Tesis sobre el tema "Regressionsmodel"
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Fjellström, Albert y Christian Martincu. "Spelartransfers effekt på börsnoterade fotbollsklubbars aktiekurs". Thesis, Högskolan Kristianstad, Fakulteten för ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-22131.
Texto completoLieres, und Wilkau Carsten von. "Test auf Additivität im nichtparametrischen Regressionsmodell". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962676411.
Texto completoWellmann, Robin. "On data depth with application to regression models and tests /". Berlin : Logos-Verl, 2008. http://d-nb.info/988446421/04.
Texto completoStegare, Martin y Mohammed Issa. "Datadriven Prognostisering : En Regressionsmodell för Bättre Beslutsfattande inom Kollektivtrafiken". Thesis, KTH, Matematisk statistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-252744.
Texto completoWhy is it that the number of travellers in Stockholm's public transportation differs from day to day? Is the difference arbitrary or do factors such as population, temperature, weather conditions, months, or even weekdays have a significant role in this variation? This thesis aims to explore these external variables and their effect on public transportation, as well as how this type of data driven information can result in well supported decisions. The method applied to the study was multiple linear regression and the data used was retrieved from Trafikförvaltningen, SMHI, and SCB. The study concluded that the variations in the number of travellers in Stockholm's public transportation is up to 84\% explained by population, as well as month and weekday.
Neumeyer, Natalie. "Vergleich nichtparametrischer Regressionsfunktionen unter Verwendung stochastischer Prozesse". [S.l.] : [s.n.], 2001. http://www-brs.ub.ruhr-uni-bochum.de/netahtml/HSS/Diss/NeumeyerNatalie.
Texto completoSchnoor, Britta. "Modellauswahlkriterien in der Regressionsanalyse ohne Wiederholungen der zu erklärenden Variablen /". Göttingen : V. Schwerin, 1995. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=006765330&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoIlouga, Pierre Emmanuel. "Asymptotischer Vergleich höherer Ordnung adaptiver linearer Schätzer in Regressionsmodellen". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=961727020.
Texto completoLöwendick, Martin. "On smoothing under bounds and geometric contraints". [S.l. : s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=959981020.
Texto completoKus, Christian. "Erkennung von Adressenausfallrisiken Kontodatenanalyse unter Einsatz binärer logistischer Regressionsmodelle". Hamburg Kovač, 2010. http://d-nb.info/100154739X/04.
Texto completoPrescher, Martin. "Robuste Risiko-Optimierung mit multi-objective neural networks /". Berlin : Logos-Verl, 2008. http://d-nb.info/99137911X/04.
Texto completoLeisch, Friedrich. "FlexMix: A general framework for finite mixture models and latent class regression in R". SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2003. http://epub.wu.ac.at/712/1/document.pdf.
Texto completoSeries: Report Series SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
Gandy, Axel. "Directed model checks for regression models from survival analysis". Berlin Logos-Ver, 2005. http://deposit.ddb.de/cgi-bin/dokserv?id=2766731&prov=M&dok_var=1&dok_ext=htm.
Texto completoRosberg, Andreas. "Torkning av sågspån vid pneumatisk transport : Praktiska mätningar och modellering". Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36336.
