravante mencionado como Backoffice) de serviço de empresa do setor bancário. Tradicionalmente, gráficos de controle tem sido utilizados para monitorar o processo produtivo de manufaturas, mas recentemente tem sido adotado para monitoramento de alguns serviços. Apesar

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Liu, Yu-han, and 劉俞含. "Stock Index Trend Prediction With XGBoost, Random Forest, Elastic Net—Evidence from TAIEX, Nikkei 225 Index, S&P500 Index." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/9w353s.

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碩士<br>國立中山大學<br>財務管理學系研究所<br>106<br>This paper applies four forecasting medels including XGBoost, Random Forest, Elastic Net and ensemble method to predict the one-month-ahead direction of the TAIEX, the Nikkei 225 Index and the S&P 500 Index. We employ macroeconomic variables, technical indicators and international stock index as models input features. The goal of this paper is to find out the most suitable forecasting model for the above three stock indexes. The major empirical results are as follows: 1. In terms of the TAIEX, XGBoost model is the best model for predicting the monthly trends

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Teng, Fei. "Optimal Multiresolution Quantization for Broadcast Channels with Random Index Assignment." Thesis, 2010. http://hdl.handle.net/10012/5410.

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Shannon's classical separation result holds only in the limit of infinite source code dimension and infinite channel code block length. In addition, Shannon theory does not address the design of good source codes when the probability of channel error is nonzero, which is inevitable for finite-length channel codes. Thus, for practical systems, a joint source and channel code design could improve performance for finite dimension source code and finite block length channel code, as well as complexity and delay. Consider a multicast system over a broadcast channel, where different end users typi

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HONG, JUN-WEI, and 洪君緯. "A Study of Taiwan Stock Index Trend Using Random Forest." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/58229446844397591760.

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碩士<br>靜宜大學<br>財務與計算數學系<br>104<br>In the stock market, there are many high-variability variables which affect the stock price. Therefore it is very complicate to predict the stock price volatility. How to develop an accurate prediction model efficiently is the goal of many researchers. In recent years, the methods of predicting the stock future trend are to diversify. The related researches about stochastic oscillator, text mining and ARMA model are proceeding, and so continued with machine learning algorithms, such as SVM and neural network, which can predict the change of the stock price. In

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Lo, Yung-Chia, and 羅永嘉. "Applying Random Forest Trees on the Prediction of Taiwan Stock Index Future." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/89979155684743178923.

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Lee, Sung-An, and 李崧安. "A Trading Strategy of Taiwan''s Stock Index by Random Forest." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6k4rxf.

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碩士<br>國立中山大學<br>財務管理學系研究所<br>106<br>This paper attempts to maintain the originality and breadth of data. I have incorporated as much as possible of all market data (on a daily basis) related to the Taiwan Capitalization Weighted Stock Index (TWII), and have combined the macroeconomic data of Taiwan and U.S. (on a monthly basis). Then I use these data to build the Random Forest model to forecast the daily direction of TWII. There are 11 categories of the data used in this paper. After data conversion and parameter optimization, a total of 711 variables were obtained. All 19 Random Forest models

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Coke, Geoffrey Bryan. "Random effects mixture models for clustering time series." Thesis, 2009. http://hdl.handle.net/1828/2806.

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In this thesis, we study cluster analysis of time series and develop a new mixture model which is effective for such analysis. Our study is motivated by a real life problem of clustering time series of electricity load (demand) for BC Hydro customers. BC Hydro collects electricity load data for selected customers for the purpose of grouping customers into homogeneous classes in terms of the load. Such homogeneous classes or clusters are useful for rate setting and long term generation capacity planning. The BC Hydro data set that we use in this thesis contains 923 load series representi

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Chu, Yi-Chieh, and 朱奕潔. "Testing Random Walk Hypothesis on Taiwan Index Futures Market by Discovering Knowledge in Opening Period." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/53922738494599483765.

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碩士<br>國立交通大學<br>資訊管理研究所<br>101<br>The market opening provides an excellent opportunity to observe and evaluate the market’s underlying directional conviction. With understanding of market conviction in opening period is helpful for investors to make decision for the day. For this reason, this research is based on market profile and traditional opening patterns to construct indicators applying neural network technically trying to find out the relation between the opening period on Taiwan Index Futures Market and trend of the day. Moreover, this research tests random walk hypothesis on TAIEX Fut

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Yang, Xiaolong. "Robust designs for the one-way random effects model using Q-estimators." Thesis, 2006. http://hdl.handle.net/1828/1945.

