Overherd is a project mainly written in JAVA and RUBY, it's free.
Overherd is an information visualization tool that makes patterns of interaction and activity in online discussion boards visible.
Overherd Project
Original Author: Kevin Nam (http://kevinnam.com) Contributors: Libby Hemphill, Ruoran Wang, Marshall Browning, Brenna Scurlock, Aalok Singhvi
Application Server / Web Server : NA Database Server : NA Application Framework and language : Java Swing
Development Environment : Netbeans IDE 6.9 or higher ( JDK 1.6 or Higher)
/app contains files related to java project
/dist files created by the IDE, contains compiled app Overherd.jar
/importers contains files related to scripts used to import content from other sources
/jars contains libraries Overherd requires
If you want to build and run Overherd locally with your own data, you need only /app and /jars.
If you want to run Overherd locally with your own data using an existing executable .jar, use /dist/Overherd.jar
Usage: java -jar Overherd.jar INPUT_FILE