Search Results for author: Jiayi Zhang

Found 26 papers, 12 papers with code

Audio-Visual Segmentation

1 code implementation11 Jul 2022 Jinxing Zhou, Jianyuan Wang, Jiayi Zhang, Weixuan Sun, Jing Zhang, Stan Birchfield, Dan Guo, Lingpeng Kong, Meng Wang, Yiran Zhong

To deal with the AVS problem, we propose a novel method that uses a temporal pixel-wise audio-visual interaction module to inject audio semantics as guidance for the visual segmentation process.

Segmentation

Audio-Visual Segmentation with Semantics

1 code implementation30 Jan 2023 Jinxing Zhou, Xuyang Shen, Jianyuan Wang, Jiayi Zhang, Weixuan Sun, Jing Zhang, Stan Birchfield, Dan Guo, Lingpeng Kong, Meng Wang, Yiran Zhong

To deal with these problems, we propose a new baseline method that uses a temporal pixel-wise audio-visual interaction module to inject audio semantics as guidance for the visual segmentation process.

Segmentation Semantic Segmentation +1

C3KG: A Chinese Commonsense Conversation Knowledge Graph

1 code implementation6 Apr 2022 Dawei Li, Yanran Li, Jiayi Zhang, Ke Li, Chen Wei, Jianwei Cui, Bin Wang

Existing commonsense knowledge bases often organize tuples in an isolated manner, which is deficient for commonsense conversational models to plan the next steps.

C^3KG: A Chinese Commonsense Conversation Knowledge Graph

1 code implementation Findings (ACL) 2022 Dawei Li, Yanran Li, Jiayi Zhang, Ke Li, Chen Wei, Jianwei Cui, Bin Wang

Existing commonsense knowledge bases often organize tuples in an isolated manner, which is deficient for commonsense conversational models to plan the next steps.

Writing Polishment with Simile: Task, Dataset and A Neural Approach

1 code implementation15 Dec 2020 Jiayi Zhang, Zhi Cui, Xiaoqiang Xia, Yalong Guo, Yanran Li, Chen Wei, Jianwei Cui

In this paper, we propose a new task of Writing Polishment with Simile (WPS) to investigate whether machines are able to polish texts with similes as we human do.

Learning Audio-Visual Source Localization via False Negative Aware Contrastive Learning

1 code implementation CVPR 2023 Weixuan Sun, Jiayi Zhang, Jianyuan Wang, Zheyuan Liu, Yiran Zhong, Tianpeng Feng, Yandong Guo, Yanhao Zhang, Nick Barnes

Based on this observation, we propose a new learning strategy named False Negative Aware Contrastive (FNAC) to mitigate the problem of misleading the training with such false negative samples.

Contrastive Learning

Energy-Efficient Cell-Free Massive MIMO Through Sparse Large-Scale Fading Processing

1 code implementation29 Aug 2022 Shuaifei Chen, Jiayi Zhang, Emil Björnson, Özlem Tuğfe Demir, Bo Ai

In this paper, we propose a sparse distributed processing design for CF mMIMO, where the AP-UE association and long-term signal processing coefficients are jointly optimized.

Reasoning in Dialog: Improving Response Generation by Context Reading Comprehension

1 code implementation14 Dec 2020 Xiuying Chen, Zhi Cui, Jiayi Zhang, Chen Wei, Jianwei Cui, Bin Wang, Dongyan Zhao, Rui Yan

Hence, in this paper, we propose to improve the response generation performance by examining the model's ability to answer a reading comprehension question, where the question is focused on the omitted information in the dialog.

Multi-Task Learning Reading Comprehension +1

Using Think-Aloud Data to Understand Relations between Self-Regulation Cycle Characteristics and Student Performance in Intelligent Tutoring Systems

1 code implementation9 Dec 2023 Conrad Borchers, Jiayi Zhang, Ryan S. Baker, Vincent Aleven

We discuss system re-design opportunities to add SRL support during stages of processing and paths forward for using machine learning to speed research depending on the assessment of SRL based on transcription of think-aloud data.

EnsembleGAN: Adversarial Learning for Retrieval-Generation Ensemble Model on Short-Text Conversation

no code implementations30 Apr 2020 Jiayi Zhang, Chongyang Tao, Zhenjing Xu, Qiaojing Xie, Wei Chen, Rui Yan

Aiming at generating responses that approximate the ground-truth and receive high ranking scores from the discriminator, the two generators learn to generate improved highly relevant responses and competitive unobserved candidates respectively, while the discriminative ranker is trained to identify true responses from adversarial ones, thus featuring the merits of both generator counterparts.

