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.
See Also: Findory, a news, blog, and podcast tool the offers personalized and adaptive suggestions based on various metrics. Free, easy to use.
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