Texto completoWood fuels are the foundation for renewable energy in Sweden. The raw material that is used to produce pellets, such as sawdust, usually has a moisture content of 50 percent. Drying material that is used to make pellets is expensive and the energy that is used to dry pellets is a major part of the costs. Drying of hygroscopic substances like sawdust can be divided into three parts. Steady moisture transport from the material that is drying characterizes the first drying part. The second drying part starts when there is a reduced moisture transport due to dry spots occurring on the material and the third drying part is when the moisture transport is at the lowest and transports through diffusion because the surface of the material is dried out. By combining a packed moving bed and a pneumatic dryer the drying can be more efficient because at the last drying part the packed moving bed is less efficient and the pneumatic dryer is used instead. In a pneumatic dryer heated air is used to dry the sawdust at the same time as it transports the sawdust through the dryer. At Karlstads University there is a pneumatic dryer for drying of sawdust for laboratory use. In this thesis an effect balance on the dryer was made when the air temperature was 150 °C. The effect for drying sawdust and the effect that the heated air was emitting to the sawdust was compared. Three different kinds of sawdust were used: fresh, rewetted and pressed sawdust. In total 36 drying tests were made. The performance measurements SMER and SPC were used to compare how the performance changed when drying these three kinds of sawdust. A model to predict the outgoing moisture content of the sawdust was built in the calculation program Excel to simplify future tests of the dryer. The air flow that was calculated for the dryer was too low and was increased with 12 percent. By doing this only one effect balance was needed to be cut out when the effect difference for drying sawdust and the heated air was more than 15 percent. The highest SMER can be found when the air velocity is 8 m/s and the frequency of the feeder on the dryer is 13 Hz, and 12 m/s when the feeder has a frequency of 26 Hz. The lowest SPC can be found when the air velocity is 6 m/s for both frequencies. By using correction equations to the model the outgoing moisture content of the sawdust from practical measurements coincide with the result from the model with 0,8 percent accuracy. The model can be used when the air velocity is between 6-14 m/s, the feeder is at 13-26 Hz and when the initial moisture content of the sawdust being sent into the dryer is 20 percent. When the initial moisture content of the sawdust being sent into the dryer is 20-50 percent, correction equations are needed and available when the air velocity is 8 and 12 m/s, and for a material flow of 13 and 26 Hz. The SMER for fresh sawdust show tendencies of being lower than the SMER for the other two kinds of sawdust. More tests need to be done because of limited data of drying pressed and fresh sawdust. If the same pattern is repeated it may be of interest to study more about the energy flow when pressing sawdust to see if this process is more energy efficient than if the sawdust is not pretreated. The reason SPC is lower with lower air velocity is that the fan needs to work harder when the air flow is rising. SPC drops when the drying temperature is rising because the pressure difference over the fan is lowered. The model works well and can be used to plan tests at 150 °C in case further comparison between fresh, pressed and rewetted sawdust is wanted.
Westerlund, Elisabeth. "Trendanalys av klimatdata med regressionsmetoder". Thesis, Uppsala universitet, Matematiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-270156.
Texto completoData samlas in inom en rad olika samhällsområden. Ett av dessa områden är klimat. Under de senaste åren har diskussionen om klimatförändringars existens och dess påverkan på vår jord varit högst aktuell och intresseväckande. European Climate & Assessment Project förmedlar data kring klimat och deras data har använts i detta arbete för att komma ett steg närmare en sanning kring klimatförändringar. Detta examensarbete är ett bidrag till klimatforskningen. Syftet var att undersöka trender i tidsserier för vald indikator och stationer. Indikatorn Consecutive Summer Days valdes och stationerna Stockholm och München undersöktes. Det största fokuset och tiden i arbetet har lagts på den statistik som använts för att undersöka syftet. För att kunna undersöka trender var slutsats kring lämplig fördelning för data samt oberoende i den förklarande variabeln nödvändigt att säkerställas med statistiska metoder. För att komma fram till slutsatsen anpassades den Negativa Binomialfördelningen. Ett antagande om oberoende i den förklarande variabeln kunde även göras. Regressionsmodeller kunde därmed anpassas på data för att undersöka eventuella trender. Resultaten visade en uppåtgående trend i den valda indikatorn i både Stockholm och München. Det var dock inte möjligt att dra en slutsats kring om denna trend är naturlig eller om den beror på människans konsumtion av jordens resurser. Det var inte heller möjligt att dra en generell slutsats kring klimatförändringar då arbetet enbart undersöker en indikator på två stationer. Metoden som använts och resultaten som genererats kan dock användas som ett stöd i framtida studier inom klimatforskning eller annat intressant område.
Wellmann, Robin. "On data depth with application to regression models and tests". Berlin Logos-Verl, 2007. http://d-nb.info/988446421/04.
