Thèses sur le sujet « Clustering analysi »
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Zreik, Rawya. « Analyse statistique des réseaux et applications aux sciences humaines ». Thesis, Paris 1, 2016. http://www.theses.fr/2016PA01E061/document.
Texte intégralOver the last two decades, network structure analysis has experienced rapid growth with its construction and its intervention in many fields, such as: communication networks, financial transaction networks, gene regulatory networks, disease transmission networks, mobile telephone networks. Social networks are now commonly used to represent the interactions between groups of people; for instance, ourselves, our professional colleagues, our friends and family, are often part of online networks, such as Facebook, Twitter, email. In a network, many factors can exert influence or make analyses easier to understand. Among these, we find two important ones: the time factor, and the network context. The former involves the evolution of connections between nodes over time. The network context can then be characterized by different types of information such as text messages (email, tweets, Facebook, posts, etc.) exchanged between nodes, categorical information on the nodes (age, gender, hobbies, status, etc.), interaction frequencies (e.g., number of emails sent or comments posted), and so on. Taking into consideration these factors can lead to the capture of increasingly complex and hidden information from the data. The aim of this thesis is to define new models for graphs which take into consideration the two factors mentioned above, in order to develop the analysis of network structure and allow extraction of the hidden information from the data. These models aim at clustering the vertices of a network depending on their connection profiles and network structures, which are either static or dynamically evolving. The starting point of this work is the stochastic block model, or SBM. This is a mixture model for graphs which was originally developed in social sciences. It assumes that the vertices of a network are spread over different classes, so that the probability of an edge between two vertices only depends on the classes they belong to
Karim, Ehsanul, Sri Phani Venkata Siva Krishna Madani et Feng Yun. « Fuzzy Clustering Analysis ». Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2165.
Texte intégralAl-Razgan, Muna Saleh. « Weighted clustering ensembles ». Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3212.
Texte intégralVita: p. 134. Thesis director: Carlotta Domeniconi. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Information Technology. Title from PDF t.p. (viewed Oct. 14, 2008). Includes bibliographical references (p. 128-133). Also issued in print.
Leisch, Friedrich. « Bagged clustering ». SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 1999. http://epub.wu.ac.at/1272/1/document.pdf.
Texte intégralSeries: Working Papers SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
Gupta, Pramod. « Robust clustering algorithms ». Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39553.
Texte intégralXu, Tianbing. « Nonparametric evolutionary clustering ». Diss., Online access via UMI:, 2009.
Trouver le texte intégralShortreed, Susan. « Learning in spectral clustering / ». Thesis, Connect to this title online ; UW restricted, 2006. http://hdl.handle.net/1773/8977.
Texte intégralPtitsyn, Andrey. « New algorithms for EST clustering ». Thesis, University of the Western Cape, 2000. http://etd.uwc.ac.za/index.php?module=etd&.
Texte intégralKarimi, Kambiz. « Clustering analysis of residential loads ». Kansas State University, 2016. http://hdl.handle.net/2097/32616.
Texte intégralDepartment of Electrical and Computer Engineering
Anil Pahwa
Understanding electricity consumer behavior at different times of the year and throughout the day is very import for utilities. Though electricity consumers pay a fixed predetermined amount of money for using electric energy, the market wholesale prices vary hourly during the day. This analysis is intended to see overall behavior of consumers in different seasons of the year and compare them with the market wholesale prices. Specifically, coincidence of peaks in the loads with peak of market wholesale price is analyzed. This analysis used data from 101 homes in Austin, TX, which are gathered and stored by Pecan Street Inc. These data were used to first determine the average seasonal load profiles of all houses. Secondly, the houses were categorized into three clusters based on similarities in the load profiles using k-means clustering method. Finally, the average seasonal profiles of each cluster with the wholesale market prices which was taken from Electric Reliability Council of Texas (ERCOT) were compared. The data obtained for the houses were in 15-min intervals so they were first changed to average hourly profiles. All the data were then used to determine average seasonal profiles for each house in each season (winter, spring, summer and fall). We decided to set three levels of clusters). All houses were then categorized into one of these three clusters using k-means clustering. Similarly electricity prices taken from ERCOT, which were also on 15-min basis, were changed to hourly averages and then to seasonal averages. Through clustering analysis we found that a low percent of the consumers did not change their pattern of electricity usage while the majority of the users changed their electricity usage pattern once from one season to another. This change in usage patterns mostly depends on level of income, type of heating and cooling systems used, and other electric appliances used. Comparing the ERCOT prices with the average seasonal electricity profiles of each cluster we found that winter and spring seasons are critical for utilities and the ERCOT price peaks in the morning while the peak loads occur in the evening. In summer and fall, on the other hand, ERCOT price and load demand peak at almost the same time with one or two hour difference. This analysis can help utilities and other authorities make better electricity usage policies so they could shift some of the load from the time of peak to other times.
