Search Results for author: Zhiyong Feng

Found 38 papers, 4 papers with code

Re-embedding Difficult Samples via Mutual Information Constrained Semantically Oversampling for Imbalanced Text Classification

no code implementations EMNLP 2021 Jiachen Tian, Shizhan Chen, Xiaowang Zhang, Zhiyong Feng, Deyi Xiong, Shaojuan Wu, Chunliu Dou

Difficult samples of the minority class in imbalanced text classification are usually hard to be classified as they are embedded into an overlapping semantic region with the majority class.

text-classification Text Classification

Deep Learning Based Multi-Node ISAC 4D Environmental Reconstruction with Uplink- Downlink Cooperation

no code implementations23 Apr 2024 Bohao Lu, Zhiqing Wei, Huici Wu, Xinrui Zeng, Lin Wang, Xi Lu, Dongyang Mei, Zhiyong Feng

Utilizing widely distributed communication nodes to achieve environmental reconstruction is one of the significant scenarios for Integrated Sensing and Communication (ISAC) and a crucial technology for 6G.

Cramer-Rao Bounds for Near-Field Sensing: A Generic Modular Architecture

no code implementations11 Apr 2024 Chunwei Meng, Dingyou Ma, Xu Chen, Zhiyong Feng, Yuanwei Liu

A generic modular array architecture is proposed, featuring uniform/non-uniform subarray layouts that allows for flexible deployment.

Deep Cooperation in ISAC System: Resource, Node and Infrastructure Perspectives

no code implementations5 Mar 2024 Zhiqing Wei, Haotian Liu, Zhiyong Feng, Huici Wu, Fan Liu, Qixun Zhang

With the mobile communication system evolving into 6th-generation (6G), the Internet of Everything (IoE) is becoming reality, which connects human, big data and intelligent machines to support the intelligent decision making, reconfiguring the traditional industries and human life.

Attribute Simulation for Item Embedding Enhancement in Multi-interest Recommendation

no code implementations29 Nov 2023 Yaokun Liu, Xiaowang Zhang, Minghui Zou, Zhiyong Feng

Although multi-interest recommenders have achieved significant progress in the matching stage, our research reveals that existing models tend to exhibit an under-clustered item embedding space, which leads to a low discernibility between items and hampers item retrieval.

Attribute

Communication-Assisted Sensing in 6G Networks

no code implementations13 Nov 2023 Fuwang Dong, Fan Liu, Shihang Lu, Yifeng Xiong, Qixun Zhang, Zhiyong Feng

Exploring the mutual benefit and reciprocity of sensing and communication (S\&C) functions is fundamental to realizing deeper integration for integrated sensing and communication (ISAC) systems.

Channel-robust Automatic Modulation Classification Using Spectral Quotient Cumulants

no code implementations12 Oct 2023 Sai Huang, Yuting Chen, Jiashuo He, Shuo Chang, Zhiyong Feng

Specifically, we first transform the received signal to the spectral quotient (SQ) sequence by spectral circular shift division operations.

Classification

Sensing-assisted Accurate and Fast Beam Management for Cellular-connected mmWave UAV Network

no code implementations12 Oct 2023 Yanpeng Cui, Qixun Zhang, Zhiyong Feng, Qin Wen, Ying Zhou, Zhiqing Wei, Ping Zhang

This paper presents a novel sensing-assisted beam management approach, the first solution that fully utilizes the information from the visual domain to improve communication performance.

Management

Integrated Sensing and Communication Neighbor Discovery for MANET with Gossip Mechanism

no code implementations11 Oct 2023 Zhiqing Wei, Chenfei Li, Yanpeng Cui, Xu Chen, Zeyang Meng, Zhiyong Feng

In order to further reduce the convergence time of ND, this paper introduces the ISAC-enabled gossip mechanism into the ND algorithm.

Q-Learning

ISAC 4D Imaging System Based on 5G Downlink Millimeter Wave Signal

1 code implementation10 Oct 2023 Bohao Lu, Zhiqing Wei, Lin Wang, Ruiyun Zhang, Zhiyong Feng

Integrated Sensing and Communication(ISAC) has become a key technology for the 5th generation (5G) and 6th generation (6G) wireless communications due to its high spectrum utilization efficiency.

Integrated Sensing and Communication Signal Processing Based on Compressed Sensing Over Unlicensed Spectrum Bands

no code implementations4 Oct 2023 Haotian Liu, Zhiqing Wei, Fengyun Li, Yuewei Lin, Hanyang Qu, Huici Wu, Zhiyong Feng

The ISAC-enabled mobile communication system regularly operate in non-continuous spectrum bands due to crowded licensed frequency bands.

Carrier Aggregation Enabled Integrated Sensing and Communication Signal Design and Processing

no code implementations25 Sep 2023 Zhiqing Wei, Haotian Liu, Xinyi Yang, Wangjun Jiang, Huici Wu, Xingwang Li, Zhiyong Feng

The future mobile communication systems will support intelligent applications such as Internet of Vehicles (IoV) and Extended Reality (XR).

