Open Source Question Answering Frameworks [closed]

Question

Is anyone aware of any machine learning question-answering frameworks? The only ones I'm currently aware of are Ephyra and Qanus, but they both seem like academic toys that haven't had much development and have since died. I couldn't even get Qanus to run, as it seems to have several dependencies that aren't terribly well documented.

Note, I'm not talking about OpenQA/StackOverflow-like social web QA frameworks, or proprietary black-box web services like Wolfram Alpha or True Knowledge.

Answer 1

Have you also checked out Qanda? I think that the reason why most of these projects are dormant/abandoned is that the real difficulty for a question answering system does not really lie in algorithms and coding, but rather in building a knowledge corpus, which involves a lot of painstaking labor.

Also, results will tend to be much better if the system is domain-specific rather than general purpose, because you can tailor the corpus for a particular set of subjects.