FARMANI, MOHAMMAD REZA. « Clustering analysis using Swarm Intelligence ». Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266871.
Texte intégralCole, Rowena Marie. « Clustering with genetic algorithms ». University of Western Australia. Dept. of Computer Science, 1998. http://theses.library.uwa.edu.au/adt-WU2003.0008.
Texte intégralZhang, Yiqun. « Advances in categorical data clustering ». HKBU Institutional Repository, 2019. https://repository.hkbu.edu.hk/etd_oa/658.
Texte intégralChan, Alton Kam Fai. « Hyperplane based efficient clustering and searching / ». View abstract or full-text, 2003. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202003%20CHANA.
Texte intégralRazafindramanana, Octavio. « Low-dimensional data analysis and clustering by means of Delaunay triangulation ». Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4033/document.
Texte intégralThis thesis aims at proposing and discussing several solutions to the problem of low-dimensional point cloudanalysis and clustering. These solutions are based on the analysis of the Delaunay triangulation.Two types of approaches are presented and discussed. The first one follows a classical three steps approach:1) the construction of a proximity graph that embeds topological information, 2) the construction of statisticalinformation out of this graph and 3) the removal of pointless elements regarding this information. The impactof different simplicial complex-based measures, i.e. not only based on a graph, is discussed. Evaluation is madeas regards point cloud clustering quality along with handwritten character recognition rates. The second type ofapproaches consists of one-step approaches that derive clustering along with the construction of the triangulation
Cui, Yingjie. « A study on privacy-preserving clustering ». Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4357225X.
Texte intégralKübler, Bernhard Christian. « Risk classification by means of clustering ». Frankfurt, M. Berlin Bern Bruxelles New York, NY Oxford Wien Lang, 2009. http://d-nb.info/998737291/04.
Texte intégralChang, Soong Uk. « Clustering with mixed variables / ». [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19086.pdf.
Texte intégralZhou, Dunke. « High-dimensional Data Clustering and Statistical Analysis of Clustering-based Data Summarization Products ». The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338303646.
Texte intégralLee, King-for Foris. « Clustering uncertain data using Voronoi diagram ». Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43224131.
Texte intégralAlbarakati, Rayan. « Density Based Data Clustering ». CSUSB ScholarWorks, 2015. https://scholarworks.lib.csusb.edu/etd/134.
Texte intégralMcClelland, Robyn L. « Regression based variable clustering for data reduction / ». Thesis, Connect to this title online ; UW restricted, 2000. http://hdl.handle.net/1773/9611.
Texte intégralMadureira, Erikson Manuel Geraldo Vieira de. « Análise de mercado : clustering ». Master's thesis, Instituto Superior de Economia e Gestão, 2016. http://hdl.handle.net/10400.5/13122.