Texto completoGandy, Axel. "Directed model checks for regression models from survival analysis /". Berlin : Logos-Ver, 2006. http://deposit.ddb.de/cgi-bin/dokserv?id=2766731&prov=M&dok_var=1&dok_ext=htm.
Texto completoTrenkler, Dietrich. "Verallgemeinerte Ridge Regression : eine Untersuchung von theoretischen Eigenschaften und der Operationalität verzerrter Schätzer im linearen Modell /". Frankfurt a. M : Hain, 1986. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015371082&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoGrimm, Thomas. "Revisionsaufwand von börsenkotierten Schweizer Unternehmen". St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/02600898002/$FILE/02600898002.pdf.
Texto completoErni, Stephan. "Ratingagenturen Reproduktion von Corporate Ratings mittels objektiver Finanzkennzahlen /". St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/04199790001/$FILE/04199790001.pdf.
Texto completoSchmidt, Dennis [Verfasser]. "Versuchsplanung für nichtlineare multiple Regressionsmodelle mit Anwendung auf zensierte Daten / Dennis Schmidt". Magdeburg : Universitätsbibliothek, 2017. http://d-nb.info/1138276537/34.
Texto completoDorn, Manuela [Verfasser] y Melanie [Akademischer Betreuer] Birke. "Tests auf Exogenität im funktionalen linearen Regressionsmodell unter schwacher Stationarität / Manuela Dorn ; Betreuer: Melanie Birke". Bayreuth : Universität Bayreuth, 2021. http://d-nb.info/1235068838/34.
Texto completoNolte, Sandra. "Measurement error in nonlinear models an application to disclosure limitation techniques". Wien Zürich Berlin Münster Lit, 2008. http://d-nb.info/1001427807/04.
Texto completoNilsson, Viktor y Kenny Söderberg. "Regionala skillnader i arbetslöshet : En empirisk studie över Sveriges län 2002-2012". Thesis, Linköpings universitet, Nationalekonomi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-107743.
Texto completoZeileis, Achim y Kurt Hornik. "Generalized M-Fluctuation Tests for Parameter Instability". SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2003. http://epub.wu.ac.at/716/1/document.pdf.
Texto completoSeries: Report Series SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
Karlsson, Andreas. "Att testa normalitet och heteroskedasticitet i en linjär regressionsmodell : En empirisk jämförelse mellan normalitets-, heteroskedasticitets- och kombinationstest". Thesis, Uppsala universitet, Statistik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188685.
Texto completoStahl, Christoph. "Ein stark konsistenter Kleinst-Quadrate-Schätzer in einem linearen Fuzzy-Regressionsmodell mit fuzzy Parametern und fuzzy abhängigen Variablen". [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972312188.
Texto completoFelber, Tina [Verfasser]. "Universell L1-konsistente Schätzung der Dichte der Fehler in einem Regressionsmodell und einer stationär ergodischen Zeitreihe / Tina Felber". Aachen : Shaker, 2013. http://d-nb.info/1051574536/34.
Texto completoLager, Kristoffer. "Utveckling och utvördering av statistiska metoder för att öka träffsäkerheten hos lokala vindprognoser". Thesis, Uppsala University, Department of Earth Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9136.
Texto completoWind is used as an energy source all over the world. To be able to use this effectively, there is a need for as good forecasts and forecast models as possible. One of these models is Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS®) that is used to calculate short time forecasts. This model is used here to calculate wind speeds at two different areas in Västra Götaland, Bengtsfors and Vänersborg. There are also wind measurements with SODAR stations for these areas. The first part of this work is to investigate the difference between two model resolutions, 36 and 12 km, for the model results compared with the measurements. The comparison is done by calculating some different statistical values. The results of these parameters show that the difference between the two resolutions is fairly small and that the lower resolution gives a slightly better result.
