Coeficientes de revocação (recall) e precisão (precision) do sistema de recuperação de informação da biblioteca do ICEX da UFMG: usando amostra do acervo de teses e dissertações

Abstract

Many reasons are responsable for sucess or insucess of the result of search. Some of these are: indexing, indexing language used of the SRI, and search strategy etc. In this context, some criterions and measures to evaluation of the information retrieval system are created by importants authors. So, this work propose evaluate the performance of tools of information retrieval between ranking of recall and precision. Then, is propose one empirical experiment where is realize comparasion the results of search in online catalog of Sistema de Biblioteca daUFMG from selection set from sample. The sample selection is the collection of dissertation and thesis result of the Programa de Pós Graduação de Ciência da Computação about the follow subjects: Information retrieval in web, users interface, networks wireless. From of the searches realized on online catalog are presented the results from searches measuring the ranking of recall and precision and then are análise the faults of searches. The results are presented by figures andtables. The indexing language, the search strategies, the faults at cataloguing and the absenceof documents at data base were the main faults find in results of searches.information retrieval. And finally this work give some reasons and sugestions for futeres works.