Questions about Comparison Question Answering Systems
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I started a survey for Question Answering Systems and I would like up-to-date information about the field. I would help with the following questions:
- Comparison text (unstructured) Question Answering System vs unstructured Question Answering System. (Specifically, what kind of question is particularly suited to each one. For example aggregate query is more suited to structured data because the system can use tools such as SQL, SPARQL over data to do it).
- The internal meaning representation model of the question. What kind of question can this model handle? (simple, compositional, reasoning .... ).
- Hybrid approaches.
Any suggestion is welcome (comment, link to useful materials, challenges of the domain, trends, ...).
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