We conduct large-scale search engine relevance experiments, using the 12% of queries that contain placenames, matching the placenames to places in the documents, and examining the...
Most existing information retrieval (IR) systems do not take much advantage of natural language processing (NLP) techniques due to the complexity and limited observed effectivenes...
With the increasing importance of the World Wide Web as an information source, there is a growing interest for integration of Web and database technology. Several Web query languag...
The traditional crawlers used by search engines to build their collection of Web pages frequently gather unmodified pages that already exist in their collection. This creates unne...
Organising large-scale Web information retrieval systems into hierarchies of topic-specific search resources can improve both the quality of results and the efficient use of com...