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21st International Conference on Networking, Sensing and Control, ICNSC 2024

作者： Tian, Wenyang Wang, Feiyang Zuo, Xingquan School of Computer Science Beijing University of Posts and Telecommunications Beijing China Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education Beijing China

ISBN: (纸本)9798350365221

Bus scheduling is vital to ensure service quality and save operational costs. Current studies typically consider the problem as an optimization problem and solve it using exact or heuristic approaches. In this paper, we consider the problem as a sequential decision-making problem and propose an Evolutionary Neural Network-based Approach (ENNA) for it. A neural network is used to make a decision at each departure time in the bus timetable. It selects which bus should depart at that specific time. By this means, a complete bus scheduling scheme is generated by a series of decisions made by the neural network. The structure and weights of the neural network are optimized by a genetic algorithm. To meet the real-world operational needs of bus duty types and improve bus utilization, we design a bus duty type transition rule that dynamically decides the duty type of buses. Experimental results demonstrate that the proposed ENNA outperforms manual scheduling schemes and can generate bus scheduling schemes with fewer buses. © 2024 IEEE.

关键词： Genetic algorithms

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An Efficient Batch Verification Scheme for SM2 Signatures 8

An Efficient Batch Verification Scheme for SM2 Signatures

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8th International Conference on Dependable Systems and Their Applications, DSA 2021

作者： Liu, Dingning Yuan, Yuyu Xue, Tengfei Chen, Lei Beijing University of Posts and Telecommunications Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education China Huawei Technologies Co. Ltd China

ISBN: (纸本)9781665443913

SM2 cryptographic algorithm is an elliptic curve public key algorithm released by China's State Cryptography Administration, which includes digital signature algorithms, key exchange protocols, public key encryption algorithms, etc. As SM2 is widely used in identity authentication and authorization services in scenarios such as e-government, e-commerce and national economy, we found that there is less research on batch verification scheme for SM2 signatures to improve the performance of multi-verification tasks. In this paper, we provide an efficient batch verification scheme for SM2 signatures which is based on the public key verification and calculation of original algorithm. Different from single verification at a time, it can improve the calculation speed by verifying multiple signatures together. Aiming at the possibility of future use in industrial applications, we then provide a highly available implementation of the algorithm. Also, we discuss the verification performance for different quantity of signers and signatures. © 2021 IEEE.

关键词： Electronic document identification systems

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Incorporate Personas and Emotions into Dialog Generation 5

Incorporate Personas and Emotions into Dialog Generation

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5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023

作者： Wu, Yufeng Liu, Chengyu Guo, Wenjian Beijing University of Posts and Telecommunications Key Laboratory of Trustworthy Distributed Computing and Service Beijing China Beijing University of Posts and Telecommunications State Key Laboratory of Networking and Switching Technology Beijing China

ISBN: (纸本)9798350357738

Since the Turing test, creating believable open-domain dialogues has been a basic problem in the study of artificial intelligence. Achieving success with dialogue models can greatly improve natural human-computer interactions and open up new possibilities for applications such as chatbots for therapy. Incorporating emotional information into dialogue systems and giving them personas can enhance user satisfaction by fostering more natural communication and human-like conversations. Both of these study directions are comparatively well-established, with important accomplishments in them. On the other hand, various roles in real-life discussion scenarios portray emotions in different ways. In order to create more fulfilling and human-like discussions, we investigate in this study the integration of personas and emotions in dialogue creation systems. Through the combination of explicit and implicit persons, we tackle the problem of individualized and emotional conversation. While implicit personas are gleaned from linguistic style, colloquial idioms, and personality attributes, explicit personas are derived from user profiles. Explicit personas and emotional labels are incorporated into the dialogue agent, and implicit personas are captured through the use of latent variables in a pre-trained Transformer model. Our suggested method enhances the authenticity of discussions and user experience by producing responses that are consistent with personas and emotions, hence improving the quality of communication. © 2023 IEEE.

关键词： Human computer interaction

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Joint cache placement and beamforming design for scalable videos in C-RAN 15

Joint cache placement and beamforming design for scalable vi...

