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Binary matrix factorization via collaborative neurodynamic optimization
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DOI：10.1016/j.neunet.2024.106348.png)
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Abstract
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Binary matrix factorization is an important tool for dimension reduction for high -dimensional datasets with binary attributes and has been successfully applied in numerous areas. This paper presents a collaborative neurodynamic optimization approach to binary matrix factorization based on the original combinatorial optimization problem formulation and quadratic unconstrained binary optimization problem reformulations. The proposed approach employs multiple discrete Hopfield networks operating concurrently in search of local optima. In addition, a particle swarm optimization rule is used to reinitialize neuronal states iteratively to escape from local minima toward better ones. Experimental results on eight benchmark datasets are elaborated to demonstrate the superior performance of the proposed approach against six baseline algorithms in terms of factorization error. Additionally, the viability of the proposed approach is demonstrated for pattern discovery on three datasets.
Keywords:
Binary matrix factorization
Collaborative neurodynamic optimization
Discrete Hopfield network
Quadratic unconstrained binary optimization
Pattern discovery
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