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Multi-User Semantic Fusion for Semantic Communications over Degraded Broadcast Channels
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作者 Wu Tong Chen Zhiyong +2 位作者 Tao Meixia Xia Bin Zhang Wenjun 《China Communications》 SCIE CSCD 2024年第10期86-100,共15页
Degraded broadcast channels(DBC) are a typical multiuser communication scenario, Semantic communications over DBC still lack in-depth research. In this paper, we design a semantic communications approach based on mult... Degraded broadcast channels(DBC) are a typical multiuser communication scenario, Semantic communications over DBC still lack in-depth research. In this paper, we design a semantic communications approach based on multi-user semantic fusion for wireless image transmission over DBC. The transmitter extracts semantic features for two users separately and then effectively fuses them for broadcasting by leveraging semantic similarity. Unlike traditional allocation of time, power, or bandwidth, the semantic fusion scheme can dynamically control the weight of the semantic features of the two users to balance their performance. Considering the different channel state information(CSI) of both users over DBC,a DBC-Aware method is developed that embeds the CSI of both users into the joint source-channel coding encoder and fusion module to adapt to the channel.Experimental results show that the proposed system outperforms the traditional broadcasting schemes. 展开更多
关键词 channel adaptability degraded broadcasting channels semantic communications semantic fusion
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Variance-Constrained Filtering Fusion for Nonlinear Cyber-Physical Systems With the Denial-of-Service Attacks and Stochastic Communication Protocol 被引量:4
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作者 Hang Geng Zidong Wang +2 位作者 Yun Chen Xiaojian Yi Yuhua Cheng 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2022年第6期978-989,共12页
In this paper,a new filtering fusion problem is studied for nonlinear cyber-physical systems under errorvariance constraints and denial-of-service attacks.To prevent data collision and reduce communication cost,the st... In this paper,a new filtering fusion problem is studied for nonlinear cyber-physical systems under errorvariance constraints and denial-of-service attacks.To prevent data collision and reduce communication cost,the stochastic communication protocol is adopted in the sensor-to-filter channels to regulate the transmission order of sensors.Each sensor is allowed to enter the network according to the transmission priority decided by a set of independent and identicallydistributed random variables.From the defenders’view,the occurrence of the denial-of-service attack is governed by the randomly Bernoulli-distributed sequence.At the local filtering stage,a set of variance-constrained local filters are designed where the upper bounds(on the filtering error covariances)are first acquired and later minimized by appropriately designing filter parameters.At the fusion stage,all local estimates and error covariances are combined to develop a variance-constrained fusion estimator under the federated fusion rule.Furthermore,the performance of the fusion estimator is examined by studying the boundedness of the fused error covariance.A simulation example is finally presented to demonstrate the effectiveness of the proposed fusion estimator. 展开更多
关键词 Cyber-physical system(CPS) denial-of-service attack stochastic communication protocol(SCP) variance-constrained filtering fusion
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Study on Countermeasures of Language Exchange and Cultural Communication along “the Belt and Road” 被引量:1
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作者 秦子瑜 《海外英语》 2016年第18期235-236,共2页
This paper introduces the language and cultural status along"the Belt and Road", points out the importance of language and cultural communication to realize the"the Belt and Road"initiative, and pu... This paper introduces the language and cultural status along"the Belt and Road", points out the importance of language and cultural communication to realize the"the Belt and Road"initiative, and put forward that our country should use various channels to spread the cultural connotation of"the Belt and Road"initiative, spread, study and absorb excellent culture of countries along"the Belt and Road"in spirits of open and inclusive, and enhance public support by cultural communication to promote economic cooperation, cultural prosperity and innovation of countries along the"the Belt and Road ". 展开更多
关键词 the Belt and Road Languages exchange Culture communication
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Scheme for Secure Communication via Information Hiding Based on Key Exchange and Decomposition Protocols
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作者 Boris S. Verkhovsky 《International Journal of Communications, Network and System Sciences》 2011年第2期77-81,共5页
