A Hierarchical Bayesian Model for Unsupervised Induction of Script Knowledge

By Lea Frermann, Ivan Titov, Manfred Pinkal. 2014

51 citations recorded by the source corpus.

Scripts representing common sense knowledge about stereotyped sequences of events have been shown to be a valuable resource for NLP applications. We present a hierarchical Bayesian model for unsupervised learning of script knowledge from crowdsourced descriptions of human activities. Events and constraints on event ordering are induced jointly in one unified framework. We use a statistical model over permutations which captures event ordering constraints in a more flexible way than previous approaches. In order to alleviate the sparsity problem caused by using relatively small datasets, we incorporate in our hierarchical model an informed prior on word distributions. The resulting model substantially outperforms a state-of-the-Art method on the event ordering task. © 2014 Association for Computational Linguistics.

Subfields: Artificial Intelligence, Natural Language Processing

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In Artificial Intelligence

  1. Yejin Choi
  2. Mohit Bansal
  3. Luke S. Zettlemoyer
  4. Noah A. Smith
  5. Percy Liang
  6. Hannaneh Hajishirzi
  7. Jianfeng Gao
  8. Dan Roth

In Natural Language Processing

  1. Yejin Choi
  2. Mohit Bansal
  3. Luke S. Zettlemoyer
  4. Sameer Singh
  5. Noah A. Smith
  6. Dan Roth
  7. Hannaneh Hajishirzi
  8. Daniel Khashabi

Citations in the corpus