Pivot Selection for Narrow Sketches by Optimization Algorithms

Autor: Kouichi Hirata, Naoya Higuchi, Yasunobu Imamura, Tetsuji Kuboyama, Vladimir Mic, Takeshi Shinohara
Rok vydání: 2020
Předmět:
Zdroj: Similarity Search and Applications ISBN: 9783030609351
SISAP
Popis: Sketches are compact bit strings that are considered as products of an LSH for high-dimensional data. We use them in filtering for narrowing down solution candidates in similarity search. We propose a pivot selection method for narrow sketches with a length such as 16-bits by optimization algorithms with the accuracy of filtering itself as the objective function.
Databáze: OpenAIRE