BEHAVIOR BASED METHOD AND SYSTEM FOR FILTERING OUT UNFAIR RATINGS FOR TRUST MODELS
First Claim
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1. A method for filtering out unfair ratings based on behaviors, comprising:
- receiving ratings and contexts under which the ratings were given;
classifying raters into fair raters with fair behavior and doubtful raters with doubtful behavior using the ratings and contexts, ratings from the fair raters being fair ratings and ratings from the doubtful raters being doubtful ratings;
calculating a truster'"'"'s final trust decision on the ratee using ratings given by the fair raters; and
regarding each of the doubtful raters as an unfair rater if the received rating is different from the truster'"'"'s final trust decision, and otherwise as a retrain rater, and regarding the rating from the unfair rater as an unfair rating.
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Abstract
Disclosed is a behavior-based method which uses each rater'"'"'s rating behaviors as the criterion to judge unfair ratings. A behavior refers to the action that a rater gives certain rating under specific context. The behavior-based method regards the rating given by a rater with abnormal behavior as an unfair rating, where abnormal behavior is recognized by comparing a rater'"'"'s current behavior with his behavior history.
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10 Claims
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1. A method for filtering out unfair ratings based on behaviors, comprising:
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receiving ratings and contexts under which the ratings were given; classifying raters into fair raters with fair behavior and doubtful raters with doubtful behavior using the ratings and contexts, ratings from the fair raters being fair ratings and ratings from the doubtful raters being doubtful ratings; calculating a truster'"'"'s final trust decision on the ratee using ratings given by the fair raters; and regarding each of the doubtful raters as an unfair rater if the received rating is different from the truster'"'"'s final trust decision, and otherwise as a retrain rater, and regarding the rating from the unfair rater as an unfair rating. - View Dependent Claims (2, 3, 4, 5)
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6. A system for filtering out unfair ratings based on behaviors, comprising:
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means for receiving ratings and contexts under which the ratings were given; means for classifying raters into fair raters with fair behavior and doubtful raters with doubtful behavior using the ratings and contexts, ratings from the fair raters being fair ratings and ratings from the doubtful raters being doubtful ratings; means for calculating a truster'"'"'s final trust decision on the ratee using ratings given by the fair raters; and means for regarding each of the doubtful raters as an unfair rater if the received rating is different from the truster'"'"'s final trust decision, and otherwise as a retrain rater, and regarding the rating from the unfair rater as an unfair rating. - View Dependent Claims (7, 8, 9, 10)
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Specification