Search Results for author: Weixiong Zhang

Found 16 papers, 1 papers with code

Adaptive control of dynamic networks

no code implementations20 Feb 2023 Chunyu Pan, Zhao Su, Haoyu Zheng, Changsheng Zhang, Weixiong Zhang, Xizhe Zhang

However, the efficacy of the incumbent MDS may diminish as the network topologies evolve.

NetMoST: A network-based machine learning approach for subtyping schizophrenia using polygenic SNP allele biomarkers

no code implementations31 Jan 2023 Xinru Wei, Shuai Dong, Zhao Su, Lili Tang, Pengfei Zhao, Chunyu Pan, Fei Wang, Yanqing Tang, Weixiong Zhang, Xizhe Zhang

Subtyping neuropsychiatric disorders like schizophrenia is essential for improving the diagnosis and treatment of complex diseases.

Pixel-global Self-supervised Learning with Uncertainty-aware Context Stabilizer

no code implementations2 Oct 2022 Zhuangzhuang Zhang, Weixiong Zhang

Moreover, we used Monte Carlo dropout in the stabilizer to measure uncertainty and adaptively balance the discrepancy between the representations of the same pixels in different views.

Self-Supervised Learning

RAW-GNN: RAndom Walk Aggregation based Graph Neural Network

no code implementations28 Jun 2022 Di Jin, Rui Wang, Meng Ge, Dongxiao He, Xiang Li, Wei Lin, Weixiong Zhang

Due to the homophily assumption of Graph Convolutional Networks (GCNs) that these methods use, they are not suitable for heterophily graphs where nodes with different labels or dissimilar attributes tend to be adjacent.

Representation Learning

Identification of cancer-keeping genes as therapeutic targets by finding network control hubs

no code implementations13 Jun 2022 Xizhe Zhang, Chunyu Pan, Xinru Wei, Meng Yu, Shuangjie Liu, Jun An, Jieping Yang, Baojun Wei, Wenjun Hao, Yang Yao, Yuyan Zhu, Weixiong Zhang

One of the recent approaches is based on network structural controllability that focuses on finding a control scheme and driver genes that can steer the cell from an arbitrary state to a designated state.

Response to: Significance and stability of deep learning-based identification of subtypes within major psychiatric disorders. Molecular Psychiatry (2022)

no code implementations10 Jun 2022 Xizhe Zhang, Fei Wang, Weixiong Zhang

They questioned the generalizability of our methods and the statistical significance, stability, and overfitting of the results, and proposed a pipeline for disease subtyping.

BIG-bench Machine Learning Misconceptions

Total controllability analysis discovers explainable drugs for Covid-19 treatment

no code implementations7 Jun 2022 Xinru Wei, Chunyu Pan, Xizhe Zhang, Weixiong Zhang

One such approach adopts structural controllability, a theory for controlling a network (the cell).

Heterogeneous Graph Neural Networks using Self-supervised Reciprocally Contrastive Learning

no code implementations30 Apr 2022 Cuiying Huo, Dongxiao He, Yawen Li, Di Jin, Jianwu Dang, Weixiong Zhang, Witold Pedrycz, Lingfei Wu

However, the existing contrastive learning methods are inadequate for heterogeneous graphs because they construct contrastive views only based on data perturbation or pre-defined structural properties (e. g., meta-path) in graph data while ignore the noises that may exist in both node attributes and graph topologies.

Attribute Contrastive Learning

A Survey of Community Detection Approaches: From Statistical Modeling to Deep Learning

no code implementations3 Jan 2021 Di Jin, Zhizhi Yu, Pengfei Jiao, Shirui Pan, Dongxiao He, Jia Wu, Philip S. Yu, Weixiong Zhang

We conclude with discussions of the challenges of the field and suggestions of possible directions for future research.

Community Detection

An efficient algorithm for finding all possible input nodes for controlling complex networks

1 code implementation2 Mar 2017 Xizhe Zhang, Jianfei Han, Weixiong Zhang

The main idea is to modify a maximum matching algorithm to make it efficient for finding all possible input nodes by computing only one MIS.

Discrete Mathematics Social and Information Networks Physics and Society

SAS+ Planning as Satisfiability

no code implementations18 Jan 2014 Ruoyun Huang, Yixin Chen, Weixiong Zhang

We prove the correctness of the new encoding by establishing an isomorphism between the solution plans of SASE and that of STRIPS based encodings.

An Effective Algorithm for and Phase Transitions of the Directed Hamiltonian Cycle Problem

no code implementations16 Jan 2014 Gerold Jäger, Weixiong Zhang

By combining effective algorithms for the AP and SAT, our algorithm significantly outperforms previous exact DHCP algorithms, including an algorithm based on the award-winning Concorde TSP algorithm.

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