RÉSUMÉ. Cet article décrit la banque documentaire MEDLINE depuis laquelle une collection test comprenant environ 4,5 million de documents structurés a été construite à partir des campagnes d’évaluation TREC. Dans une deuxième partie, nous évaluons et comparons l’efficacité du dépistage de l’information de dix modèles (probabiliste, modèle de langue, approches vectorielles). Cette évaluation est...

This paper provides the preliminary result in our experiments to automatically assign MeSH terms to MEDLINE abstracts. Every year about 100,000 documents are added to MEDLINE, index terms are assigned by hand to each document from a controlled vocabulary called MeSH. This is necessarily time consuming and may lead to inconsistent indexing due to the large size of MeSH. Our purpose is to explore...

OBJECTIVE To investigate a new approach for query expansion based on retrieval feedback. The first objective in this study was to examine alternative query-expansion methods within the same retrieval-feedback framework. The three alternatives proposed are: expansion on the MeSH query field alone, expansion on the free-text field alone, and expansion on both the MeSH and the free-text fields. Th...

BACKGROUND Categorization is designed to enhance resource description by organizing content description so as to enable the reader to grasp quickly and easily what are the main topics discussed in it. The objective of this work is to propose a categorization algorithm to classify a set of scientific articles indexed with the MeSH thesaurus, and in particular those of the MEDLINE bibliographic d...

introduction: the study on psychology of marriage rooted in the social issues. the field has also found its way to biomedicine. the current research, based on the document-term clustering methods, focus on term-proximity of documents that were related to the field of psychology of marriage in biomedicine literature. methods: the co-occurrence frequency of terms within the two different corpuses...