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Scooped by René Z.
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11 Septembre, OGM, ondes... la science citoyenne, cette fumisterie

11 Septembre, OGM, ondes... la science citoyenne, cette fumisterie | Archivance - Miscellanées | Scoop.it
Lorsqu’en 2008 je me suis penché sur les théories du complot autour des attentats du 11 septembre 2001, je n’imaginais pas que cela m’amènerait à m’intéresser à des domaines aussi divers que les OGM, les ondes électromagnétiques ou le...
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Rescooped by René Z. from Salle de classe mondiale
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How Twitter Gets In The Way Of Knowledge

How Twitter Gets In The Way Of Knowledge | Archivance - Miscellanées | Scoop.it
Twitter has increasingly restricted access to the largest organized database of modern language in the world, despite its immense research value. It's a tragedy.

Via Pierre Levy, Dominique Demartini
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Pierre Levy's curator insight, January 7, 2013 9:44 AM

Twitter as a research database

luiy's curator insight, January 7, 2013 2:12 PM

TREC's tools for downloading tweets also have to allow for Twitter's strict rate-limiting. TREC attendees trying to download their dataset of 16 million tweets are subject to a maximum of 180 API calls every 15 minutes. Under those limits, it would take more than two weeks to get all 16 million tweets. Researchers trying to gather their own datasets would use Twitter's streaming APIs, which returns a real-time feed of tweets posted to Twitter, but the publicly-available API for that is limited to only a small fraction of total tweets to the service, around 1 percent. There is an API that allows all tweets to the service to be collected, the "firehose," but Twitter strongly limits access to it and charges a fee that is well outside the budget of most academic research.Gnip, Twitter's resellers for firehose access, charges $0.10 per thousand tweets. It would cost TREC, whose participants have no funding at all, $16,000 to get their 16 million tweets that way.

Patrizia Bertini's curator insight, January 8, 2013 12:31 AM

With millions of tweets transmitted every day, Twitter has become an important historical and cultural record and an immensely useful resource for researchers of politics, history, literature, language, and anything else you can imagine.