This paper considers a decomposition framework as a mechanism for information hiding for secure communication via open network channels. Two varieties of this framework are provided: one is based on Gaussian arithmeti... This paper considers a decomposition framework as a mechanism for information hiding for secure communication via open network channels. Two varieties of this framework are provided: one is based on Gaussian arithmetic with complex modulus and another on an elliptic curve modular equation. The proposed algorithm is illustrated in a numerical example. 展开更多
关键词 Complex MODULUS Cryptanalytic Protection DECOMPOSITION GAUSSIAN MODULAR ARITHMETIC Information Hiding Key exchange MODULAR ELLIPTIC Curve Secure communication
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Communication and Exchange Boost Understanding and Friendship:CAFIU Delegation Visited Russia and Romania
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作者 Liu Dan Ma Jiatai 《International Understanding》 2016年第3期37-40,共4页
At the invitation of Alexander Gorchakov Public Diplomacy Foundation of Russia(the Foundation)and Institute of Romanian Participatory Democracy,a four-member delegation sent by the Chinese Association for Internationa... At the invitation of Alexander Gorchakov Public Diplomacy Foundation of Russia(the Foundation)and Institute of Romanian Participatory Democracy,a four-member delegation sent by the Chinese Association for International Understanding(CAFIU),headed by Deputy Secretary-General Zheng Yao,visited Russia and Romania during June 28 and July 5. 展开更多
关键词 communication and exchange Boost Understanding and Friendship
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Using Social Media to Promote Intercultural Communication Between Chinese and American University Students 被引量:1
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作者 Yingli Zhou Jin'ai Sun 《Chinese Journal of Applied Linguistics》 2020年第2期169-187,249,250,共21页
This paper reports a five-year computer-mediated intercultural exchange project between Chinese and American university students that explores the use of various social media tools with WeChat application as the main ... This paper reports a five-year computer-mediated intercultural exchange project between Chinese and American university students that explores the use of various social media tools with WeChat application as the main medium in collaborative intercultural assignments. The study combines quantitative and qualitative approaches by using questionnaires and action research, to investigate how Chinese EFL and American CFL learners increase their intercultural communication competence by assessing their knowledge, awareness, attitudes, and skills of discovery and awareness. The findings reveal their changes and progress in the following variables: knowledge about the variety and subtlety of both the home and target cultures, a different worldview, and cultural study methods;awareness of the importance of differences and similarities between the home and target cultures, their negative reactions to these differences(e.g., fear, ridicule, disgust, feeling of superiority, etc.) and therefore, critical evaluation of the target and home cultures;attitudes from excitement or blind admiration of the target culture to confusion, anxiety or frustration about the cultural differences, later to toleration and appreciation of cultural differences, adaptation to the target culture, and eventually to openness and readiness to suspend disbelief about other cultures and belief about one’s own;skills to contrast the target culture with their own, to demonstrate a capacity to interact appropriately in a variety of different social situations in the target culture and resolve cross-cultural conflicts and misunderstandings. This research will serve as a valuable reference for computer-mediated intercultural communication teaching and open up new possibilities to extend classroom teaching by bridging the gap between second-hand knowledge and hands-on experience. 展开更多
关键词 social media intercultural communication competence model intercultural exchange project WeChat application
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Conceptual Evolution and Paradigm Reconstruction:An Integrated Framework for International Communication
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作者 Hu Zhengrong Jing Jiayi 《Social Sciences in China》 2024年第3期115-129,共15页
