Short algorithm, long-range consequences

In the last decade, theoretical computer science has seen remarkable progress on the problem of solving graph Laplacians—the esoteric name for a calculation with hordes of familiar applications in scheduling, image processing, ...

Key to Netflix's future: better recommendations

(AP) -- Netflix executives John Ciancutti and Todd Yellin are trying to create a video-recommendation system that knows you better than an old friend. It's a critical mission as Netflix faces pressure from its Internet video ...

Tapjoy calms mobile 'app' storm

Startup Tapjoy on Thursday set out to woo smartphone and tablet computer lovers with a marketplace that makes it easy to find and use applications suited to their tastes.

Wealthfront lets regular folks invest like the rich

Startup Wealthfront has revamped its online service to give middle- and lower-income people in the United States investment tools typically reserved for the rich to make profit on their money.