The second and major part of this work is to use two different regression models to adjust the result of the forecast models to the result of the measurements. These regression models will then be possible to use even when there are no measurements to compare with. The idea of these regression models is to find a way to describe the difference between the result of the forecast model and the SODAR measurements. This difference is then subtracted from the result of the forecast model so that you get an adjustment and more accurate result. The first regression model calculates the difference according to time of the day, the other model calculates the difference according to the wind speed.
Furthermore, the measurements used are taken from 75 meters height above the ground. These are then compared to some different results from the forecast model, for example different model heights and different resolutions, and also the model results adjusted with the regression models. The comparison is done by calculating the same statistic values as before, both with and without an adjustment with the regression models, and also to look at histograms that show the distribution of the difference. It is shown that with the regression adjustment, there is a clear improvement of the statistical values compared to the original results of the forecasts. For example the value of the absolute mean difference is reduced with approximately 0.4-0.7 m/s with an adjustment of the regression model. The histograms clearly show that a more even distribution occurs after the adjustment with the regression models. From having a major part of the differences at 1-2 m/s to now having the major part at around 0 m/s and furthermore there is also generally a lower difference between the measurements and the results from the forecast model.
Maquignon, Axel. "Testing for Predictability Methods of Least Autocorrelation /". St. Gallen, 2006. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/02914406001/$FILE/02914406001.pdf.
Texto completoDori, Fabian. "Wechselkursprognose mit neuronalen Netzen und linearen Modellen Eine empirische Analyse /". St. Gallen, 2005. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/01649615001/$FILE/01649615001.pdf.
Texto completoMeyer, David, Friedrich Leisch y Kurt Hornik. "Benchmarking Support Vector Machines". SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2002. http://epub.wu.ac.at/1578/1/document.pdf.
Texto completoSeries: Report Series SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
Wilk, Adrian Verfasser], Joachim [Akademischer Betreuer] [Kunert y Christine [Akademischer Betreuer] Müller. "D-Effzienzen von Versuchsplänen im einfachen linearen Regressionsmodell bei korrelierten Fehlern / Adrian Wilk. Betreuer: Joachim Kunert. Gutachter: Christine Müller". Dortmund : Universitätsbibliothek Dortmund, 2013. http://d-nb.info/1099438772/34.
Texto completoAlt, Raimund. "Multiple hypotheses testing in the linear regression model with applications to economics and finance /". Göttingen : Cuvillier, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=013081924&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoStammen, Karsten. "Bewertung des Schwingungskomforts in PKW mit Hilfe von Regressionsmodellen und künstlichen neuronalen Netzen /". Düsseldorf : VDI-Verl, 2009. http://d-nb.info/999473514/04.
Texto completoKrause, Andreas Eckhard. "Computerintensive statistische Methoden : Gibbs Sampling in Regressionsmodellen /". Stuttgart ; Jena : G. Fischer, 1994. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=006405906&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoGeissbühler, Urs. "Statistische Auswertung der Kolikfälle aus den Jahren 1982 und 1992 an der Pferdeklinik des Tierspitals Bern unter Einbezug multivariater Regressionsmodelle /". [S.l.] : [s.n.], 1997. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Texto completoSuhr, Sebastian. "Bondrenditen und Mindestkapitalanforderungen für Banken /". Wiesbaden : Gabler, 2010. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=018939924&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoSuhr, Sebastian. "Bondrenditen und Mindestkapitalanforderungen für Banken". Wiesbaden Gabler, 2007. http://d-nb.info/999240692/04.
Texto completoBauer, Nikola Maria Christina [Verfasser] y Leopold [Akademischer Betreuer] Eberhart. "Mortalitätsrate diabetischer und nicht diabetischer Intensivstationspatienten – Analyse relevanter Risikofaktoren mit Hilfe eines Cox-Regressionsmodells / Nikola Maria Christina Bauer. Betreuer: Leopold Eberhart". Marburg : Philipps-Universität Marburg, 2015. http://d-nb.info/1080299203/34.
Texto completoHuschens, Stefan. "Einführung in die Ökonometrie". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-222629.
