Now that the basic concepts of predictive coding have seen some judicial approval, those who attended last week’s LegalTech New York exhibit got to see some fresh angles on the controversial technology.

Predictive coding — software using data analytics, guided by attorneys, to find relevant case documents — was all the rage at LegalTech New York in January 2012. By the end of the year, almost every major e-discovery company developed its own system, or licensed software from companies such as Content Analyst Co., Equivo Inc., and OrcaTec. A trend shaping up for 2013 are systems that offer alternatives to the current approaches.