chapter 1 reputation systems are everywhere
Building Web Reputation Systems doc
... details Some are about people, and some are about products Some are numeric, some are votes, some are comments Many are created directly by users, but a surprising number is created by software Any ... 1: Reputation Systems Are Everywhere As it turns out, this model may be a little too generalized; some critical elements are left out For example, as we’ve already pointed out, these statements are always ... There People Are Good Basically The Reputation Virtuous Circle Who’s Using Reputation Systems? Challenges in Building Reputation Systems Related Subjects Conceptualizing Reputation Systems 4 6...
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Building Web Reputation Systems- P1 doc
... There People Are Good Basically The Reputation Virtuous Circle Who’s Using Reputation Systems? Challenges in Building Reputation Systems Related Subjects Conceptualizing Reputation Systems 4 6 ... ix Part I Reputation Defined and Illustrated Reputation Systems Are Everywhere An Opinionated Conversation People Have ... Systems, the image of a Pionus parrot, and related trade dress are trademarks of O’Reilly Media, Inc Many of the designations used by manufacturers and sellers to distinguish their products are...
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Building Web Reputation Systems- P2 pot
... 1: Reputation Systems Are Everywhere As it turns out, this model may be a little too generalized; some critical elements are left out For example, as we’ve already pointed out, these statements are always ... line xviii | Preface PART I Reputation Defined and Illustrated CHAPTER Reputation Systems Are Everywhere Reputation systems impact your life every day, even when you don’t realize it You need reputation ... 1: Reputation Systems Are Everywhere On the other hand, a corporate performance review would not benefit from broader publication On the contrary, it is inappropriate, even illegal in some places, to share...
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Building Web Reputation Systems- P3 pot
... details Some are about people, and some are about products Some are numeric, some are votes, some are comments Many are created directly by users, but a surprising number is created by software Any ... baidu.com † ††† † † ††† - †† rapidshare.com -d - - ††† - - †† microsoft.com - - † - - - ††† hi5.com † † † † † † †† 18 | Chapter 1: Reputation Systems Are Everywhere Website Quality karma Competitive ... trademark-monitoring These are techniques to track and manipulate the very online reputation systems described in this book Conceptualizing Reputation Systems We’ve demonstrated that reputation is everywhere...
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Building Web Reputation Systems- P4 pptx
... you believe?” Solutions: Mixing Models to Make Systems In one more invocation of our chemistry metaphor, consider that physical materials are rarely made of a single type of molecule Chemists ... Mixing Models to Make Systems | 35 Reputation framework engineers, software architects If you’re interested in technical details and want to know more about implementing reputation systems and dealing ... activity, measured by comments left on the target entity These two are weighted and combined to produce a rating Figure 2-4 Now articles are ranked not only according to endorsements, but also the amount...
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Building Web Reputation Systems- P5 ppsx
... normalize those scores somewhere.) Normalized values are also highly readable: because the bounds of a normalized score are already known, they are very easy (for you, the system architect, or others ... rating systems, we’d be surprised if—in your mind—you’re not seeing stars Rating systems of 3, 4, and stars abound on the Web and have achieved a level of semipermanence in reputation systems ... inputs Its components are a SumOfInputs, CountOfInputs, and the process claim value, AvgOfInputs Here are pros and cons of using a Simple Average roll-up: Pros Cons Simple averages are easy for users...
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Building Web Reputation Systems- P6 pptx
... values are kept as close to the data store as possible For small systems, it may be reasonable to keep the entire reputation system in memory at once, thus avoiding this complication But be careful ... reputation building blocks out of which hundreds of currently deployed reputation systems are built We also shared tips about a few surprises we’ve encountered that emerge when these processes ... Without normalization, claim values are ambiguous A claim value of could mean out of stars, on a 10-point scale, thumbs up, votes out of 50, or points Normalized values are portable (messages and data...
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Building Web Reputation Systems- P7 pptx
... reviewer quality-karma rating are generated on the fly Pay careful attention to the sources and targets of the inputs of this model; they are not the same users, nor are their ratings targeted at ... counters for the last month and quarter, which we are omitting here for the sake of clarity Abuse mitigation features, which are not publicly available, are also excluded 78 | Chapter 4: Common Reputation ... in building such reputation systems We offer two pieces of advice for anyone building similar systems: there is no substitute for gathering historical data when you are deciding how to clip and...
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Building Web Reputation Systems- P8 docx
... “Corporate Reputations Are Internal Use Only: Keep Them Hush-hush” on page 172.) • What are the inputs that feed into those reputations? • How are they weighted? (That is, what are the important inputs?) ... customer care department by allowing users to prioritize the bad content for attention and likewise flag power users and content to be featured But mechanical reputation systems, of necessity, are ... illuminate popular complex reputation systems found in the wild Along the way, we sprinkled in practitioner’s tips to share what we’ve learned from existing reputation systems to help you understand...
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Building Web Reputation Systems- P10 ppsx
... good Ariely says these exchanges are “wrapped up in our social nature and our need for community They are usually warm and fuzzy.” Market norms, on the other hand, are cold and mediated by wages, ... incentives, and know-it-all Some users are motivated to contribute to a site by a passion of some kind Some passions are temporary; for example, the crusaders are like those who’ve had a terrible ... political beliefs that they feel compelled to share; these are the opinionated The know-it-all users’ passions emerge from topical expertise and others who are just killing time In any case, people...
