Millions of tweets analyzed to measure perceived trustworthiness

By scanning 66 million tweets linked to nearly 1,400 real-world events, Georgia Institute of Technology researchers have built a language model that identifies words and phrases that lead to strong or weak perceived levels ...

Clock ticking on 2015 climate talks deal: EU

Countries around the world need to act with a sense of urgency if the 2015 UN climate change talks on cutting emissions are to have a credible outcome, a top EU official warned Friday.

Apple clashes with Amazon in e-book case

Apple attorneys in the US antitrust case on e-books went on the offensive, attacking the credibility of government witnesses and seeking to debunk key elements of the government's case.

Researcher admits mistakes in stem cell study

A blockbuster study in which US researchers reported that they had turned human skin cells into embryonic stem cells contained errors, its lead author has acknowledged.

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