2607 search results - page 228 / 522 » An Ontology-Based Information Retrieval Model |
177
click to vote
ACIIDS
2009
IEEE
15 years 11 months ago
2009
IEEE
— In this paper I show how ontologies support the student modelling through the semantic definition of concepts that depict a student. The aim is to outline the framework for bui...
207
click to vote
TKDE
2010
15 years 5 months ago
2010
—Probabilistic topic models were originally developed and utilised for document modeling and topic extraction in Information Retrieval. In this paper we describe a new approach f...
172
click to vote
WWW
2005
ACM
16 years 7 months ago
2005
ACM
This paper is concerned with the problem of definition search. Specifically, given a term, we are to retrieve definitional excerpts of the term and rank the extracted excerpts acc...
187
click to vote
WWW
2008
ACM
16 years 7 months ago
2008
ACM
In this paper, we propose a novel unsupervised approach to query segmentation, an important task in Web search. We use a generative query model to recover a query's underlyin...
175
click to vote
WWW
2007
ACM
16 years 7 months ago
2007
ACM
We propose a model for user purchase behavior in online stores that provide recommendation services. We model the purchase probability given recommendations for each user based on...