Symbol-level Integrated Sensing and Communication enabled Multiple Base Stations Cooperative Sensing

no code implementations13 Aug 2023 Zhiqing Wei, Ruizhong Xu, Zhiyong Feng, Huici Wu, Ning Zhang, Wangjun Jiang, Xiaoyu Yang

This work may provide a guideline for the design of multi-BS cooperative sensing system to exploit the widely deployed networked mobile communication system.

SLAM for Multiple Extended Targets using 5G Signal

no code implementations4 Aug 2023 Wangjun Jiang, Zhiqing Wei, Zhiyong Feng

To evaluate the performance of 5G signal in SLAM, we analyze and simulate the mapping error of 5G signal sensing by ET-GOPSA.

Simultaneous Localization and Mapping

ISAC-NET: Model-driven Deep Learning for Integrated Passive Sensing and Communication

no code implementations14 Jul 2023 Wangjun Jiang, Dingyou Ma, Zhiqing Wei, Zhiyong Feng, Ping Zhang

From the simulation results, ISAC-NET obtains better communication performance than the traditional signal demodulation algorithm, which is close to OAMP-Net2.

Coherent Compensation based ISAC Signal Processing for Long-range Sensing

no code implementations13 Jul 2023 Lin Wang, Zhiqing Wei, Liyan Su, Zhiyong Feng, Huici Wu, Dongsheng Xue

Integrated sensing and communication (ISAC) will greatly enhance the efficiency of physical resource utilization.

Toward Intelligent and Efficient 6G Networks: JCSC Enabled On-Purpose Machine Communications

no code implementations30 Jun 2023 Ping Zhang, Heng Yang, Zhiyong Feng, Yanpeng Cui, Jincheng Dai, Xiaoqi Qin, Jinglin Li, Qixun Zhang

Driven by the vision of "intelligent connection of everything" toward 6G, the collective intelligence of networked machines can be fully exploited to improve system efficiency by shifting the paradigm of wireless communication design from naive maximalist approaches to intelligent value-based approaches.

Toward Trusted and Swift UAV Communication: ISAC-Enabled Dual Identity Mapping

no code implementations30 Jun 2023 Yanpeng Cui, Zhiyong Feng, Qixun Zhang, Zhiqing Wei, Chenlong Xu, Ping Zhang

This tutorial for the intelligent and efficient UAV network brings new insight on providing dual-domain identity via ISAC technology, with an eye on trusted and swift communication research tailored for the 6G UAV network.

Intelligent Communication Management

Specific Beamforming for Multi-UAV Networks: A Dual Identity-based ISAC Approach

no code implementations28 Jun 2023 Yanpeng Cui, Qixun Zhang, Zhiyong Feng, Fan Liu, Ce Shi, Jinpo Fan, Ping Zhang

Beam alignment is essential to compensate for the high path loss in the millimeter-wave (mmWave) Unmanned Aerial Vehicle (UAV) network.

Iterative Signal Processing for Integrated Sensing and Communication Systems

no code implementations8 Jun 2023 Zhiqing Wei, Hanyang Qu, Wangjun Jiang, Kaifeng Han, Huici Wu, Zhiyong Feng

In this paper, phase coding is applied in ISAC signal design to improve the anti-noise performance of ISAC signal.

Quantization

5G PRS-Based Sensing: A Sensing Reference Signal Approach for Joint Sensing and Communication System

no code implementations21 Nov 2022 Zhiqing Wei, YuAn Wang, Liang Ma, Shaoshi Yang, Zhiyong Feng, Chengkang Pan, Qixun Zhang, Yajuan Wang, Huici Wu, Ping Zhang

In this paper, we investigate how to apply the positioning reference signal (PRS) of the 5th generation (5G) mobile communications in radar sensing.

Autonomous Driving

Geo-Spatio-Temporal Information Based 3D Cooperative Positioning in LOS/NLOS Mixed Environments

no code implementations2 Sep 2022 Yue Cao, Shaoshi Yang, Zhiyong Feng

We propose a geographic and spatio-temporal information based distributed cooperative positioning (GSTICP) algorithm for wireless networks that require three-dimensional (3D) coordinates and operate in the line-of-sight (LOS) and nonline-of-sight (NLOS) mixed environments.

Distributed Spatio-Temporal Information Based Cooperative 3D Positioning in GNSS-Denied Environments

no code implementations25 Aug 2022 Yue Cao, Shaoshi Yang, Zhiyong Feng, Lihua Wang, Lajos Hanzo

A distributed spatio-temporal information based cooperative positioning (STICP) algorithm is proposed for wireless networks that require three-dimensional (3D) coordinates and operate in the global navigation satellite system (GNSS) denied environments.

