Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713088
Yongjun Ma, G. Bai
The monitoring and management of the high density crowd in large scale public place is an important factor of city disaster reduction and mitigation. Automatic short term prediction of crowd density is a key problem. This paper introduces a prediction algorithm using v-support vector regression (v-SVR), which can control the accuracy of fitness and prediction error by adjusting the parameter v. An on-line training algorithm is discussed in detail to reduce the training complexity of v-SVR. As an important input feature, high crowd density estimation is also discussed. The experimental results show that v-SVR has low error rate and better generalization with appropriate v.
{"title":"Short term prediction of crowd density using v-SVR","authors":"Yongjun Ma, G. Bai","doi":"10.1109/YCICT.2010.5713088","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713088","url":null,"abstract":"The monitoring and management of the high density crowd in large scale public place is an important factor of city disaster reduction and mitigation. Automatic short term prediction of crowd density is a key problem. This paper introduces a prediction algorithm using v-support vector regression (v-SVR), which can control the accuracy of fitness and prediction error by adjusting the parameter v. An on-line training algorithm is discussed in detail to reduce the training complexity of v-SVR. As an important input feature, high crowd density estimation is also discussed. The experimental results show that v-SVR has low error rate and better generalization with appropriate v.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121892756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713117
Chen-Guang He, S. Bao
AKA protocol is widely used for mutual authentication process of 3G communication system. The generation and the strength of cipher key during this process are the key problems about security. Some mathematic tools could be used to improve this performance of these features like Lorenz equations, which are a class of three-dimensional ordinary differential equations similar to the iterative equation with particular initial values and parameters in some cases. In fact, the value of sequence generated by Lorenz equation is of chaos characteristic. Appropriate pretreatment and quantification way can be adopted to transform them into two value chaos charactyeristic. Followed by using bit shift encryption method, it can provide more flexible and controllable of the encryption key to enhance the security of 3G air interface. This kind of encryption method achieved better results in terms of the key space and efficiency compared with standard encryption approach and one-dimensional Logistic chaotic encryption methods.
{"title":"An encryption algorithm based on chaotic system for 3G security authentication","authors":"Chen-Guang He, S. Bao","doi":"10.1109/YCICT.2010.5713117","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713117","url":null,"abstract":"AKA protocol is widely used for mutual authentication process of 3G communication system. The generation and the strength of cipher key during this process are the key problems about security. Some mathematic tools could be used to improve this performance of these features like Lorenz equations, which are a class of three-dimensional ordinary differential equations similar to the iterative equation with particular initial values and parameters in some cases. In fact, the value of sequence generated by Lorenz equation is of chaos characteristic. Appropriate pretreatment and quantification way can be adopted to transform them into two value chaos charactyeristic. Followed by using bit shift encryption method, it can provide more flexible and controllable of the encryption key to enhance the security of 3G air interface. This kind of encryption method achieved better results in terms of the key space and efficiency compared with standard encryption approach and one-dimensional Logistic chaotic encryption methods.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121242036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713048
Sui Tianyu, Y. Zhaokai, Li Yu, Sun Gui-qing, Huang Haining, Z. Chunhua
Underwater acoustic communication is one of the key technologies in various important research fields, such as ocean geography, offshore oil industry and defense. However, conventional system design can not achieve desirable results, since the underwater channel suffers a lot from multipath propagation and Doppler Effect. In this paper, we aim to introduce a type of coherent underwater acoustic communication system, which combine the joint synchronization and equalization scheme and the joint iterative equalization and decoding technique to combat the severe underwater environment mentioned above. The platform belongs to the physical layer and can take various high layer applications. The proposed system is tested in computer simulated scenarios and experimental data, both of which demonstrate good performance.
{"title":"A coherent underwater acoustic communication system based on joint iterative equalization and decoding algorithm","authors":"Sui Tianyu, Y. Zhaokai, Li Yu, Sun Gui-qing, Huang Haining, Z. Chunhua","doi":"10.1109/YCICT.2010.5713048","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713048","url":null,"abstract":"Underwater acoustic communication is one of the key technologies in various important research fields, such as ocean geography, offshore oil industry and defense. However, conventional system design can not achieve desirable results, since the underwater channel suffers a lot from multipath propagation and Doppler Effect. In this paper, we aim to introduce a type of coherent underwater acoustic communication system, which combine the joint synchronization and equalization scheme and the joint iterative equalization and decoding technique to combat the severe underwater environment mentioned above. The platform belongs to the physical layer and can take various high layer applications. The proposed system is tested in computer simulated scenarios and experimental data, both of which demonstrate good performance.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117285497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713060
Wei Liu, D. Huang, Yan Zhang
A fuzzy comprehensive evaluation method of user experience is proposed to the problem on user experience quality which is difficult to accurately evaluate on the E-commerce web using. Firstly, being accordance with usability testing theory and the analysis of the user experience elements on E-commerce web using process, a evaluation index architecture is structured with views including human-computer interactive' , users' and experts' view. Then Analytic hierarchy process is used for weighting evaluated factors and the evaluation result is fuzzed. Finally an example is give to indicate that the evaluated model is effective to evaluate the quality of user experience on the E-commerce web using.
