From symbolic to sub-symbolic information in question classification

  title={From symbolic to sub-symbolic information in question classification},
  author={Jo{\~a}o Pedro Carlos Gomes da Silva and Lu{\'i}sa Coheur and Ana Cristina Mendes and Andreas Wichert},
  journal={Artificial Intelligence Review},
Question Answering (QA) is undoubtedly a growing field of current research in Artificial Intelligence. Question classification, a QA subtask, aims to associate a category to each question, typically representing the semantic class of its answer. This step is of major importance in the QA process, since it is the basis of several key decisions. For instance, classification helps reducing the number of possible answer candidates, as only answers matching the question category should be taken into… CONTINUE READING
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