The tracing of historical origins and disciplinary trajectories enables us to reveal that international communication,as a specific manifestation of global information flow and media evolution,is primarily influenced ... The tracing of historical origins and disciplinary trajectories enables us to reveal that international communication,as a specific manifestation of global information flow and media evolution,is primarily influenced by the interplay of three societal factors:the roots of political conflicts,the catalytic role of economic and technological developments,and the reshaping of values into distinct blocs.These factors intertwine with the awareness of external exploration across different historical periods.Traditional knowledge production in international communication has evolved along two main lines:political economy and cultural studies.These paths have given rise to three major paradigmspropaganda,global communication,and intercultural communicationeach stemming from differing core units of analysis.Together,they have constructed a multifaceted interpretive framework for understanding self-identity and the relationship between self and the external world in the information age since the beginning of the 20th century.This paper argues that on the new journey in the new era,efforts should be made to weaken the attributes of hierarchical control and power conflict derived from the practices of Western industrial societies and the Cold War.In the context of an era marked by the fusion ofnew subjects,new networks,new media,and new values,"there is a need to return to the original purpose of communication:the sharing of information and the collective responsibility it entails.This will enable the construction of a new paradigm driven by Chinese modernization for the exchange and mutual learning of civilizations.Such a paradigm aims to unify humanity around shared values,foster the building of a human community with a shared future,and create new forms ofhuman advancement. 展开更多
关键词 international communication global communication intercultural communication exchange and mutual learning of civilizations human community with a shared future
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Investor Relations (IR) in Business Communication on the Example of Poland
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作者 Ryszard Kamifiski 《Journal of Modern Accounting and Auditing》 2013年第11期1483-1496,共14页
This paper focuses on investor relations (IR) as an element of companies' communication with the external environment. It shows the place and role of IR in communication with the general market, and the stock excha... This paper focuses on investor relations (IR) as an element of companies' communication with the external environment. It shows the place and role of IR in communication with the general market, and the stock exchange market in particular. The study is illustrated with an example of IR in Poland, a relatively new European Union (EU) member state and an emerging market. As can be seen, IR goes beyond the traditionally understood maintenance of communication with the capital market. It is also shown that the main role of IR ought to be the reduction of investment risk and enhancement of the companies' value, which is of particular significance in light of the current globalization of capital markets. It has been found that Polish companies, especially those listed on the Warsaw Securities Exchange (WSE), commonly rely on IR as a means of communication with the environment. And yet, as the results of the analysis show, the quality of that communication is still far from satisfactory, despite efforts undertaken by various external entities to encourage more focus on the development of IR, or understanding of the company's relevant staff of its important role. 展开更多
关键词 investor relations (IR) public relations (PR) business communication financial reporting STAKEHOLDERS capital market securities exchange/stock exchange information technologies
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Promoting Heart-to-heart Communication through Cultural Exchange
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作者 Wang Lin Xiao Lan 《International Understanding》 2012年第3期45-46,共2页
At the invitation of CAFIU, a 40-member Hiroshima Kagura troupe, headed by Mr. Sen Nakata, President of the special non-profit organization "Sekai" visited China from June 24 to 29, and staged a performance ... At the invitation of CAFIU, a 40-member Hiroshima Kagura troupe, headed by Mr. Sen Nakata, President of the special non-profit organization "Sekai" visited China from June 24 to 29, and staged a performance in Beijing andDalian respectively on June 25 and June 27, 展开更多
关键词 Promoting Heart-to-heart communication through Cultural exchange very
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Color, Culture and Communication
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作者 刘响慧 《海外英语》 2019年第8期230-232,共3页
The warm yellow symbolizes China,and cool blue the West.Based on the different geographical and psychological significances,there exists cultural disparity in behavioral patterns between these two color cultures,yet t... The warm yellow symbolizes China,and cool blue the West.Based on the different geographical and psychological significances,there exists cultural disparity in behavioral patterns between these two color cultures,yet their fusion can lead the world culture to a new stage—green culture,just as the mixing of yellow and blue in equal proportions produces peaceful and harmonious green.To the fatigued people,green culture is refreshment.Yellow Culture,Blue Culture and Green Culture will coexist in the world—these are the future cultures for the world. 展开更多
关键词 YELLOW CULTURE BLUE CULTURE Green CULTURE fusion communication