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Robust statistics is an extension of classical parametric statistics, which provides a safeguard against gross errors in experiments. Effectively, robustness properties of Uhlig's Q-estimators are examined and compared with that. of Rocke's Ai-estimators. In particular, the finite-sample implosion and explosion breakdown points are inves-tigated and introduced into constructing robust designs for the one-way random effects model. Optimal robust designs based on Uhlig's Q-estimation are similar to the ones based on Rocke's M-estimation. Ultimately. robust estimation procedures would provide ste

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Nandanwar, Sharad. "Recommendations in Complex Networks: Unifying Structure into Random Walk." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4950.

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Making recommendations or predicting links which are likely to exist in the future is one of the central problems in network science and graph mining. In spite of modern state-of- the-art approaches for link prediction, the traditional approaches like Resource Allocation Index, Adamic Adar still fi nd heavy use, because of their simplistic nature yet competitive performance. Our preliminary investigation reveals that a major fraction of missing links which are observed in the near future, are the links which are between one-hop distant nodes. Current \friend of friend is a friend" based

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Zhuang, Yan. "Efficient sampling from random web graph and its application." Thesis, 2008. http://hdl.handle.net/1828/1327.

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This thesis presents space-efficient algorithms to sample from random web graphs generated by two important stochastic graph models based on concept of copying: the linear copy model and the hostgraph model. The goal is to avoid constructing the entire random graph, and instead use an amount of space nearer to the desired (smaller) sample size. The efficiency of our algorithms is achieved by refraining from making unnecessary random decisions when constructing the sample. The construc- tion of a sample subgraph from a random graph with n nodes and k outgoing links on each node based on

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Hsieh, Li-Yu Shelley. "Ergodic theory of mulitidimensional random dynamical systems." Thesis, 2008. http://hdl.handle.net/1828/1253.

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Given a random dynamical system T constructed from Jablonski transformations, consider its Perron-Frobenius operator P_T. We prove a weak form of the Lasota-Yorke inequality for P_T and thereby prove the existence of BV- invariant densities for T. Using the Spectral Decomposition Theorem we prove that the support of an invariant density is open a.e. and give conditions such that the invariant density for T is unique. We study the asymptotic behavior of the Markov operator P_T, especially when T has a unique absolutely continuous invariant measure (ACIM). Under the assumption of uniquenes

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Kuei, Liu Wen, and 劉文貴. "Test of Random Walk Hypothesis in Taiwan Stock Index, Group Indexes, and Individual Stock Prices of Electronic Industry." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/43163320398559899995.

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Srivastava, Gautam. "Pseudorandom number generators using multiple sources of entropy." Thesis, 2006. http://hdl.handle.net/1828/2096.

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Randomness is an important part of computer science. A large group of work, both in theoretical and practical computer science, is dedicated to the study of whether true 'randomness' is necessary for a variety of applications and protocols to work. One of the main uses for randomness is in the generation of keys, used as a security measure for many cryptographic protocols. The main measure of randomness is achieved by looking at entropy, a measure of the disorder of a system. Nature is able to provide us with many sources that are high in entropy. However, many cryptographic protocols need so

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Planjery, Shiva Kumar. "Design of rate-compatible punctured repeat-accumulate codes." Thesis, 2007. http://hdl.handle.net/1828/2378.

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In present day wireless applications, especially for time-varying channels, we require flexible coding schemes that utilize a minimum of bandwidth and can support different code rates. In addition, we require coding schemes that are simple in terms of complexity but give good performance. Recently a special class of turbo-like codes called repeat accumulate (RA) codes were proposed. These codes are extremely simple in terms of complexity compared to turbo or LDPC codes and have been shown to have decoding thresholds close to the capacity of the AWGN channel. In this thesis, we propose rate-com

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Cvrčková, Iveta. "Možnosti funkčního hodnocení stavu pacientů po prodělané akutní CMP v ČR." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-324824.

