We propose a plan-based approach for responding to user queries in a collaborative environment. We argue that in such an environment, the system should not accept the user's ...
Information retrieval systems have typically concentrated on retrieving a set of documents which are relevant to a user's query. This paper describes a system that attempts t...
Documentsretrieved in responseto a user's query shouldreflect the intention of the user. Keyword searchesare not sufficient to accomplishthis task. This paper considersLatent...
At present, adapting an Information Extraction system to new topics is an expensive and slow process, requiring some knowledge engineering for each new topic. We propose a new par...
In this work, we present a framework for the semantic composition of web services based on Statecharts and uniform community service descriptions. Our model is a two step process....
Link analysis has been used to enhance retrieval results of the web search for years. PageRank and HITS are the two well-known algorithms widely used by most researchers. The form...