Similarity Search with Implicit Object Features

نویسندگان

  • Yi Luo
  • Zheng Liu
  • Xuemin Lin
  • Wei Wang
  • Jeffrey Xu Yu
چکیده

Driven by many real applications, in this paper we study the problem of similarity search with implicit object features; that is, the features of each object are not pre-computed/evaluated. As the existing similarity search techniques are not applicable, a novel and efficient algorithm is developed in this paper to approach the problem. The R-tree based algorithm consists of two steps: feature evaluation and similarity search. Our performance evaluation demonstrates that the algorithm is very efficient for large spatial datasets.

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تاریخ انتشار 2005