Community detection in signed networks by relaxing modularity optimization with orthogonal and nonnegative constraints
Sign Up to like & getrecommendations! Published in 2019 at "Neural Computing and Applications"
DOI: 10.1007/s00521-019-04597-9
Abstract: Community detection in networks including singed edges is a primary challenge that has already attracted substantial attention. In this paper, we show that this task could be reformulated as a combinatorial optimization concerning the trace… read more here.
Keywords: community; nonnegative constraints; orthogonal nonnegative; signed networks ... See more keywords
Approximately orthogonal nonnegative Tucker decomposition for flexible multiway clustering
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DOI: 10.1007/s11431-020-1827-0
Abstract: High-order tensor data are prevalent in real-world applications, and multiway clustering is one of the most important techniques for exploratory data mining and compression of multiway data. However, existing multiway clustering is based on the… read more here.
Keywords: approximately orthogonal; flexible multiway; multiway clustering; orthogonal nonnegative ... See more keywords
Randomized Algorithms for Orthogonal Nonnegative Matrix Factorization
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DOI: 10.1007/s40305-020-00322-9
Abstract: Orthogonal nonnegative matrix factorization (ONMF) is widely used in blind image separation problem, document classification, and human face recognition. The model of ONMF can be efficiently solved by the alternating direction method of multipliers and… read more here.
Keywords: orthogonal nonnegative; nonnegative matrix; matrix factorization; randomized algorithms ... See more keywords