TweetyProject is a collection of various Java libraries that implement approaches to different areas of
artificial intelligence. In particular, it provides a general interface layer for doing research and working
with different knowledge representation formalisms such as classical logics, conditional logics, probabilistic
logics, and argumentation. Furthermore, TweetyProject contains libraries for dealing with agents, multi-agent
systems, and dialog systems for agents, as well as belief revision, preference reasoning, preference
aggregation, and action languages. A series of utility libraries that deal with e.g. mathematical optimization
complement the collection.