Search Results for author: Qiaosheng Zhang

Found 11 papers, 0 papers with code

Community Detection in the Multi-View Stochastic Block Model

no code implementations17 Jan 2024 Yexin Zhang, Zhongtian Ma, Qiaosheng Zhang, Zhen Wang, Xuelong Li

This paper considers the problem of community detection on multiple potentially correlated graphs from an information-theoretical perspective.

Community Detection Stochastic Block Model

Matrix Completion with Hypergraphs:Sharp Thresholds and Efficient Algorithms

no code implementations16 Jan 2024 Zhongtian Ma, Qiaosheng Zhang, Zhen Wang

Theoretical analyses show that our algorithm succeeds with high probability as long as the sample probability exceeds the aforementioned threshold, and this theoretical result is further validated by synthetic experiments.

Matrix Completion

MVPatch: More Vivid Patch for Adversarial Camouflaged Attacks on Object Detectors in the Physical World

no code implementations29 Dec 2023 Zheng Zhou, Hongbo Zhao, Ju Liu, Qiaosheng Zhang, Liwei Geng, Shuchang Lyu, Wenquan Feng

Our method employs a model-perception-based approach that reduces the object confidence scores of several object detectors to boost the transferability of adversarial patches.

Object object-detection +1

Mutual Information Learned Regressor: an Information-theoretic Viewpoint of Training Regression Systems

no code implementations23 Nov 2022 Jirong Yi, Qiaosheng Zhang, Zhen Chen, Qiao Liu, Wei Shao, Yusen He, Yaohua Wang

We first argue that the MSE minimization approach is equivalent to a conditional entropy learning problem, and then propose a mutual information learning formulation for solving regression problems by using a reparameterization technique.

regression

Mutual Information Learned Classifiers: an Information-theoretic Viewpoint of Training Deep Learning Classification Systems

no code implementations3 Oct 2022 Jirong Yi, Qiaosheng Zhang, Zhen Chen, Qiao Liu, Wei Shao

Deep learning systems have been reported to acheive state-of-the-art performances in many applications, and one of the keys for achieving this is the existence of well trained classifiers on benchmark datasets which can be used as backbone feature extractors in downstream tasks.

Binary Classification Data Augmentation

Mutual Information Learned Classifiers: an Information-theoretic Viewpoint of Training Deep Learning Classification Systems

no code implementations21 Sep 2022 Jirong Yi, Qiaosheng Zhang, Zhen Chen, Qiao Liu, Wei Shao

Deep learning systems have been reported to achieve state-of-the-art performances in many applications, and a key is the existence of well trained classifiers on benchmark datasets.

Binary Classification

Exact Recovery in the General Hypergraph Stochastic Block Model

no code implementations11 May 2021 Qiaosheng Zhang, Vincent Y. F. Tan

This paper investigates fundamental limits of exact recovery in the general d-uniform hypergraph stochastic block model (d-HSBM), wherein n nodes are partitioned into k disjoint communities with relative sizes (p1,..., pk).

Clustering Stochastic Block Model

MC2G: An Efficient Algorithm for Matrix Completion with Social and Item Similarity Graphs

no code implementations8 Jun 2020 Qiaosheng Zhang, Geewon Suh, Changho Suh, Vincent Y. F. Tan

In this paper, we design and analyze MC2G (Matrix Completion with 2 Graphs), an algorithm that performs matrix completion in the presence of social and item similarity graphs.

Clustering Matrix Completion +1

Optimal Change-Point Detection with Training Sequences in the Large and Moderate Deviations Regimes

no code implementations13 Mar 2020 Haiyun He, Qiaosheng Zhang, Vincent Y. F. Tan

This paper investigates a novel offline change-point detection problem from an information-theoretic perspective.

Change Point Detection

Community Detection and Matrix Completion with Social and Item Similarity Graphs

no code implementations6 Dec 2019 Qiaosheng Zhang, Vincent Y. F. Tan, Changho Suh

We consider the problem of recovering a binary rating matrix as well as clusters of users and items based on a partially observed matrix together with side-information in the form of social and item similarity graphs.

Community Detection Matrix Completion +1

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