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Sonar Image Target Detection for Underwater Communication System Based on Deep Neural Network
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作者 Lilan Zou Bo Liang +2 位作者 Xu Cheng Shufa Li Cong Lin 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第12期2641-2659,共19页
Target signal acquisition and detection based on sonar images is a challenging task due to the complex underwater environment.In order to solve the problem that some semantic information in sonar images is lost and mo... Target signal acquisition and detection based on sonar images is a challenging task due to the complex underwater environment.In order to solve the problem that some semantic information in sonar images is lost and model detection performance is degraded due to the complex imaging environment,we proposed a more effective and robust target detection framework based on deep learning,which can make full use of the acoustic shadow information in the forward-looking sonar images to assist underwater target detection.Firstly,the weighted box fusion method is adopted to generate a fusion box by weighted fusion of prediction boxes with high confidence,so as to obtain accurate acoustic shadow boxes.Further,the acoustic shadow box is cut down to get the feature map containing the acoustic shadow information,and then the acoustic shadow feature map and the target information feature map are adaptively fused to make full use of the acoustic shadow feature information.In addition,we introduce a threshold processing module to improve the attention of the model to important feature information.Through the underwater sonar dataset provided by Pengcheng Laboratory,the proposed method improved the average accuracy by 3.14%at the IoU threshold of 0.7,which is better than the current traditional target detection model. 展开更多
关键词 Underwater communication intelligent sensor network target detection weighted frame fusion shadow information
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Hybrid Optimization Algorithm for Resource Allocation in LTE-Based D2D Communication
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作者 Amel Austine RSuji Pramila 《Computer Systems Science & Engineering》 SCIE EI 2023年第8期2263-2276,共14页
In a cellular network,direct Device-to-Device(D2D)communication enhances Quality of Service(QoS)in terms of coverage,throughput and amount of power consumed.Since theD2D pairs involve cellular resources for communicat... In a cellular network,direct Device-to-Device(D2D)communication enhances Quality of Service(QoS)in terms of coverage,throughput and amount of power consumed.Since theD2D pairs involve cellular resources for communication,the chances of interference are high.D2D communications demand minimum interference along with maximum throughput and sum rate which can be achieved by employing optimal resources and efficient power allocation procedures.In this research,a hybrid optimization model called Genetic Algorithm-Adaptive Bat Optimization(GA-ABO)algorithm is proposed for efficient resource allocation in a cellular network with D2D communication.Simulation analysis demonstrates that the proposed model involves reduced interference with maximum sum rate and throughput.The performance of the proposed model is compared with the existing Ant Colony Optimization-based resource exchange and GAME(ACO-GAME)theory models,Trader-assistedResource EXchange mechanism-RadioAccess Network(TREX-RAN)and De-centralized Radio Access Network(TREXDRAN),and greedy CYcle-Complete preferences(CYC)models.The proposed model offers a maximum sum rate of 83 kB/s,which is much better than the existing techniques. 展开更多
关键词 Device-to-Device communication Genetic Algorithm(GA) Adaptive Bat Optimization(ABO)algorithm resource exchange
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Opening Moves Involved in Text-based Computer-Mediated-Communication (CMC) by Chinese Adults
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作者 李莉华 《海外英语》 2011年第3X期257-258,260,共3页
The development of science and technology has made it not only possible but very convenient for people living in different parts of the world to communicate with each other, thus bringing forth a new form of communica... The development of science and technology has made it not only possible but very convenient for people living in different parts of the world to communicate with each other, thus bringing forth a new form of communication: computer-mediated communication (CMC). Text-based CMC is one of the most popular forms of CMC in which people send instant messages to others in different settings. Since this mode of interaction combines features of both the written and spoken language (Greenfield & Subrahmanyam, 2003), it's of great interest whether it follows the same sequential rule as the telephone conversation. However, compared to telephone conversations, computer-mediated communication has received much less attention, let alone text-based CMC. The existing body of literature mostly focuses on content analysis and linguistic features but neglects the sequential organization of such interaction (Paolillo, 1999; Greenfield and Subrahmanyam, 2003; Herring, 1999). In light of this, this paper examines the opening moves of instant message exchanges among Chinese adults in an attempt to find out the unique features characterizing the way they open an online chat. The framework that was chosen for data analysis was the sequential model proposed by Schegloff for American telephone openings. 展开更多