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Title: Possibilities of functional Evaluation of Patients after acute cerebral Palsy in Czech Republic Objectives: The main objective of this study was to describe the problems of functional assessment of patiens after stroke. Another objektive was to determine and compare the properties ofthe most commonly used functional measures designed for stroke,in our country. Methods: This work is theoretical - research work, which is the theoretical part of the period from September 2012 to June 2013 when retrieving data from literature sources using advanced targeted keywords and thein hotkey in data

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Prata, Joel Adilson da Costa. "Um agrupamento de turistas: modelação adequada?" Master's thesis, 2011. http://hdl.handle.net/10071/4578.

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A zona turística rural no norte de Portugal é uma das áreas escolhidas por alguns turistas que visitam o nosso País. A auto-imagem desses turistas pode aferir-se mediante atributos capazes de caracterizar também o destino visitado. Neste trabalho aplica-se a metodologia de estimação de modelos de mistura finita para constituição e caracterização dos segmentos de turistas com base em atributos de autoimagem. Na modelação atende-se ao tipo de escala – Semântica Diferencial – de dois modos distintos: 1 – as variáveis base são modeladas como métricas e usada uma mistura de distribuições nor

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Wei, Yuhong. "Mixture Model Averaging for Clustering." Thesis, 2012. http://hdl.handle.net/10214/3538.

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Model-based clustering is based on a finite mixture of distributions, where each mixture component corresponds to a different group, cluster, subpopulation, or part thereof. Gaussian mixture distributions are most often used. Criteria commonly used in choosing the number of components in a finite mixture model include the Akaike information criterion, Bayesian information criterion, and the integrated completed likelihood. The best model is taken to be the one with highest (or lowest) value of a given criterion. This approach is not reasonable because it is practically impossible to decide wha

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Muwawa, Jean Nestor Dahj. "Data mining and predictive analytics application on cellular networks to monitor and optimize quality of service and customer experience." Diss., 2018. http://hdl.handle.net/10500/25875.

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This research study focuses on the application models of Data Mining and Machine Learning covering cellular network traffic, in the objective to arm Mobile Network Operators with full view of performance branches (Services, Device, Subscribers). The purpose is to optimize and minimize the time to detect service and subscriber patterns behaviour. Different data mining techniques and predictive algorithms have been applied on real cellular network datasets to uncover different data usage patterns using specific Key Performance Indicators (KPIs) and Key Quality Indicators (KQI). The following too

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Paditz, Ludwig. "Beiträge zur expliziten Fehlerabschätzung im zentralen Grenzwertsatz." Doctoral thesis, 1988. https://tud.qucosa.de/id/qucosa%3A26930.

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In der Arbeit wird das asymptotische Verhalten von geeignet normierten und zentrierten Summen von Zufallsgrößen untersucht, die entweder unabhängig sind oder im Falle der Abhängigkeit als Martingaldifferenzfolge oder stark multiplikatives System auftreten. Neben der klassischen Summationstheorie werden die Limitierungsverfahren mit einer unendlichen Summationsmatrix oder einer angepaßten Folge von Gewichtsfunktionen betrachtet. Es werden die Methode der charakteristischen Funktionen und besonders die direkte Methode der konjugierten Verteilungsfunktionen weiterentwickelt, um quantitative Aussa

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(8300103), Shams R. Rahmani. "Digital Soil Mapping of the Purdue Agronomy Center for Research and Education." Thesis, 2020.

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This research work concentrate on developing digital soil maps to support field based plant phenotyping research. We have developed soil organic matter content (OM), cation exchange capacity (CEC), natural soil drainage class, and tile drainage line maps using topographic indices and aerial imagery. Various prediction models (universal kriging, cubist, random forest, C5.0, artificial neural network, and multinomial logistic regression) were used to estimate the soil properties of interest.

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Tafirenyika, Blessing. "The impact of regional integration on socio-economic development in Southern African Customs Union countries." Thesis, 2020. http://hdl.handle.net/10500/27164.

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Regional integration gained popularity and is prioritised globally, especially in developing economies, including those on the African continent. This is based on its potential to accelerate trade, stimulate economic growth, and increase access to basic necessities and to induce a sustainable increase in economic output and improved standards of living. Regional integration in the context of developing economies is entirely implicit. Modern literature observes it as a policy option for dealing with a wide variety of issues related to politics, economic factors, and societal welfare. The

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Malinowski, Alexander. "Financial Models of Interaction Based on Marked Point Processes and Gaussian Fields." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-F0EF-6.

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