I've been struggling with the connection between knowledge-based AI systems and Bayesian inference for a while now. While I continue to sweep through the literature, I would be happy if someone can answer these more specific questions directly
Are Bayesian inference based methods used in reasoning or Q/A systems -- to arrive at conclusions about questions whose answers are not directly present in the knowledge base?
In other words, if a Q/A system doesn't find an answer in a knowledge base, can it use Bayesian inference to use the available facts to suggest answers with varying likelihoods?
If yes, could you point me to some implementations?