Who needs an army of lawyers when you have a computer?

When Minneapolis attorney William Greene faced the task of combing through 1.3 million electronic documents in a recent case, he turned to a so-called smart computer program. Three associates selected relevant documents from a smaller sample, "teaching" their reasoning to the computer. The software's algorithms then sorted the remaining material by importance.

"We were able to get the information we needed after reviewing only 2.3 percent of the documents," said Greene, a Minneapolis-based partner at law firm Stinson Leonard Street LLP.