关键词 computer-mediated communication(CMC) Text-based CMC OPENING MOVES instant message exchanges on line chat sequential model
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Multi-path based secure communication in wireless mesh networks 被引量:1
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作者 Ding Xuyang Fan Mingyu Lu Xiaojun Zhu Dayong Wang Jiahao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2007年第4期818-824,共7页
Communication security is a critical aspect of QoS provisioning in wireless mesh network (WMN). Because of the inherent characteristics of WMN, conventional security mechanisms cannot be applied. In order to guarant... Communication security is a critical aspect of QoS provisioning in wireless mesh network (WMN). Because of the inherent characteristics of WMN, conventional security mechanisms cannot be applied. In order to guarantee the communication security, a novel communication security mechanism is proposed. The mechanism uses a communication encryption scheme to encrypt data packets and employs a risk avoidance scheme to avoid the malicious nodes during communications. Simulation results indicate that the mechanism is able to provide secure communication effectively and reduce the damage of attacks through multiple paths. 展开更多
关键词 wireless mesh network secure communication key exchange risk avoidance
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A Study of Sanxingdui Museum’s Building of International Communication Capacity
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作者 Zhou Lijuan 《Contemporary Social Sciences》 2022年第5期104-117,共14页
Museums’building of international communication capacity has become a hot topic in museology.Featuring unique resources of ancient Shu culture,Sanxingdui Museum is of great value in international communication.This p... Museums’building of international communication capacity has become a hot topic in museology.Featuring unique resources of ancient Shu culture,Sanxingdui Museum is of great value in international communication.This paper first reviews previous studies in this area,then analyzes the efforts made by present-day museums in China and abroad to raise their international profile,and later probes into the current status of Sanxingdui Museum’s building of international communication capacity.On this basis,this paper summarizes the countermeasures Sanxingdui Museum took and proposes suggestions regarding the building of its international communication capacity.Sanxingdui Museum should work harder to improve its overseas exhibitions,protect and study its cultural relics,advance the application for World Heritage status,and promote the Sanxingdui brand via multimedia. 展开更多
关键词 Sanxingdui Museum international communication cultural influence exchanges and mutual learning
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Growth of Chinese Medicine in Iran: Past, Present, and Prospects
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作者 Ehsan Doostmohammadi 《Chinese Medicine and Culture》 2024年第2期152-159,共8页
The international recognition of traditional Chinese medicine(TCM)has continuously increased,and that medical practice has gradually become incorporated into the medical systems of many nations.As an important country... The international recognition of traditional Chinese medicine(TCM)has continuously increased,and that medical practice has gradually become incorporated into the medical systems of many nations.As an important country in the Belt and Road Initiative,Iran has enormous potential for cooperation with China in medical and health care.High-level officials of the two countries attach great importance to cooperation in both areas.Despite the recent rapid development of TCM in Iran,that medical practice still faces many problems;examples here are the lack of practitioners of TCM as well as the paucity of comprehensive cooperation among herbal medicine factories,publishing houses,traditional medicine colleges,and universities in the two countries.The present study collected and analyzed materials related to the practice of TCM in Iran;it made a deep examination of the current situation,problems,and development prospects regarding TCM in Iran with the aim of providing ideas and references to promote the international development of that form of medicine.Following an analysis of the development trends of TCM in Iran in recent years,it became evident that the prospects for TCM in that country are extensive,and the practice has excellent potential. 展开更多
关键词 Chinese medicine exchange communication Iranian medicine Silk Road
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Carry Forward Traditional Culture;Promote International Communication 2017 Beijing International Kite Festival and Beijing-Tianjing-Hebei Kite Exchange successfully held