Vehicular Connectivity on Complex Trajectories: Roadway-Geometry Aware ISAC Beam-tracking

no code implementations24 May 2022 Xiao Meng, Fan Liu, Christos Masouros, Weijie Yuan, Qixun Zhang, Zhiyong Feng

In this paper, we propose sensing-assisted beamforming designs for vehicles on arbitrarily shaped roads by relying on integrated sensing and communication (ISAC) signalling. Specifically, we aim to address the limitations of conventional ISAC beam-tracking schemes that do not apply to complex road geometries.

Beam Training and Tracking in MmWave Communication: A Survey

no code implementations20 May 2022 Yi Wang, Zhiqing Wei, Zhiyong Feng

This article provides an overview of the beam training and tracking technologies on mmWave bands and reveals the insights for future research in the 6th Generation (6G) mobile network.

Learning by Erasing: Conditional Entropy based Transferable Out-Of-Distribution Detection

no code implementations23 Apr 2022 Meng Xing, Zhiyong Feng, Yong Su, Changjae Oh

For a new in-distribution (ID) dataset, existing methods require retraining to capture the dataset-specific feature representation or data distribution.

Out-of-Distribution Detection Out of Distribution (OOD) Detection

Block Modeling-Guided Graph Convolutional Neural Networks

1 code implementation27 Dec 2021 Dongxiao He, Chundong Liang, Huixin Liu, Mingxiang Wen, Pengfei Jiao, Zhiyong Feng

Graph Convolutional Network (GCN) has shown remarkable potential of exploring graph representation.

An Overview of Signal Processing Techniques for Joint Communication and Radar Sensing

1 code implementation25 Feb 2021 J. Andrew Zhang, Fan Liu, Christos Masouros, Robert W. Heath Jr., Zhiyong Feng, Le Zheng, Athina Petropulu

Joint communication and radar sensing (JCR) represents an emerging research field aiming to integrate the above two functionalities into a single system, sharing a majority of hardware and signal processing modules and, in a typical case, sharing a single transmitted signal.

Modeling Global Semantics for Question Answering over Knowledge Bases

no code implementations5 Jan 2021 Peiyun Wu, Yunjie Wu, Linjuan Wu, Xiaowang Zhang, Zhiyong Feng

Existing semantic parsing approaches mainly focus on relations matching with paying less attention to the underlying internal structure of questions (e. g., the dependencies and relations between all entities in a question) to select the query graph.

Question Answering Semantic Parsing

Exemplar Loss for Siamese Network in Visual Tracking

no code implementations20 Jun 2020 Shuo Chang, Yifan Zhang, Sai Huang, Yuanyuan Yao, Zhiyong Feng

In general, Siamese tracking algorithms, supervised by logistic loss and triplet loss, increase the value of inner product between exemplar template and positive sample while reduce the value of inner product with background sample.

Visual Tracking

Towards Universal Languages for Tractable Ontology Mediated Query Answering

no code implementations26 Nov 2019 Heng Zhang, Yan Zhang, Jia-Huai You, Zhiyong Feng, Guifei Jiang

On the negative side, we prove that there is, in general, no universal language for each of these families of languages.

SCC-rFMQ Learning in Cooperative Markov Games with Continuous Actions

no code implementations18 Sep 2018 Chengwei Zhang, Xiaohong Li, Jianye Hao, Siqi Chen, Karl Tuyls, Zhiyong Feng, Wanli Xue, Rong Chen

Although many reinforcement learning methods have been proposed for learning the optimal solutions in single-agent continuous-action domains, multiagent coordination domains with continuous actions have received relatively few investigations.

reinforcement-learning Reinforcement Learning (RL)

TrQuery: An Embedding-based Framework for Recommanding SPARQL Queries

no code implementations16 Jun 2018 Lijing Zhang, Xiaowang Zhang, Zhiyong Feng

In this paper, we present an embedding-based framework (TrQuery) for recommending solutions of a SPARQL query, including approximate solutions when exact querying solutions are not available due to incompleteness or inconsistencies of real-world RDF data.

Graph Matching

Parametric T-Spline Face Morphable Model for Detailed Fitting in Shape Subspace

no code implementations CVPR 2017 Weilong Peng, Zhiyong Feng, Chao Xu, Yong Su

As any pre-learnt subspace is not complete to handle the variety and details of faces and expressions, it covers a limited span of morphing.

B-spline Shape from Motion & Shading: An Automatic Free-form Surface Modeling for Face Reconstruction

no code implementations21 Jan 2016 Weilong Peng, Zhiyong Feng, Chao Xu

In this paper, B-spline Shape from Motion and Shading (BsSfMS) is proposed to reconstruct continuous B-spline surface for multi-view face images, according to an assumption that shading and motion information in the images contain 1st- and 0th-order derivative of B-spline face respectively.

Face Reconstruction

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