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Building Web Reputation Systems- P11 pdf
... measuring how many people click your URL and how many share it with others For contributors who are building a brand, public karma systems are a double-edged sword If a contributor is at the top ... higher level of competitiveness than what really exists Because reputation systems and their attendant incentive systems are often intended to emulate the principles of engaging game designs, designers ... Here are some examples: • A social site that lets you share recipes and keep and print shopping lists of ingredients • A tool that lets you edit music mashups, build playlists of them, and share...
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Building Web Reputation Systems- P12 ppt
... to consume (5-star rating systems seem to be everywhere, so users aren’t unfamiliar with them) and for you, the system designer, to plan Tread carefully, though Here are some small behavioral ... activations — Just-in-time inputs Many reputation models are real-time systems in which reputations change constantly, even when users aren’t providing any direct input For example, a mail antispam ... refinement of instrumentation in your application: are you prepared to capture relevant actions at the right junctures and generate reputation events to share with the system? Don’t get too clever with...
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Building Web Reputation Systems- P13 pdf
... to save money in your customer care flow by prioritizing the worst cases of apparent abuse for quick review You might also deemphasize cases involving users who are otherwise strong contributors ... certain common patterns in the course of designing reputation systems and observing systems that others have created These few patterns are not at all comprehensive, and never could be We provide ... ratings Personalization roll-ups are stored on a per-user basis and generally consist of preference information that is not shared publicly Often these reputations are attached to very fine-grained...
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Building Web Reputation Systems- P14 docx
... not be aware of it, more hidden decisions are made on the basis of reputation than are actually reflected directly to users, either with filtering or ranking Billions of email messages are processed ... context-sensitive decisions eBay’s feedback and other reputation scores are a good example of a publicly shared karma Since the transactions for items are often one of a kind, content filtering and ranking don’t ... you’re new to the area Give me all your Simoleans or my friends and I will make it impossible to rent a house.” 162 | Chapter 6: Objects, Inputs, Scope, and Mechanism “What are you talking about?”...
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Building Web Reputation Systems- P15 pptx
... sparingly There are several important things to consider when displaying karma to the public: • Publicly displayed karma should be rare because, as with content reputation, users are easily confused ... These are rules of thumb that may not necessarily apply to a given context In roleplaying games, for example, publicly shared simple karma is displayed in terms of experience levels, which are ... are all transformed into normalized scores, which can then be displayed in any form Here are the four primary data classes for reputation claims: Normalized score Most composite reputations are...
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Building Web Reputation Systems- P16 ppsx
... scale because some areas are inhabited by determined window-breakers, whereas others are populated by window-lovers; rather, one unrepaired broken window is a signal that no one cares, and so breaking ... win-win-win scenario In practice, employing this pattern has rarely been this straightforward Here are just a few reasons why leaderboards are hard to get right What you measure? Many leaderboards ... hateful or ad hominem comments are an indication that this is allowable behavior and encourages more of the same Those commenters who are normally respectable participants are emboldened by the uptick...
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Building Web Reputation Systems- P17 ppt
... need not be a public affair Of course, any reputations that are public will benefit contributors as well; they are free to review and compare their standings against those of their peers But you ... positively influencing your community Teach Your Users How to Fish | 209 Aren’t there some more direct ways? Why yes, there are As it turns out, the methods and methodology of gathering reputation ... display-name and an avatar • Visible histories reveal shared affinities and allow users with common interests to find one another If you are a Top Contributor in the Board Games section of a site,...
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Building Web Reputation Systems- P18 docx
... (in this case, your employment) are dependent in some part upon the output from the system Why are feedback loops bad? Well, as the Times points out, feedback loops are selfperpetuating and, once ... though: testers at this phase, even if they are from outside your formal organization, are not usually representative of your postdeployment users, so be careful what conclusions you draw about their ... the sake of clarity, we refer to the software engineers that turn your model into operational code as the reputation implementation team and those who are 223 going to connect the application...
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Building Web Reputation Systems- P19 ppsx
... possible that Digg feels that high voting levels—even if some percentage of those votes are from uninformed users are important enough to promote voting at higher and higher levels of the site From ... there are certainly some good principles of design that you can follow that may defend your system against some of the most common ones: Encourage consumption If your system’s reputations are intended ... or Favorites features, carefully consider whether you also need a Thumbs Up or “I Like It.” In any event, provide some cues to users about the utility of those controls Are they strictly for expressing...
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Building Web Reputation Systems- P20 pps
... Moderation—Inventors: Ori Zaltzman and Quy Dinh Le Please consider the patent if you are even thinking about copying this design We are grateful to both the Yahoo! Answers and the reputation product teams ... Yahoo! Answers team’s willingness to share, we’re able to provide an accurate overall picture of the reputation system and its application The Objects Here are the objects of interest for designing ... contributions User contributions are the objects that users make by either adding or evaluating content: Questions Arriving at a rate of almost 100 per minute, questions are the starting point of all...
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