2021

A Comprehensive Survey and Experimental Comparison of Graph-Based Approximate Nearest Neighbor Search

Wang, Mengzhao, Xu, Xiaoliang, Yue, Qiang et al.

Understand

Approximate nearest neighbor search (ANNS) constitutes an important operation in a multitude of applications, including recommendation systems, information retrieval, and pattern recognition.

  • In the past decade, graph-based ANNS algorithms have been the leading paradigm in this domain, with dozens of graph-based ANNS algorithms proposed.
  • Such algorithms aim to provide effective, efficient solutions for retrieving the nearest neighbors for a given query.
  • Nevertheless, these efforts focus on developing and optimizing algorithms with different approaches, so there is a real need for a comprehensive survey about the approaches' relative performance, strengths, and pitfalls.

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