{"title":"Research on fuzzy comprehensive evaluation of user experience","authors":"Wei Liu, D. Huang, Yan Zhang","doi":"10.1109/YCICT.2010.5713060","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713060","url":null,"abstract":"A fuzzy comprehensive evaluation method of user experience is proposed to the problem on user experience quality which is difficult to accurately evaluate on the E-commerce web using. Firstly, being accordance with usability testing theory and the analysis of the user experience elements on E-commerce web using process, a evaluation index architecture is structured with views including human-computer interactive' , users' and experts' view. Then Analytic hierarchy process is used for weighting evaluated factors and the evaluation result is fuzzed. Finally an example is give to indicate that the evaluated model is effective to evaluate the quality of user experience on the E-commerce web using.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129194780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713107
De-Qiang Fan, Su Zhang, B. Li
Emotional states are part of the information that is conveyed in many forms of network reviews. This paper presents a new sentiment polarity recognition model based on linguistic structure of emotion states-fixed sentiment terms model. The proposed method uses three types of specific collocation pattern to construct the recognition algorithm based on fixed sentiment terms. These feature term sets are gradually updated by relevance feedbacks from the users which based on incremental tf-idf model. Comparison is done between the traditional method and fixed sentiment terms model. All tests showed the proposed method gets a higher efficiency and accuracy rate of the emotion classifier.
{"title":"A new sentiment polarity recognition model based on linguistic structure of network reviews - Fixed sentiment terms model","authors":"De-Qiang Fan, Su Zhang, B. Li","doi":"10.1109/YCICT.2010.5713107","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713107","url":null,"abstract":"Emotional states are part of the information that is conveyed in many forms of network reviews. This paper presents a new sentiment polarity recognition model based on linguistic structure of emotion states-fixed sentiment terms model. The proposed method uses three types of specific collocation pattern to construct the recognition algorithm based on fixed sentiment terms. These feature term sets are gradually updated by relevance feedbacks from the users which based on incremental tf-idf model. Comparison is done between the traditional method and fixed sentiment terms model. All tests showed the proposed method gets a higher efficiency and accuracy rate of the emotion classifier.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129904564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713058
Daxin Tian, Yunpeng Wang, K. Ma
Beaconing is one of the core communication method for Vehicle Ad Hoc Networks (VANETs). In this paper we traced the beaconing behavior in dense VANETs by NS2 with free space, two-ray ground, and shadowing radio propagation models. Among the 100 line up vehicles with 10m inter-vehicle distance, one beacon can be successfully received by all vehicles in 55ms, the packet loss rate is about 40%. We also observed that there is fluctuation behavior in packet receive.
{"title":"Performance evaluation of beaconing in dense VANETs","authors":"Daxin Tian, Yunpeng Wang, K. Ma","doi":"10.1109/YCICT.2010.5713058","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713058","url":null,"abstract":"Beaconing is one of the core communication method for Vehicle Ad Hoc Networks (VANETs). In this paper we traced the beaconing behavior in dense VANETs by NS2 with free space, two-ray ground, and shadowing radio propagation models. Among the 100 line up vehicles with 10m inter-vehicle distance, one beacon can be successfully received by all vehicles in 55ms, the packet loss rate is about 40%. We also observed that there is fluctuation behavior in packet receive.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713095
Xue-feng Luo, Li Han
A theoretical model is presented for multilayered surface plasmon resonance sensors composed of isotropic materials. In the framework of optical transmission theory in multilayers, by solving Helmholtz equations, the expression of electromagnetic field distribution inside multilayered structures is established. This model is applied in the simulation of surface plasmon resonance characteristics of single Au layer, bilayer Co/Au and trilayer Au/Co/Au respectively. The calculated reflectivity curves are in excellent agreement with the experimental results. The simulated field distribution inside layered structures give an explicit explanation to the variations of reflectivity as a function of incident angle. Thus, the presented model can be used as an analytical tool in the format of SPR sensors.
