Spiking Locality-Sensitive Hash: Spiking Computation with Phase Encoding Method

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Abstract

A novel similarity search method, named spiking locality sensitive hash (SLSH), a forward spiking neuron network(SNN) is proposed in this paper. The SLSH architecture is composed of successively connected encoding and fully connected layer. We optimize phase encoding to maximize the difference between corresponding pixels of any two different images. Then we test the performance of the encoding method and the SLSH model on graphic datasets. Experimental results prove that improved phase encoding method based on the difference exhibits the accuracy of 100%, 100% and 92%, which has superiority over previous phase encoding whose accuracies are 93%, 78% and 55% when the noise level is 5%, 20% and 40% respectively. Furthermore, experiments demonstrate that SLSH method is more capable than the traditional Locality-Sensitive Hash(LSH) and the FLY algorithm published in SCIENCE in similarity search. The mean average precision of SLSH is twice of FLY algorithm when the hash length is 5. In addition, the SLSH achieves a good recognition performance even under the influence of noise for MNIST, SVHN and SIFT datasets.

Original languageEnglish
Title of host publication2018 International Joint Conference on Neural Networks, IJCNN 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509060146
DOIs
StatePublished - 10 Oct 2018
Event2018 International Joint Conference on Neural Networks, IJCNN 2018 - Rio de Janeiro, Brazil
Duration: 8 Jul 201813 Jul 2018

Publication series

NameProceedings of the International Joint Conference on Neural Networks
Volume2018-July

Conference

Conference2018 International Joint Conference on Neural Networks, IJCNN 2018
Country/TerritoryBrazil
CityRio de Janeiro
Period8/07/1813/07/18

Keywords

  • Locality-Sensitive Hash
  • Similarity search
  • phase encoding
  • spiking neuron network

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