If I fix the values of the observed nodes of an MRF, does it become a CRF?
Solved – What’s the difference between a Markov Random Field and a Conditional Random Field
conditional-random-fieldgraph theorygraphical-modelmarkov random fieldprobability
Best Answer
Ok, I found the answer myself:
Conditinal Random Fields (CRFs) are a special case of Markov Random Fields (MRFs).
Source: Blake, Kohli and Rother: Markov random fields for vision and image processing. 2011.
Source: Kevin P. Murphy: Machine Learning: A Probabilistic Perspective
Answering my question:
Yes. Fixing the values is the same as conditioning on them. However, you should note that there are differences in training, too.
Watching many of the lectures about PGM (probabilistic graphical models) on coursera helped me a lot.