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Algorithms judge the relevance of microblog posts containing 140 characters or less.
The messages are hard for machines to interpret, but a new approach could help.
Some say that Twitter may be as important to real-time search as YouTube is to video.
Platforms that combine networking with user interfaces will help companies test post-PC ideas.
Police can obtain huge quantities of social network data but must sort out the junk to glean useful information.
It’s possible—though not always foolproof—to get embarrassing things taken down. Voluntary data-labeling standards could make it even easier.