Domain: recaptcha.net
Stories and comments across the archive that link to recaptcha.net.
Stories · 2
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Microsoft Uses Human Computing Game To Tune Bing
Al writes "Microsoft researchers have come up with a novel way to fine-tune the algorithms behind the company's new search engine, Bing: a game that harnesses human computing power to improve the results. Called Page Hunt, the game (which of course requires Silverlight to run) shows users a web page and asks them to figure out a search query that should produce the page within the first five results. The idea is to better understand user behavior and expectations and ultimately improve its search algorithms. Other human-computing projects have sought to digitize out-of-print text (reCAPTCHA) and image labeling (Google Image Labeler). Can Microsoft use a similar approach to gain the edge over its rival? Or does Google already have the edge with SearchWiki, which lets searchers re-rank its results?" -
Audio CAPTCHAs Cracked; ReCAPTCHA Remains Strong
Falkkin writes "Ars Technica reports that audio CAPTCHAs consisting of only distorted digits or letters can be easy to crack using machine learning techniques. This includes most of the audio CAPTCHAs currently in use on the Web. The reCAPTCHA team has discussed their new audio CAPTCHA, which is resistant to this attack."