ASIS&T 2006 START Conference Manager    

An Adaptive User Profile for Filtering News Based on a User Interest Hierarchy

Sarabdeep Singh, Michael Shepherd, Jack Duffy and Carolyn Watters

ASIS&T Annual Meeting - 2006 (ASIS&T 2006)
Austin, Texas, November 3-9, 2006


A prototype system for the filtering and ranking of news items has been developed and a pilot test has been conducted. The user’s interests are modeled by a user interest hierarchy based on explicit user feedback with adaptive learning after each session. The system learned very quickly, reaching normalized recall values of over 0.9 within three sessions. When the user’s interests “drifted”, the system adapted but the speed with which it adapted seemed dependent on the amount of feedback provided by the user.

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