Texte intégralO presente trabalho tem como objetivo descrever as atividades realizadas durante o estágio efetuado na empresa Quidgest. Tendo a empresa a necessidade de estudar as suas diversas vertentes de negócio, optou-se por extrair e identificar as informações presentes no banco de dados da empresa. Para isso, foi utilizado um processo conhecido na análise de dados denominado por Extração de Conhecimento em Bases de Dados (ECBD). O maior desafio na utilização deste processo deveu-se há grande acumulação de informação pela empresa, que se foi intensificando a partir de 2013. Das fases do processo de ECBD, a que tem maior relevância é o data mining, onde é feito um estudo das variáveis caracterizadoras necessárias para a análise em foco. Foi escolhida a técnica de análise cluster da fase de data mining para que que toda análise possa ser eficiente, eficaz e se possa obter resultados de fácil leitura. Após o desenvolvimento do processo de ECBD, foi decidido que a fase de data mining podia ser implementada de modo a facilitar um trabalho futuro de uma análise realizada pela empresa. Para implementar essa fase, utilizaram-se técnicas de análise cluster e foi desenvolvida um programa em VBA/Excel centrada no utilizador. Para testar o programa criado foi utilizado um caso concreto da empresa. Esse caso consistiu em determinar quais os atuais clientes que mais contribuíram para a evolução da empresa nos anos de 2013 a 2015. Aplicando o caso referido no programa criado, obtiveram-se resultados e informações que foram analisadas e interpretadas.
This paper aims to describe the activities performed during the internship made in Quidgest company. Having the company need to study their various business areas, it was decided to extract and identify the information contained in the company's database. For this end, we used a process known in the data analysis called for Knowledge Discovery in Databases (KDD). The biggest challenge in using this process was due to their large accumulation of information by the company, which was intensified from 2013. The phases of the KDD process, which is the most relevant is data mining, where a study of characterizing variables required for the analysis is done. The cluster analysis technique of data mining phase was chosen for that any analysis can be efficient, effective and could provide results easy to read. After the development of the KDD process, it was decided that the data mining phase could be automated to facilitate future work carried out by the company. To automate this phase, cluster analysis techniques were used and was developed a program in VBA/Excel user-centered. To test the created program we used a specific case of the company. This case consisted in determining the current customers that have contributed to the company's evolution during the years 2013-2015. The application of the program has revealed useful information that has been analyzed and interpreted.
info:eu-repo/semantics/publishedVersion
Vohra, Neeru Rani. « Three dimensional statistical graphs, visual cues and clustering ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ56213.pdf.
Texte intégralCui, Yingjie, et 崔英杰. « A study on privacy-preserving clustering ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4357225X.
Texte intégralXiong, Yimin. « Time series clustering using ARMA models / ». View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?COMP%202004%20XIONG.
Texte intégralIncludes bibliographical references (leaves 49-55). Also available in electronic version. Access restricted to campus users.
Tantrum, Jeremy. « Model based and hybrid clustering of large datasets / ». Thesis, Connect to this title online ; UW restricted, 2003. http://hdl.handle.net/1773/8933.
Texte intégralZhou, Hong. « Visual clustering in parallel coordinates and graphs / ». View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20ZHOU.
Texte intégral梁德貞 et Tak-ching Leung. « Correspondence analysis and clustering with applications to site-species occurrence ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31209889.
Texte intégralLeung, Tak-ching. « Correspondence analysis and clustering with applications to site-species occurrence / ». [Hong Kong] : University of Hong Kong, 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13039519.
Texte intégralLee, King-for Foris, et 李敬科. « Clustering uncertain data using Voronoi diagram ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43224131.
Texte intégralSzeto, Lap Keung. « Clustering analysis of microarray gene expression data / ». access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?mphil-it-b19885817a.pdf.
Texte intégral"Submitted to Department of Computer Engineering and Information Technology in partial fulfillment of the requirements for the degree of Master of Philosophy" Includes bibliographical references (leaves 70-79)
Ray, Shubhankar. « Nonparametric Bayesian analysis of some clustering problems ». Texas A&M University, 2006. http://hdl.handle.net/1969.1/4251.
Texte intégralWeijermars, Wilhelmina Adriana Maria. « Analysis of urban traffic patterns using clustering ». Enschede : University of Twente [Host], 2007. http://doc.utwente.nl/57837.
Texte intégralBennett, Brian Todd. « Locating Potential Aspect Interference Using Clustering Analysis ». NSUWorks, 2015. http://nsuworks.nova.edu/gscis_etd/50.
Texte intégralPetrov, Anton Igorevich. « RNA 3D Motifs : Identification, Clustering, and Analysis ». Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1333929629.
Texte intégralTalasu, Dharneesh. « Efficient fMRI Analysis and Clustering on GPUs ». The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1322077186.
