The java configurator located under org.policy.config is a powerful way of intializing a system. In addition, it is possible to load the application with different properties and even with a completely different functionality without having to recompile the code. This HOW-TO describes how this configurator can be used.
Areca-Backup is an open-source, easy to use and relyable backup solution for Linux and Windows that performs incremental, differential, delta and mirror backups on local hard drives, remote directories or FTP/FTPs servers.
Markov Logic Networks (MLNs) is a powerful framework that combines statistical and logical reasoning; they have been applied to many data intensive problems including information extraction, entity resolution, text mining, and natural language processing. Based on principled data management techniques, Tuffy is an MLN inference engine that achieves scalability and orders of magnitude speedup compared to prior art implementations. It is written in Java and relies on PostgreSQL. For a brief introduction to MLNs and the technical details of Tuffy, please see our technical report.
This software is a translation into C++ of the excellent Webgraph library by P. Boldi and S. Vigna. The original library, written in Java, is easy to use but hampered by some requirements of the Java virtual machine. This C++ translation attempts to preserve much of the ease of use (through integration with the Boost Graph Library), but bypass requirements imposed by a virtual machine.