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On the Role of Information Retrieval and Information Extraction in Question Answering Systems.

Dan I. MoldovanMihai Surdeanu
Published in: SCIE (2002)
Keyphrases
  • question answering systems
  • question answering
  • question classification
  • natural language
  • information retrieval systems
  • document retrieval
  • ground truth
  • machine learning
  • passage retrieval