2607 search results - page 40 / 522 » An Ontology-Based Information Retrieval Model |
IJCNLP
2004
Springer
14 years 2 months ago
2004
Springer
In this paper, a series of window-based methods is proposed for information retrieval. Compared with traditional tf-idf model, our approaches are based on two new key notions. The ...
SIGIR
2009
ACM
14 years 3 months ago
2009
ACM
Topics form a crucial component of a test collection. We show, through visualization, that the INEX 2008 topics have shortcomings, which questions their validity for evaluating XM...
SIGIR
2003
ACM
14 years 2 months ago
2003
ACM
An empirical study has been conducted investigating the relationship between the performance of a generative language model in terms of perplexity and the corresponding informatio...
SIGIR
2004
ACM
14 years 2 months ago
2004
ACM
Empirical studies of information retrieval methods show that good retrieval performance is closely related to the use of various retrieval heuristics, such as TF-IDF weighting. On...
SIGIR
2002
ACM
13 years 8 months ago
2002
ACM