Paraphrase-Driven Learning for Open Question Answering

@inproceedings{Fader2013ParaphraseDrivenLF,
  title={Paraphrase-Driven Learning for Open Question Answering},
  author={Anthony Fader and Luke S. Zettlemoyer and Oren Etzioni},
  booktitle={ACL},
  year={2013}
}
We study question answering as a machine learning problem, and induce a function that maps open-domain questions to queries over a database of web extractions. Given a large, community-authored, question-paraphrase corpus, we demonstrate that it is possible to learn a semantic lexicon and linear ranking function without manually annotating questions. Our approach automatically generalizes a seed lexicon and includes a scalable, parallelized perceptron parameter estimation scheme. Experiments… CONTINUE READING

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