* learned about template specialization (explicit). Seems useful, but not ideal. Note that this serves a different purpose than polymorphism, since it is done at compile-time vs. run-time.
* this template specialization can even be done with traits, and template arguments can have a default argument. (this is how nice things can be done)
* learned that virtual templated functions don't exist (CAN'T exist). However member templated functions are fine. Virtual functions inside templated class are also fine
* heard of the book "Modern C++ design"
* began work towards an implementation of message passing for Factor Graphs. The goal is to create an algorithm that will work independently of wether the is a Factor Graph or a MRF. For that I derived the base class Message Node; I use a virtual send_message. However due to problems much of the implementation is somehow ugly hacked into the visitor, which checks for the type of the node and then does the message passing accordingly.
* created new files "GraphAlgorithms.h" and "GraphAlgorithms.cc"
* some thinking about the implementation of Loopy Belief Propagation; seems not that easy with our current way of doing things
-> finish the implementation of Message passing for Factor graphs (compile; lots of work still)
-> run it, test
-> begin implementing Gibbs sampler for factor graphs.
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