ScholarlyCommons@Penn - Andrew G. West, Sampath Kannan, Insup Le. Abstract Reputation management (RM) is employed in distributed and peer-to-peer networks to help users compute a measure of trust in other users based on initial belief, observed behavior, and run-time feedback. These trust values influence how, or with whom, a user will interact. Existing literature on RM focuses primarily on algorithm development, not comparative analysis. To remedy this, we propose an evaluation framework based on the trace-simulator paradigm. Trace file generation emulates a variety of network configurations, and particular attention is given to modeling malicious user behavior. This chapter reports on our framework’s design decisions.
Keywords reputation management, reputation algorithm, EigenTrust, TNA-SL, a priori trust, transitive trust, malicious collective, bandwidth throttling, feedback, peer-to-peer network, decentralized topology, trust management, network trace, Zipf distribution. Startup News | Distributed karma: an idea for fixing recommendat. Two points: It seems a question of scope is in order here; what exactly is the purpose of a recommendation system? Is it a system to forward to users that which they want to see, or is it a system that suggests various opinion of high quality to users? Often, I think we're trying to construct the latter by designing the former. Secondly, Reddit's system works perfectly to forward to the user what they would like based on what's been submitted - the issue being that the average quality of submission has lowered over time. The solution: Scaling is the problem, so stop/limit scaling. We're not seeing a degradation of quality, we're seeing a better reflection of the average opinion - the larger the crowd, the lower the average.
You can tweak things a little, perhaps come up with systems that use more cpu power than the space navigation does, but the end result will be the same: average opinion wins - exactly what you should expect. OpenID: an actually distributed identity system. Home Page - Luca de Alfaro. A Community Driven to Do The Right Thing -- Social News Sites Fi. Against Well-designed Reputation Systems (An Argument for Commun. Intro: I was part of a group of people asked by Beth Noveck to advise the Community Patent review project about the design of a reputation and ranking system, to allow the widest possible input while keeping system gaming to a minimum. This was my reply, edited slightly for posting here. We’ve all gone to school on the moderation and reputation systems of Slashdot and eBay. In those cases, their growing popularity in the period after their respective launches led to a tragedy of the commons, where open access plus incentives led to nearly constant attack by people wanting to game the system, whether to gain attention for themselves or their point of view in the case of Slashdot, or to defraud other users, as with eBay.
The traditional response to these problems would have been to hire editors or other functionaries to police the system for abuse, in order to stem the damage and to assure ordinary users you were working on their behalf. The Argument in Two Pictures. Reputation Managers are Happening (Alertbox Sept. 1999) Wikipedia Reputation and the Wemedia Project. The core issue of collaborative editing, that of accuracy and trust, has reached a point in debate where research is needed to advance the practice of content use and development. Hiawatha Bray of the Boston Globle offered a Wikipedia criticism in July, calling it One great source — if you can trust it: For it lacks one vital feature of the traditional encyclopedia: accountability. Old-school reference books hire expert scholars to write their articles, and employ skilled editors to check and double-check their work.
Wikipedia’s articles are written by anyone who fancies himself an expert… “I think it’s exactly the right price,” said Michael Ross, senior vice president of corporate development at Encyclopaedia Britannica Inc. in Chicago. In 2002, Wikipedia was criticized because it couldn’t scale and have in-depth articles. Hiawatha raised a key issue, that of quality and reputation, and his piece highlighted Wikipedia’s ambition to publish a first print version. Reputation management. Reputation management is the understanding or influencing of an individual's or business's reputation. It was originally coined as a public relations term, but advancement in computing, the internet and social media made it primarily an issue of search results. Some parts of reputation management are often associated with ethical grey areas, such as astroturfing review sites, censoring negative complaints or using SEO tactics to game the system and influence results.
There are also ethical forms of reputation management, which are frequently used, such as responding to customer complaints, asking sites to take down incorrect information and using online feedback to influence product development.[1][2] History[edit] In 2007 a study by the University of California Berkeley found that some sellers were undertaking reputation management on eBay by selling products at a discount in exchange for positive feedback to game the system.[6] Concepts[edit] 1. Ethics[edit] Justification[edit] INDIRECT RECIPROCITY, ASSESSMENT HARDWIRING, AND REPUTATION: A T.
These ideas fed into our work on indirect reciprocity, a concept that was first introduced by Robert Trivers in a famous paper in the 1970s. I recall that he mentioned this idea obliquely when he wrote about something he called "general altruism". Here you give something back not to the person to whom you owe something, but to somebody else in society. He pointed out that this also works with regard to cooperation at a high level. Trivers didn't go into details, because at the time it was not really at the center of his thinking.
He was mostly interested in animal behavior, and so far indirect reciprocity has not been proven to exist in animal behavior. In human societies, however, indirect reciprocity has a very striking effect. A Talk with Karl Sigmund Karl Sigmund in front of Albertina Platz, Vienna Introduction "Once a year the theoretical chemist Peter Schuster used to take his students from the University of Vienna to a small house in the Austrian mountains.