Improving sparse word similarity models with asymmetric measures

@inproceedings{Gawron2014ImprovingSW,
  title={Improving sparse word similarity models with asymmetric measures},
  author={Jean Mark Gawron},
  booktitle={ACL},
  year={2014}
}
We show that asymmetric models based on Tversky (1977) improve correlations with human similarity judgments and nearest neighbor discovery for both frequent and middle-rank words. In accord with Tversky’s discovery that asymmetric similarity judgments arise when comparing sparse and rich representations, improvement on our two tasks can be traced to heavily weighting the feature bias toward the rarer word when comparing highand midfrequency words. 

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