Texto completoProkopenko, Sergiy. "Hierarchical binary spatial regression models with cluster effects". [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972223851.
Texto completoFocke, Stefan. "Einfluss der Region und des Verkehrskontextes auf die Häufigkeit von Straßenverkehrsunfällen". Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-226239.
Texto completoRößler, Anne-Sophie [Verfasser] y Gabriela [Akademischer Betreuer] Knubben-Schweizer. "Grundlage für eine Beurteilung des Transmissionsrisikos von Fasciola hepatica : logistische Regressionsmodelle zur Vorhersage des Auftretens von Galba truncatula in der Schweiz / Anne-Sophie Rößler ; Betreuer: Gabriela Knubben-Schweizer". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1119073693/34.
Texto completoSchade-Weskott, Eva [Verfasser] y Gabriela [Akademischer Betreuer] Knubben-Schweizer. "Überprüfung eines logistischen Regressionsmodells zur Berechnung des Vorkommens von Galba truncatula als Grundlage zur kartographischen Darstellung von Risikogebieten für das Auftreten von Fasciola hepatica in Bayern / Eva Schade-Weskott ; Betreuer: Gabriela Knubben-Schweizer". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1191098265/34.
Texto completoTenggren, Johanna y Tonny Tran. "Hur mäter vi det omätbara?" Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23231.
Texto completoDifferent real estates have different value, depending upon several factors. This essay aims toanalyse some of these values bearing factors and how they relate to properties in Helsingborg.Beside these factors another factor, called the pleasure factor, will be analysed in an attempt todetermine how individual preferences affects the value. The analysis will be based on statisticmaterial that will be processed with the hedonic price model. The bid-rent model will beapplied to the city and to its areas, to help create an understanding of the location factor. Adepression of psychology and urban economics will contribute to both physical andpsychological aspects of the analysis. The results that will be presented will show that inconsideration to price we can't just tend to the physical aspects but must also consider thepsychological aspects for each individual.
Norman, Therese y Michaela Norrman. "Progresa and its Impact on School Attendance : Disparities between Mexican rural and urban areas". Thesis, Jönköping University, JIBS, Economics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-11997.
Texto completoThe aim of this paper is to analyze the impact of a conditional cash transfer program, Progresa, on school attendance in Mexican rural and urban areas. Within recent years, conditional cash transfer programs have become one of the most accepted remedies for poverty alleviation in many countries. Progresa was developed as an economic experi-ment, with randomized selection process, treatment groups and control croups. For this reason, the impact of Progresa is ideal for economic analysis. There are clear evidence of disparities between urban and rural school attendance rates in Mexico, hence the pro-gram’s effect on school attendance rates have been studied in the two regions. There are several reasons why one would expect different outcomes of the program on school at-tendance in rural and urban areas. Expected returns to education and the opportunity cost of investment in schooling in different regions are thought to affect the household’s optimization problem differently. The impact of Progresa on school attendance rates is estimated by a logit regression model analyzing household data within the household optimization framework. Mainly, Progresa has a positive impact on children’s school at-tendance. However, it may be concluded that Progresa has no significant effect for older children in rural areas. This result is assumed to be explained by the different conditions poor families face in different regions. If rural households’ optimization problem indeed looks different; this might suggest that the design of conditional cash transfer programs such as Progresa is crucially important depending on the region of implementation.
