Search Results for author: Wenjun Wu

Found 13 papers, 3 papers with code

Semantics-Aware Attention Guidance for Diagnosing Whole Slide Images

no code implementations16 Apr 2024 Kechun Liu, Wenjun Wu, Joann G. Elmore, Linda G. Shapiro

Accurate cancer diagnosis remains a critical challenge in digital pathology, largely due to the gigapixel size and complex spatial relationships present in whole slide images.

Anatomy Multiple Instance Learning +1

Learning from Semi-Factuals: A Debiased and Semantic-Aware Framework for Generalized Relation Discovery

no code implementations12 Jan 2024 Jiaxin Wang, Lingling Zhang, Jun Liu, Tianlin Guo, Wenjun Wu

The key challenges of GRD are how to mitigate the serious model biases caused by labeled pre-defined relations to learn effective relational representations and how to determine the specific semantics of novel relations during classifying or clustering unlabeled instances.

Relation Relation Extraction +2

2D-Guided 3D Gaussian Segmentation

no code implementations26 Dec 2023 Kun Lan, Haoran Li, Haolin Shi, Wenjun Wu, Yong Liao, Lin Wang, Pengyuan Zhou

Recently, 3D Gaussian, as an explicit 3D representation method, has demonstrated strong competitiveness over NeRF (Neural Radiance Fields) in terms of expressing complex scenes and training duration.

Segmentation Semantic Segmentation

GraphRARE: Reinforcement Learning Enhanced Graph Neural Network with Relative Entropy

no code implementations15 Dec 2023 Tianhao Peng, Wenjun Wu, Haitao Yuan, Zhifeng Bao, Zhao Pengrui, Xin Yu, Xuetao Lin, Yu Liang, Yanjun Pu

To address this limitation, this paper presents GraphRARE, a general framework built upon node relative entropy and deep reinforcement learning, to strengthen the expressive capability of GNNs.

Node Classification reinforcement-learning

CLGT: A Graph Transformer for Student Performance Prediction in Collaborative Learning

1 code implementation30 Jul 2023 Tianhao Peng, Yu Liang, Wenjun Wu, Jian Ren, Zhao Pengrui, Yanjun Pu

Based on this student interaction graph, we present an extended graph transformer framework for collaborative learning (CLGT) for evaluating and predicting the performance of students.

Co-Design for Spectral Coexistence between RIS-aided MIMO Radar and MIMO Communication Systems

no code implementations4 Apr 2023 Da Li, Bo Tang, Xuyang Wang, Wenjun Wu, Lei Xue

Reconfigurable intelligent surface (RIS) refers to a signal reflection surface containing a large number of low-cost passive reflecting elements.

Constant-Modulus Waveform Design for Dual-Function Radar-Communication Systems in the Presence of Clutter

no code implementations28 Feb 2023 Wenjun Wu, Bo Tang, Xuyang Wang

We investigate the constant-modulus (CM) waveform design for dual-function radar communication systems in the presence of clutter. To minimize the interference power and enhance the target acquisition performance, we use the signal-to-interference-plus-noise-ratio as the design metric. In addition, to ensure the quality of the service for each communication user, we enforce a constraint on the synthesis error of every communication signals. An iterative algorithm, which is based on cyclic optimization, Dinkinbach's transform, and alternating direction of method of multipliers, is proposed to tackle the encountered non-convex optimization problem. Simulations illustrate that the CM waveforms synthesized by the proposed algorithm allow to suppress the clutter efficiently and control the synthesis error of communication signals to a low level.

Attacking Cooperative Multi-Agent Reinforcement Learning by Adversarial Minority Influence

1 code implementation7 Feb 2023 Simin Li, Jun Guo, Jingqiao Xiu, Pu Feng, Xin Yu, Aishan Liu, Wenjun Wu, Xianglong Liu

To achieve maximum deviation in victim policies under complex agent-wise interactions, our unilateral attack aims to characterize and maximize the impact of the adversary on the victims.

Continuous Control reinforcement-learning +4

Evolutionary Programmer: Autonomously Creating Path Planning Programs based on Evolutionary Algorithms

1 code implementation30 Mar 2022 Jiabin Lou, Rong Ding, Wenjun Wu

Concretely, the most commonly used Evolutionary Algorithms are decomposed into a series of operators, which constitute the operator library of the system.

Evolutionary Algorithms

A Comprehensive Evaluation Framework for Deep Model Robustness

no code implementations24 Jan 2021 Jun Guo, Wei Bao, Jiakai Wang, Yuqing Ma, Xinghai Gao, Gang Xiao, Aishan Liu, Jian Dong, Xianglong Liu, Wenjun Wu

To mitigate this problem, we establish a model robustness evaluation framework containing 23 comprehensive and rigorous metrics, which consider two key perspectives of adversarial learning (i. e., data and model).

Adversarial Defense

HeteroMed: Heterogeneous Information Network for Medical Diagnosis

no code implementations22 Apr 2018 Anahita Hosseini, Ting Chen, Wenjun Wu, Yizhou Sun, Majid Sarrafzadeh

To the best of our knowledge, this is the first study to use Heterogeneous Information Network for modeling clinical data and disease diagnosis.

Medical Diagnosis

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