Precisao no processo de busca e recuperacao da informacao: uso da mineracao de textos. / Precision rate in the information retrieval process: the use of text mining

• Published in: Ciência da informação Vol. 35; no. 3; pp. 236 - 247
• Main Authors: de Araujo Junior, Rogerio Henrique, Tarapanoff, Kira
• Format: Journal Article
• Language: English; Portuguese
• Published: Instituto Brasileiro de Informação em Ciência e Tecnologia (IBICT) 01.12.2006
• Subjects: Data mining; Indexing process; Information retrieval process; Mineração de textos; Online information retrieval; Precision; Precision rate; Processo de indexação; Processo de recuperação da informação; Text mining; Índice de precisão
• ISSN: 0100-1965; 1518-8353
• DOI: 10.1590/S0100-19652006000300023

This research deals with the comparison between manual indexing and the text mining tool, using the analysis of reply precision rate in the information retrieval process. The case study selected for this research was the Centro de Referenda e Informacao em Habitacao - Infohab. The center which contains the database on habitation, sanitation and urbanization was manually indexed by the librarians of Caixa Economica Federal, using a list of key words. A prototype was developed, containing bibliographic references that corresponded to the theses and dissertations of Infohab, which allowed the application of BR/Search software of text mining. The researches performed on the prototype and in Infohab were demanded by specialists of Caixa in database subjects. The research gave evidenced that there are no significant profits in the precision rate with the applications of text mining tool in relation to the manual indexing. Adapted from the source document.