Syftet med denna uppsats är att analysera det villkora välfärdsprogrammet Progresa och dess effekt på skolnärvaro i mexikanska rurala och urbana områden. Under senare år har villkora välfärdsprogram kommit att vara en av de mest accepterade formerna av bistånd för att minska fattigdom i de flesta länder. Progresa utvecklades utifrån ett ekonomiskt experiment, med en slumpmässig urvalsprocess samt en experiment- och kontrollgrupp. Med anledning av detta är Progresa ett utmärkt program att studera för ekonomisk analys. Skolnärvaron i mexikanska rurala och urbana områden varierar stort och av denna anledning har effekten av Progresa studerats i de båda regionerna. Det finns många anledningar till varför vi bör förvänta oss avvikande utfall. En förklaring kan vara att utbildningens förväntade avkastning och alternativkostnad påverkar hushållens optimeringsproblem olika. Effekten av Progresa på skolnärvaro är beräknad med en logit regressionsmodell där hushållsdata analyseras inom ramen för hushållets optimeringsproblem. Huvudsakligen har Progresa en positiv effekt på barns skolnärvaro. Dock, och vad som bör noteras, är det faktum att Progresa inte har en signifikant påverkan på äldre rurala barns skolnärvaro. Detta resultat antas förklaras av fattiga familjers olika förutsättningar i rurala och urbana områden. I det fall rurala familjers optimeringsproblem skiljer sig från urbana familjers optimeringsproblem, torde detta innebära att strukturen av ett villkorligt biståndsprogram, så som Progresa, är av största vikt och bör anpassas ändamålsenligt.
Jähnisch, Michael. "Asymptotische Aequivalenz fuer ein Modell unabhaengiger nicht identisch verteilter Daten". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 1999. http://dx.doi.org/10.18452/14363.
Texto completoThe thesis "Asymptotic Equivalence of Experiments for a Model with Independent and Nonidentically distributed Observations" deals with the theory of experiments that was developped by Le Cam. \\ Le Cam defined the so called $\Delta$-distance between experiments. If this distance is small for two given models it means that their statistical properties are similar. We call two sequences of experiments asymptotic equivalent if their $\Delta$-distance converges to zero.\\ In this thesis we prove asymptotic equivalence between a model with independent and nonidentically distributed observations and a Gaussian shift model. The i-th observation in the first model is distributed according to a density $h(i/n,.)$ where $h$ is a bunch of densities on the unit interval. This means that we approximate a complicated statistical experiment by a simpler one, namely a Gaussian shift model. The densites h belong to a H\"older ball such that we have a nonparametric problem. Our result can also be viewed as a nonparametric version of the LAN property which was also defined by Le Cam. An important tool for proving our result is the coupling of stochastic processes, i.e. the construction of processes on a common probability space such that they are close in a strong sense. In the second part of the thesis we prove a functional version of such a coupling result for the sequential empirical process and the Kiefer-M\"uller process by using the Hungarian construction.
Maier, Marco J. "DirichletReg: Dirichlet Regression for Compositional Data in R". WU Vienna University of Economics and Business, 2014. http://epub.wu.ac.at/4077/1/Report125.pdf.
Texto completoSeries: Research Report Series / Department of Statistics and Mathematics
Laubrock, Jochen. "Proportional slowing in old adults is modulated by episodic memory demands : an investigation of age-related slowing using compatible and arbitrary stimulus-response mappings". Phd thesis, Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/187/.
Texto completoThe age-by-complexity effect is the dominant empirical pattern in cognitive aging. The current report investigates whether a specific high-level mechanism---an age-related decrease in the reliability of episodic accumulators---can account for the age-by-complexity-effect, which is commonly assumed to be caused by an unspecific, low-level deficit. Groups of younger and older adults are compared in six reaction time experiments, using orthogonal manipulations of early cognitive difficulty (e.g., Stroop condition) and episodic demands (e.g., stimulus-response mapping). The predicted three-way interaction of age and the two factors was observed fairly consistently across experiments. A modified Brinley analysis shows that different regression slopes in old-young-space are required for conditions with low and high episodic difficulty. As a methodological contribution, a Brinley regression model following from certain simple processing assumptions is developed. It is shown that in contrast to a standard Brinley meta-analysis, the regression slopes in this model are not influenced by theoretically un-interesting between-experiment variance.
Liu, Lanfa, Manfred Buchroithner, Min Ji, Yunyun Dong y Rongchung Zhang. "Quantitative Retrieval of Organic Soil Properties from Visible Near-Infrared Shortwave Infrared (Vis-NIR-SWIR) Spectroscopy Using Fractal-Based Feature Extraction". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-220555.
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