Texte intégralJankovsky, Zachary Kyle. « Clustering Analysis of Nuclear Proliferation Resistance Measures ». The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1398354675.
Texte intégralBhusal, Prem. « Scalable Clustering for Immune Repertoire Sequence Analysis ». Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1558631347622374.
Texte intégralYuan, Ding. « Heuristic subset clustering for consideration set analysis ». Diss., University of Iowa, 2007. http://ir.uiowa.edu/etd/137.
Texte intégralSpeer, Nora. « Funktionelles Clustering von Genen mit der Gene Ontology / ». Berlin : Logos-Verl, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2875270&prov=M&dok_var=1&dok_ext=htm.
Texte intégralWoo, Kam Tim. « Applications of clustering techniques on communication systems / ». View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20WOO.
Texte intégralHossain, Mahmud Shahriar. « Exploratory Data Analysis using Clusters and Stories ». Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28085.
Texte intégralPh. D.
Eriksson, Håkan. « Clustering Generic Log Files Under Limited Data Assumptions ». Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189642.
Texte intégralKomplexa datorsystem är ofta benägna att uppvisa anormalt eller felaktigt beteende, vilket kan leda till kostsamma driftstopp under tiden som systemen diagnosticeras och repareras. En informationskälla till feldiagnosticeringen är loggfiler, vilka ofta genereras i stora mängder och av olika typer. Givet loggfilernas storlek och semistrukturerade utseende så blir en manuell analys orimlig att genomföra. Viss automatisering är önsvkärd för att sovra bland loggfilerna så att källan till felen och anormaliteterna blir enklare att upptäcka. Det här projektet syftade till att utveckla en generell algoritm som kan klustra olikartade loggfiler i enlighet med domänexpertis. Resultaten visar att algoritmen presterar väl i enlighet med manuell klustring även med färre antaganden om datan.
Li, Yanjun. « High Performance Text Document Clustering ». Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1181005422.
Texte intégralStrehl, Alexander. « Relationship-based clustering and cluster ensembles for high-dimensional data mining ». Thesis, Full text (PDF) from UMI/Dissertation Abstracts International, 2002. http://wwwlib.umi.com/cr/utexas/fullcit?p3088578.
Texte intégralKonda, Swetha Reddy. « Classification of software components based on clustering ». Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5510.
Texte intégralTitle from document title page. Document formatted into pages; contains vi, 59 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 57-59).
Zhang, Kai. « Kernel-based clustering and low rank approximation / ». View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CSED%202008%20ZHANG.
Texte intégralBohn, Angela, Stefan Theußl, Ingo Feinerer, Kurt Hornik, Patrick Mair et Norbert Walchhofer. « Combining Weighted Centrality and Network Clustering ». Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 2009. http://epub.wu.ac.at/1466/1/document.pdf.
Texte intégralSeries: Research Report Series / Department of Statistics and Mathematics
CAMPAGNI, RENZA. « Data Mining Models for Student Databases ». Doctoral thesis, 2013. http://hdl.handle.net/2158/803882.
Texte intégralVAIRA, RAFFAELE. « HUMAN BEHAVIOUR ANALYSIS IN INDOOR AND OUTDOOR ENVIRONMENTS AND CLUSTERING OF TRAVELLED TRAJECTORIES ». Doctoral thesis, 2021. http://hdl.handle.net/11566/291056.
Texte intégralThe advent, in recent years, of less invasive and cheaper technologies for the detection of actions performed by a human in various fields, has led to a huge growth of interest in the analysis of human behavior. In particular, through the large amount of data obtained by means of these technologies and thanks to the increasing computational power available, it has been possible to analyze more and more in detail both indoor and outdoor human behavior. This thesis work is placed right in this context. Through the use of different types of sensors for data collection, we focused on the analysis of pedestrian behavior both outdoors (particularly in the context of a natural park) and in-doors. With regard to the latter analysis, the retail environment was taken into consideration; therefore, a series of strategies were developed for data collection in this context and for the analysis of consumer behavior with different levels of detail. Always starting from the trajectory data, the shopper’s habits have been analyzed at store, shelf and finally person level through the sentiment analysis. The entire analysis was conducted taking into consideration real case studies and consequently real data.