Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/1306
Título: Determination of electricity consumers’ load profiles via weighted evidence accumulation clustering using subsampling
Autor: Duarte, Jorge
Fred, Ana
Rodrigues, Fátima
Duarte, João
Ramos, Sérgio
Vale, Zita
Palavras-chave: Electricity markets
Load profiles
Clustering
Data: 2007
Editora: Acta Press
Resumo: With the electricity market liberalization, the distribution and retail companies are looking for better market strategies based on adequate information upon the consumption patterns of its electricity consumers. A fair insight on the consumers’ behavior will permit the definition of specific contract aspects based on the different consumption patterns. In order to form the different consumers’ classes, and find a set of representative consumption patterns we use electricity consumption data from a utility client’s database and two approaches: Two-step clustering algorithm and the WEACS approach based on evidence accumulation (EAC) for combining partitions in a clustering ensemble. While EAC uses a voting mechanism to produce a co-association matrix based on the pairwise associations obtained from N partitions and where each partition has equal weight in the combination process, the WEACS approach uses subsampling and weights differently the partitions. As a complementary step to the WEACS approach, we combine the partitions obtained in the WEACS approach with the ALL clustering ensemble construction method and we use the Ward Link algorithm to obtain the final data partition. The characterization of the obtained consumers’ clusters was performed using the C5.0 classification algorithm. Experiment results showed that the WEACS approach leads to better results than many other clustering approaches.
URI: http://hdl.handle.net/10400.22/1306
ISBN: 978-0-88986-657-7
Versão do Editor: http://www.actapress.com/Abstract.aspx?paperId=30311
Aparece nas colecções:ISEP – GECAD – Comunicações em eventos científicos

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
COM_JorgeDuarte_2007_GECAD.pdf480,29 kBAdobe PDFVer/Abrir    Acesso Restrito. Solicitar cópia ao autor!


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.