Improving Hamming-Distance Computation for Adaptive Similarity Search Approach

Author:

Singh Vikram1ORCID,Kumar Chandradeep1

Affiliation:

1. National Institute of Technology, Kurukshetra, India

Abstract

In the modern context, the similarity is determined by content preserving stimuli, retrieval of relevant ‘nearest neighbor’s objects and the way similar objects are pursued. Current similarity search in hamming-space based strategies finds all the data objects within a threshold hamming-distance for a user query. Though, the number of computations for distance and candidate generation are key concerns from the many years. The hamming-space paradigm extends the range of alternatives for an optimized search experience. A novel ‘counting based similarity search strategy is proposed, with an improved hamming-space, e.g. optimized candidate generation and verification function. The strategy adapts towards the lesser set of user query dimensions and subsequently constraints the hamming-space computations with each data objects, driven by generated statistics. The extensive evaluation asserts that the proposed ‘counting based approach can be combined with any pigeonhole principle-based similarity search to further improve its performance.

Publisher

IGI Global

Subject

Decision Sciences (miscellaneous),Information Systems

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