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The agent was developed as a separate, stand\u2010alone component to be integrated with existing information retrieval systems. The performance of an information retrieval system with the integrated agent was subjected to an evaluation with 30 test subjects. The results indicate that agents developed using both results from previous user studies and rapidly modeling user information needs can result in an improvement in precision. Implications for information retrieval system design and directions for future research are outlined.<\/jats:p>","DOI":"10.1108\/10662240410516291","type":"journal-article","created":{"date-parts":[[2004,3,3]],"date-time":"2004-03-03T18:50:21Z","timestamp":1078339821000},"page":"19-33","source":"Crossref","is-referenced-by-count":5,"title":["Assisting the searcher: utilizing software agents for Web search systems"],"prefix":"10.1108","volume":"14","author":[{"given":"Bernard J.","family":"Jansen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Udo","family":"Pooch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"140","reference":[{"key":"key2022031020342464900_B1","unstructured":"Boff, K.R. and Lincoln, J.E. (1988), Engineering Data Compendium: Human Perception and Performance, Harry G. 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