Search Engine vs. Question Answering


  • SE = Answers in results , QA = Answers is results
  • SE = Queries based on Keywords, QA = Queries in Natural Language (Question)
  • SE = Keywords and Ranking retrieve results, QA = Some NLP determine answers ( Who=>Person)
  • SEs treat the question as keyword queries, ignore the semantic relations between words
  • SEs is poor performance for long queries


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