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15th International Symposium on Wireless Communication Systems, ISWCS 2018

作者： Ma, Mingfeng Lv, Tiejun Zhang, Xuewei Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing100876 China

ISBN: (纸本)9781538650059

This paper investigates the joint optimization of layered caching and beamforming design for scalable videos delivered by Dynamic Adaptive Streaming over HTTP in the multicell cloud radio access network. To transmit differential scalable videos, each video is divided into a base layer and a set of enhancement layers based on scalable video coding. Taking the layered property of scalable videos into account, we propose a layered caching scheme, i.e., multiple layers of different scalable videos are cached in the baseband unit pool and the cache-enabled cluster respectively, which alleviates the burden of backhaul links effectively. Since the quality of videos received by each user depends on the available bandwidth, the appropriate scalable videos are provided for users based on the transmission rates. To provide superior video quality for users, we aim to maximize the sum rate for users accessing the remote radio heads and regard the backhaul consumption as a quality of service constraint explicitly. Then, the weighted sum rate maximization problem is formulated, which can be converted into a quadratically constrained quadratic programming problem through the l0-norm approximation technique and the weighted minimum mean square error approach. Finally, simulation results demonstrate the superiority of the proposed scheme. © 2018 IEEE.

关键词： Scalable video coding

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SWIPT-Aided Secure Beamforming Design for Downlink Cooperative NOMA Systems 6

SWIPT-Aided Secure Beamforming Design for Downlink Cooperati...

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6th Global Wireless Summit, GWS 2018

作者： Hao, Yunqin Lv, Tiejun Beijing University of Posts and Telecommunications Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education School of Information and Communication Engineering Beijing100876 China

ISBN: (纸本)9781538642887

In this paper, we consider a downlink non-orthogonal multiple access system, in which base station emits secret messages to two legitimate users in the presence of multiple eavesdroppers, and all the eavesdroppers collude to form joint receive beamforming, in an attempt to enhance their interceptions. In light of this, a cooperative simultaneous wireless information and power transfer non-orthogonal multiple access secure transmission protocol is proposed, where the legitimate user with a stronger channel condition acts as an energy harvesting relay to help that with a weaker channel condition. Following this, a secrecy sum rate maximization problem is formulated, under the constraints of transmit power and quality of service requirements. By taking both the single-antenna and multiple-antenna scenarios into account, two different optimization schemes, i.e., the power control scheme, and the null-space beamforming design scheme, are presented to maximize the secrecy sum rate. Numerical results verify the superiority of our proposed schemes over the benchmarks. © 2018 IEEE.

关键词： Beamforming

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A Framework Analysis of the 6G Vertical Ecosystem Based on Stakeholder Theory 24

A Framework Analysis of the 6G Vertical Ecosystem Based on S...

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Proceedings of the 2024 10th International Conference on Communication and Information Processing

作者： Fengshuai Du Jiao Zhang Xinyue Yan Tianjian Yang Haiyan Yan Jiayin Qi Enzo Bivona Suya Xiao Xing Shi Department of Political Sciences and International Relations (DEMS) University of Palermo Palermo Sicily Italy and Huangpu Research School of Guangzhou University Guangzhou University Guanghzou Guangdong China School of Economics and Management Beijing University of Posts and Telecommunications Beijing China Fudan University Shanghai China Beijing University of Posts and Telecommunications Beijing China Shanghai University of International Business and Economics Shanghai China Cyberspace Institute of Advanced Technology Guangzhou Guangdong China and Key Laboratory of Trustworthy Distributed Computing and Service Beijing University of Posts and Telecommunications Beijing China Department of Political Sciences and International Relations (DEMS) University of Palermo Palermo Sicily Italy International Business School Shandong Jiaotong University Weihai Shandong China

ISBN: (纸本)9798400717444

This research provides a framework analysis of the 6G vertical ecosystem's development through stakeholder theory, identifying three phases: introduction, development, and maturity, and discussing the evolution from a simple value chain to a complex ecosystem driven by industry demands and technology advancements, focusing on the challenges and drivers including technological innovation, economic viability, regulatory needs, environmental sustainability, security, and societal impact.

