An Analysis of Vector Space Models Based on Computational Geometry

  title={An Analysis of Vector Space Models Based on Computational Geometry},
  author={Zhiwei Wang and S. K. Michael Wong and Yiyu Yao},
This paper analyzes the properties, structures and limitations of vector-based models for information retrieval from the computational geometry point of view. It is shown that both the pseudo-cosine and the standard vector space models can be viewed as special cases of a generalized linear model. More importantly, both the necessary and sufficient conditions have been identified, under which ranking functions such as the inner-product, cosine, pseudo-cosine, Dice, covariance and product-moment… CONTINUE READING
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