A new category of powerful programming techniques lets you find patterns, inter-relationships, and individual-profile collective intelligence - locked in people leaving their data surfing websites, blog posts, and interact with other users. Collective Intelligence in Action is a hands-on guidebook for implementing collective intelligence concepts using Java. This book is for Java developers implement the Collective Intelligence in real, high-use applications. Examples of code that can immediately be used again and give Java developers working collective intelligence toolkit.