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《Voice of Friendship》 2017年第2期9-9,共1页
Under the theme'Release the Hope,Release the Dream',the 2017Beijing International Kite Festival and Beijing-Tianjin-Hebei Kite Exchange event was held at Beijing Expo Garden on April 20 and 21.The event attrac... Under the theme'Release the Hope,Release the Dream',the 2017Beijing International Kite Festival and Beijing-Tianjin-Hebei Kite Exchange event was held at Beijing Expo Garden on April 20 and 21.The event attracted master kite-makers,kite lovers and'intangible cultural heritage inheritors'from both China and abroad,with teams from 24 展开更多
关键词 Carry Forward Traditional Culture Promote International communication 2017 Beijing International Kite Festival and Beijing-Tianjing-Hebei Kite exchange successfully held
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DISTRIBUTED KALMAN FILTERING FUSION WITH PACKET LOSS OR INTERMITTENT COMMUNICATIONS FROM LOCAL ESTIMATORS TO FUSION CENTER 被引量:4
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作者 Yingting LUO Yunmin ZHU +1 位作者 Xiaojing SHEN Enbin SONG 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2012年第3期463-485,共23页
This paper considers the distributed Kalman filtering fusion with passive packet loss or initiative intermittent communications from local estimators to fusion center while the process noise does exist. When the local... This paper considers the distributed Kalman filtering fusion with passive packet loss or initiative intermittent communications from local estimators to fusion center while the process noise does exist. When the local estimates are not lost too much, the authors propose an optimal distributed fusion algorithm which is equivalent to the corresponding centralized Kalman filtering fusion with complete communications even if the process noise does exist. When this condition is not satisfied, based on the above global optimality result and sensor data compression, the authors propose a suboptimal distributed fusion algorithm. Numerical examples show that this suboptimal algorithm still works well and significantly better than the standard distributed Kalman filtering fusion subject to packet loss even if the process noise power is quite large. 展开更多
关键词 Distributed track fusion Kalman filtering intermittent communications packet loss.
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Analyses on Cultural Differences and Fusion Between Chinese and Americans in The Joy Luck Club
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作者 申剑丽 王海燕 《海外英语》 2015年第22期193-194,共2页
This paper chiefly discusses the cultural conflicts and reconciliations between characters in The Joy Luck Club from an inter-cultural perspective and comes to a conclusion that the fusion of different cultures is a t... This paper chiefly discusses the cultural conflicts and reconciliations between characters in The Joy Luck Club from an inter-cultural perspective and comes to a conclusion that the fusion of different cultures is a tendency in the world. 展开更多
关键词 inter-cultural communication CULTURAL conflicts CULTURAL fusion
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Cooperative control and communication of intelligent swarms:a survey
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作者 Kun HOU Yajun YANG +1 位作者 Xuerong YANG Jiazhe LAI 《Control Theory and Technology》 EI CSCD 2020年第2期114-134,共21页
Individuals exchange information,experience and strategy based on communication.Communication is the basis for individuals to form swarms and the bridge of swarms to realize cooperative control.In this paper,the multi... Individuals exchange information,experience and strategy based on communication.Communication is the basis for individuals to form swarms and the bridge of swarms to realize cooperative control.In this paper,the multirobot swarm and its cooperative control and communication methods are reviewed,and we summarize these methods from the task,control,and perception levels.Based on the research,the cooperative control and communication methods of intelligent swarms are divided into the following four categories:task assignment based methods(divided into market-based methods and alliance based methods),bio-inspired methods(divided into biochemical information inspired methods,vision based methods and self-organization based methods),distributed sensor fusion and reinforcement learning based methods,and we briefly define each method and introduce its basic ideas.Based on WOS database,we divide the development of each method into several stages according to the time distribution of the literature,and outline the main research content of each stage.Finally,we discuss the communication problems of intelligent swarms and the key issues,challenges and future work of each method. 展开更多
关键词 Intelligent swarm cooperative control communication task assignment bio-inspired methods distributed sensor fusion reinforcement learning
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