Luca de Alfaro [Associate Professor of Computer Engineering, UC Santa Cruz]
Abstract:
The Wikipedia is a collaborative encyclopedia: anyone can contribute to its articles simply by clicking on an...
Luca de Alfaro [Associate Professor of Computer Engineering, UC Santa Cruz] Abstract:
The Wikipedia is a collaborative encyclopedia: anyone can contribute to its articles simply by clicking on an "edit'' button. The open nature of the Wikipedia has been key to its success, but has a flip side: if anyone can edit, how can readers know whether to trust its content?
To help answer this question, we have developed a reputation system for Wikipedia authors, and a trust system for Wikipedia text. Authors gain reputation when their contributions are long-lived, and they lose reputation when their contributions are undone in short order. Each word in the Wikipedia is assigned a value of trust that depends on the reputation of its author, as well as on the reputation of the authors that subsequently revised the text where the word appears. To validate our algorithms, we show that reputation and trust have good predictive value: higher-reputation authors are more likely to give lasting contributions, and higher-trust text is less likely to be edited.
The trust can be visualized via an intuitive coloring of the text background. The coloring provides an effective way of spotting attempts to tamper with Wikipedia information. A trust-colored version of the entire English Wikipedia can be browsed at http://trust.cse.ucsc.edu/
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Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z am i alive? srry i thought the video was 100 years. copy and paste this right here or you will die of bordem
What do you think it does to your credibility to give a presentation that's entirely in BLOODY COMIC SANS MS. What, did your 12-year old help you prepare the slides? Do you want us to think that your slides are cute, hand-drawn, unassuming? WHY? WHY?
15 minutes in, at "Editing longetivity" I died. Sorry but this is just too boring, and the man's accent is difficult to understand...
SO BORING!
Anyways I think Wikipedia is good for random facts, and is a starting place. After you find it on Wikipedia, you "Google" search for the info you found, and if you can find it on other websites, use them as sources.
..i know from intern-informations,that the wikipedia is "friend" of jehovas and nazis...they are use this pages to bring their own version of the sight ,of this planet...and they are use this pages ,to bring informations ,around the world-and they are only spread their own interests and the most time wrong informations ,about many historial-facts or many things ,more!!!!wikipedia ,is open from the organisation-who is one ,of the jehovas.
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please tell me, its important
copy and paste this right here or you will die of bordem
SO BORING!
Anyways I think Wikipedia is good for random facts, and is a starting place. After you find it on Wikipedia, you "Google" search for the info you found, and if you can find it on other websites, use them as sources.