USING CONFIDENCE ABOUT USER INTENT IN A REPUTATION SYSTEM

摘要

Reputations of objects are determined by a reputation system using reports from clients identifying the objects. Confidence metrics for the clients are generated using information determined from the reports. Confidence metrics indicate the amounts of confidence in the veracity of the reports. Reputation scores of objects are calculated using the reports from the clients and the confidence metrics for the clients. Confidence metrics and reputation scores are stored in correlation with identifiers for the objects. An object's reputation score is provided to a client in response to a request.

主权项

1. A method of using a computer to determine a reputation of an object in a reputation system, comprising:
receiving reports from clients in the reputation system, the reports identifying an object detected at the clients; determining a prevalence of the object on the clients in the reputation system based on the reports received from the clients; determining information about the clients from the reports received from the clients; generating confidence metrics for the clients responsive to the determined information about the clients, the confidence metrics indicating amounts of confidence in the veracity of the reports received from the clients, wherein higher confidence metrics for the clients indicate that information in reports received from the clients is more likely to be true; calculating a reputation score of the object responsive at least in part to the reports received from the clients, the prevalence of the object, and the confidence metrics for the clients, wherein a high prevalence of the object on the clients causes the object to receive a higher reputation score indicating that the object is unlikely to contain malicious software; and storing the reputation score of the object.