关键词： 6G

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TKCA:a timely keystroke-based continuous user authentication with short keystroke sequence in uncontrolled settings

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Cybersecurity 2021年第1期4卷 177-192页

作者： Lulu Yang Chen Li Ruibang You Bibo Tu Linghui Li Institute of Information Engineering Chinese Academy of Sciences100093 BeijingChina School of Cyber Security University of Chinese Academy of Sciences100049 BeijingChina Key Laboratory of Trustworthy Distributed Computing and Service Ministry of EducationBeijing University of Posts and Telecommunications100876 BeijingChina

keystroke-based behavioral biometrics have been proven effective for continuous user *** state-of-the-art algorithms have achieved outstanding results in long text or short text collected by doing some *** remains a considerable challenge to authenticate users continuously and accurately with short keystroke inputs collected in uncontrolled *** this work,we propose a Timely keystroke-based method for Continuous user Authentication,named *** integrates the key name and two kinds of timing features through an embedding *** it captures the relationship between context keystrokes by the Bidirectional Long Short-Term Memory(Bi-LSTM)*** conduct a series of experiments to validate it on a public dataset-the Clarkson II dataset collected in a completely uncontrolled and natural *** results show that the proposed TKCA achieves state-of-the-art performance with 8.28%of EER when using only 30 keystrokes and 2.78%of EER when using 190 keystrokes.

关键词： keystroke dynamics Continuous user authentication Embedding LSTM Bi-LSTM

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VMScan: an out-of-VM malware scanner

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The Journal of China Universities of Posts and Telecommunications 2020年第4期27卷 59-68页

作者： Lin Jie Liu Chuanyi Fang Binxing School of Computer Science and Technology Harbin Institute of TechnologyShenzhenShenzhen 518055China Key Laboratory of Trustworthy Distributed Computing and Service Beijing University of Posts and TelecommunicationsBeijing 100876China Department of Information and Electronic Engineering Chinese Academy of EngineeringBeijing 100088China

The harm caused by malware in cloud computing environment is more and more serious. Traditional anti-virus software is in danger of being attacked when it is deployed in virtual machine on a large scale, and it tends not to be accepted by tenants in terms of performance. In this paper, a method of scanning malicious programs outside the virtual machine is proposed, and the prototype is implemented. This method transforms the memory of the virtual machine to the host machine so that the latter can access it. The user space and kernel space of virtual machine memory are analyzed via semantics, and suspicious processes are scanned by signature database. Experimental results show that malicious programs can be effectively scanned outside the virtual machine, and the performance impact on the virtual machine is low, meeting the needs of tenants.

关键词： security virtualization cloud malware virus detection signature scanning

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LRChain:data protection and sharing method of learning archives based on consortium blockchain

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The Journal of China Universities of Posts and Telecommunications 2024年第4期31卷 28-42页

作者： Lan Lina Gao Yuhan Shi Ruisheng Wu Fenfen School of Humanities Beijing University of Posts and TelecommunicationsBeijing 100876China School of Cyberspace Security Beijing University of Posts and TelecommunicationsBeijing 100876China Key Laboratory of Trustworthy Distributed Computing and Service Beijing University of Posts and TelecommunicationsMinistry of EducationBeijing 100876China

Learning archives management in traditional systems faces challenges such as inadequate security,weak tamper resistance,and limited sharing *** address these issues,this paper proposes LRChain,a method based on consortium blockchain,for lifelong learning archives data protection and *** employs a combination of on-chain and off-chain cooperative storage using a consortium chain and inter planetary file system(IPFS)to enhance data security and *** also enables fine-grained verification of learning archives through selective disclosure principles,ensuring privacy protection of sensitive ***,an attributebased encryption(ABE)algorithm is utilized to establish authorized access control for learning archives,facilitating safe and trusted *** evaluations and security analyses demonstrate that this method exhibits decentralization,strong security,tamper resistance,and performs well,effectively meeting the requirements for secure sharing of learning archive data.

关键词： learning archives consortium blockchain collaborative storage secure sharing

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Enhanced mutual authentication model of IoT

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Journal of China Universities of Posts and Telecommunications 2013年第SUPPL -2期20卷 69-74页

作者： Yang, Jin-Cui Pang, Hao Zhang, Xin School of Software Engineering Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Trustworthy Distributed Computing and Service Beijing University of Posts and Telecommunications Beijing 100876 China Bank of Communications Beijing Branch Beijing 100032 China

The authentication mechanism of the Internet of things (IoT) control system is an important research field. This paper aims to give an appropriate authentication mechanism of IoT control system. It analyzes the pros and cons of some existing authentication mechanisms, proposes an enhanced bi-direction authentication mechanism for IoT control system, discusess the proposed mechanism in detail, including the improvements measures, the authentication process and the authentication model. Finally, this paper presents the security analysis of the enhanced authentication model. Analysis results indicate that the model is a relatively feasible security authentication model for the IoT control system. © 2013 The Journal of China Universities of Posts and Telecommunications.

关键词： Internet of things

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