## Abstract Four new automatic query expansion strategies based on UMLS Metathesaurus are proposed to improve the effectiveness of health information retrieval: String index with Concept expansion (SC), String index with Term expansion (ST), Word index with Concept expansion (WC), and Word index wi
Query expansion methods for collaborative information retrieval
β Scribed by Hust, Armin
- Publisher
- Springer-Verlag
- Year
- 2005
- Tongue
- German
- Weight
- 734 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0178-3564
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Keyword based querying has been an immediate and efficient way to specify and retrieve related information that the user inquired. However, conventional document ranking based on an automatic assessment of document relevance to the query may not be the best approach when little information is given.
Up to now, the results of applying sophisticated NL techniques to information retrieval (IR) have been mostly disappointing. Our research aims at investigating in detail the role of syntactic analysis in IR and at finding answers to the question why it works better for some queries and worse for oth
## Abstract Understanding what kinds of Web pages are the most useful for Web search engine users is a critical task in Web information retrieval (IR). Most previous works used hyperlink analysis algorithms to solve this problem. However, little research has been focused on queryβindependent Web da