Search Results for author: ZhiGang Liu

Found 6 papers, 1 papers with code

Doping: A technique for efficient compression of LSTM models using sparse structured additive matrices

no code implementations14 Feb 2021 Urmish Thakker, Paul N. Whatmough, ZhiGang Liu, Matthew Mattina, Jesse Beu

Additionally, results with doped kronecker product matrices demonstrate state-of-the-art accuracy at large compression factors (10 - 25x) across 4 natural language processing applications with minor loss in accuracy.

Small traffic sign detection from large image

no code implementations journal 2019 ZhiGang Liu, Dongyu Li, Shuzhi Sam Ge, Feng Tian

It concatenates the features of the different layers into a fused feature map to provide sufficient information for small traffic sign detection.

object-detection Region Proposal +2

Generalized Nesterov's Acceleration-incorporated Non-negative and Adaptive Latent Factor Analysis

no code implementations IEEE Transactions on Services Computing 2021 Xin Luo, Yue Zhou, ZhiGang Liu, Lun Hu, Mengchu Zhou

A non-negative latent factor (NLF) model with a single latent factor-dependent, non-negative and multiplicative update (SLF-NMU) algorithm is frequently adopted to extract useful knowledge from non-negative data represented by high-dimensional and sparse (HiDS) matrices arising from various service applications.

Computational Efficiency

High-order Order Proximity-Incorporated, Symmetry and Graph-Regularized Nonnegative Matrix Factorization for Community Detection

no code implementations8 Mar 2022 ZhiGang Liu, Xin Luo

Community describes the functional mechanism of a network, making community detection serve as a fundamental graph tool for various real applications like discovery of social circle.

Community Detection

A Constraints Fusion-induced Symmetric Nonnegative Matrix Factorization Approach for Community Detection

no code implementations23 Feb 2023 ZhiGang Liu, Xin Luo

Community is a fundamental and critical characteristic of an undirected social network, making community detection be a vital yet thorny issue in network representation learning.

Community Detection Representation Learning

Constraint-Induced Symmetric Nonnegative Matrix Factorization for Accurate Community Detection

1 code implementation journal 2023 ZhiGang Liu, Xin Luo, Zidong Wang, Xiaohui Liu

Motivated by this discovery, this paper proposes a novel Constraintinduced Symmetric Nonnegative Matrix Factorization (C-SNMF) model that adopts three-fold ideas: a) Representing a target undirected network with multiple latent feature matrices, thus preserving its representation learning capacity; b) Incorporating a symmetry-regularizer into its objective function, which preserves the symmetry of the learnt low-rank approximation to the adjacency matrix, thereby making the resultant detector precisely illustrate the target network’s symmetry; and c) Introducing a graph-regularizer that preserves local invariance of the network’s intrinsic geometry into its learning objective, thus making the achieved detector well-aware of community structure within the target network.

Community Detection Representation Learning

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