TAILIEUCHUNG - Building Web Reputation Systems- P15

Building Web Reputation Systems- P15:Today’s Web is the product of over a billion hands and minds. Around the clock and around the globe, people are pumping out contributions small and large: full-length features on Vimeo, video shorts on YouTube, comments on Blogger, discussions on Yahoo! Groups, and tagged-and-titled bookmarks. User-generated content and robust crowd participation have become the hallmarks of Web . | Content Reputation Content reputation scores may be simple or complex. The simpler the score is that is the more it directly reflects the opinions or values of users the more ways you can consider using and presenting it. You can use them for filters sorting ranking and in many kinds of corporate and personalization applications. On most sites content reputation does the heavy lifting of helping you to find the best and worst items for appropriate attention. it When displaying content reputation avoid putting too many different scores of different types on a page. For example on the Yahoo TV episode page a user can give an overall star rating to a TV program and a thumb vote on an individual episode of the program. Examination of the data showed that many visitors to the page clicked the thumb icons when they meant to rate the entire show not just an episode. Karma Content reputation is about things typically inanimate objects without emotions or the ability to directly respond in any way to its reputation. But karma represents the reputation of users and users are people. They are alive they have feelings and they are the engine that powers your site. Karma is significantly more personal and therefore sensitive and meaningful. If a manufacturer gets a single bad product review on a website it probably won t even notice. But if a user gets a bad rating from a friend or feels slighted or alienated by the way your karma system works she might abandon an identity that has become valuable to your business. Worse yet she might abandon your site altogether and take her content with her. Worst of all she might take others with her. Take extreme care in creating a karma system. User reputation on the Web has undergone many experiments and the primary lesson from that research is that karma should be a complex reputation and it should be displayed rarely. Karma is complex built of indirect inputs Sometimes making things as simple and explicit as possible is the wrong choice

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