Language Modelling Retrieval +1

Structured Massive Access for Scalable Cell-Free Massive MIMO Systems

no code implementations18 Jun 2020 Shuaifei Chen, Jiayi Zhang, Emil Björnson, Jing Zhang, Bo Ai

However, there are still many unsolved practical issues in cell-free massive MIMO systems, whereof scalable massive access implementation is one of the most vital.

Fairness

Physical Layer Security Enhancement With Reconfigurable Intelligent Surface-Aided Networks

no code implementations1 Dec 2020 Jiayi Zhang, Hongyang Du, Qiang Sun, Derrick Wing Kwan Ng, Bo Ai

Reconfigurable intelligent surface (RIS)-aided wireless communications have drawn significant attention recently.

Information Theory Signal Processing Information Theory

Coverage Probability Analysis of IRS-Aided Communication Systems

no code implementations6 Dec 2020 Zhuangzhuang Cui, Ke Guan, Jiayi Zhang, Zhangdui Zhong

The intelligent reflective surface (IRS) technology has received many interests in recent years, thanks to its potential uses in future wireless communications, in which one of the promising use cases is to widen coverage, especially in the line-of-sight-blocked scenarios.

Deep Learning-Based Power Control for Uplink Cell-Free Massive MIMO Systems

no code implementations18 Oct 2021 Yongshun Zhang, Jiayi Zhang, Yu Jin, Stefano Buzzi, Bo Ai

In this paper, a general framework for deep learning-based power control methods for max-min, max-product and max-sum-rate optimization in uplink cell-free massive multiple-input multiple-output (CF mMIMO) systems is proposed.

Reconfigurable Intelligent Surface-Aided Joint Radar and Covert Communications: Fundamentals, Optimization, and Challenges

no code implementations5 Mar 2022 Hongyang Du, Jiawen Kang, Dusit Niyato, Jiayi Zhang, Dong In Kim

Thus, we first apply covert communication into JRC and propose a joint radar and covert communication (JRCC) system to achieve high spectrum utilization and secure data transmission simultaneously.

Autonomous Vehicles

Reconfigurable Intelligent Surface (RIS)-aided Vehicular Networks: Their Protocols, Resource Allocation, and Performance

no code implementations5 Mar 2022 Yuanbin Chen, Ying Wang, Jiayi Zhang, Ping Zhang, Lajos Hanzo

Reconfigurable intelligent surfaces (RISs) assist in paving the way for the evolution of conventional vehicular networks to autonomous driving.

Autonomous Driving

Exploiting Deep Reinforcement Learning for Edge Caching in Cell-Free Massive MIMO Systems

no code implementations26 Aug 2022 Yu Zhang, Shuaifei Chen, Jiayi Zhang

Cell-free massive multiple-input-multiple-output is promising to meet the stringent quality-of-experience (QoE) requirements of railway wireless communications by coordinating many successional access points (APs) to serve the onboard users coherently.

reinforcement-learning Reinforcement Learning (RL)

Hard Exudate Segmentation Supplemented by Super-Resolution with Multi-scale Attention Fusion Module

no code implementations17 Nov 2022 Jiayi Zhang, Xiaoshan Chen, Zhongxi Qiu, Mingming Yang, Yan Hu, Jiang Liu

Specifically, we propose a fusion module named Multi-scale Attention Fusion (MAF) module for our dual-stream framework to effectively integrate features of the two tasks.

Boundary Detection Segmentation +1

Learning towards Selective Data Augmentation for Dialogue Generation

no code implementations17 Mar 2023 Xiuying Chen, Mingzhe Li, Jiayi Zhang, Xiaoqiang Xia, Chen Wei, Jianwei Cui, Xin Gao, Xiangliang Zhang, Rui Yan

As it is cumbersome and expensive to acquire a huge amount of data for training neural dialog models, data augmentation is proposed to effectively utilize existing training samples.

Data Augmentation Dialogue Generation +1

Generative AI-aided Joint Training-free Secure Semantic Communications via Multi-modal Prompts

no code implementations5 Sep 2023 Hongyang Du, Guangyuan Liu, Dusit Niyato, Jiayi Zhang, Jiawen Kang, Zehui Xiong, Bo Ai, Dong In Kim

The system jointly optimizes the diffusion step, jamming, and transmitting power with the aid of the generative diffusion models, enabling successful and secure transmission of the source messages.

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