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{{ safesubst:#invoke:Unsubst||$N=More footnotes |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} A reputation system computes and publishes reputation scores for a set of objects (e.g. service providers, services, goods or entities) within a community or domain, based on a collection of opinions that other entities hold about the objects. The opinions are typically passed as ratings to a central place where all perceptions, opinions and ratings can be accumulated. A reputation center uses a specific reputation algorithm to dynamically compute the reputation scores based on the received ratings. Reputation is a sign of trustworthiness manifested as testimony by other people.<ref name="tomslee.net">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> New expectations and realities about the transparency, availability, and privacy of people and institutions are emerging. Reputation management – the selective exposure of personal information and activities – is an important element to how people function in networks as they establish credentials, build trust with others, and gather information to deal with problems or make decisions.<ref>Lee Rainie and Barry Wellman, Networked: The New Social Operating System. MIT Press, 2012.</ref>

Reputation systems are related to recommender systems and collaborative filtering, but with the difference that reputation systems produce scores based on explicit ratings from the community, whereas recommender systems use some external set of entities and events (such as the purchase of books, movies, or music) to generate marketing recommendations to users. The role of reputation systems is to facilitate trust, and often functions by making the reputation more visible.<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref><ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref>


Reputation system sections
Intro  Types of reputation systems   Notable examples of practical applications   Reputation as a resource  Attacks on reputation systems  See also  References  [[Reputation_system?section=External</a>_links|External</a> links]]  

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