{"title":"A universal model of surface plasmon resonance characteristics for isotropic multilayer films","authors":"Xue-feng Luo, Li Han","doi":"10.1109/YCICT.2010.5713095","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713095","url":null,"abstract":"A theoretical model is presented for multilayered surface plasmon resonance sensors composed of isotropic materials. In the framework of optical transmission theory in multilayers, by solving Helmholtz equations, the expression of electromagnetic field distribution inside multilayered structures is established. This model is applied in the simulation of surface plasmon resonance characteristics of single Au layer, bilayer Co/Au and trilayer Au/Co/Au respectively. The calculated reflectivity curves are in excellent agreement with the experimental results. The simulated field distribution inside layered structures give an explicit explanation to the variations of reflectivity as a function of incident angle. Thus, the presented model can be used as an analytical tool in the format of SPR sensors.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133365771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713052
Xinda Ke, Funian Li, Tingting Hu, Liang Wang
In this paper we present two strategy to maximize user's throughput in Cooperative MU-OFDM network while considering fairness of users. Our strategy is proposed to improve throughput and fairness of users only with limited feedback. With perfect instantaneous channel state information(CSI) at receiver, the resource allocating strategy not only decided in base station, but also decided in users of the cell. Further, we decompose the joint resource allocation problem into three subproblems. First, a proportional user choosing strategy is introduced. Second, an adaptive relay choosing strategy is proposed in each user respectively. Finally, a suboptimal power allocation is given after subcarrier allocation. Based on the three step, we proposed two allocating strategy. The simulation results demonstrate that our strategy can greatly improves the throughput while ensuring users fairness only with limited feedback.
{"title":"Resource allocation with opportunistic feedback in Cooperative MU-OFDM network","authors":"Xinda Ke, Funian Li, Tingting Hu, Liang Wang","doi":"10.1109/YCICT.2010.5713052","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713052","url":null,"abstract":"In this paper we present two strategy to maximize user's throughput in Cooperative MU-OFDM network while considering fairness of users. Our strategy is proposed to improve throughput and fairness of users only with limited feedback. With perfect instantaneous channel state information(CSI) at receiver, the resource allocating strategy not only decided in base station, but also decided in users of the cell. Further, we decompose the joint resource allocation problem into three subproblems. First, a proportional user choosing strategy is introduced. Second, an adaptive relay choosing strategy is proposed in each user respectively. Finally, a suboptimal power allocation is given after subcarrier allocation. Based on the three step, we proposed two allocating strategy. The simulation results demonstrate that our strategy can greatly improves the throughput while ensuring users fairness only with limited feedback.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132138841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713086
Bo Wang, Xianfeng Liu
Fund reviews on the Web can help people to make investment decisions and their size is relatively small comparing with other products, which lowers PMI algorithm performance. Replacing words by morphemes can improve system capability in Chinese language environment, but defining the SO (sentiment orientation) of morphemes is generally a kind of heavy handwork. We propose a methodology to do this job automatically, whose basic idea is to introduce some outside language and statistical resources to assist polarity calculation. Experiments show that the algorithm is effective and the system get better performance.
{"title":"Extracting morphemes to improve sentiment analysis for Chinese fund reviews","authors":"Bo Wang, Xianfeng Liu","doi":"10.1109/YCICT.2010.5713086","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713086","url":null,"abstract":"Fund reviews on the Web can help people to make investment decisions and their size is relatively small comparing with other products, which lowers PMI algorithm performance. Replacing words by morphemes can improve system capability in Chinese language environment, but defining the SO (sentiment orientation) of morphemes is generally a kind of heavy handwork. We propose a methodology to do this job automatically, whose basic idea is to introduce some outside language and statistical resources to assist polarity calculation. Experiments show that the algorithm is effective and the system get better performance.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131877052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1109/YCICT.2010.5713078
Yi-Hong Tan, Bin Li, Xue-yong Li, Ya-ping Lin
In super-peer semantic network, when a new peer joins the network, the peer will use the semantic feature of local share documents to select super-peers. In traditionally networks, client-peers use the semantic feature of clusters in peers to select the super-peers to connect. But the clusters are fixed, general, single-level, and not effective to represent the features of all documents. And, while selecting super-peers to connect, the client-peer cannot select some relative clusters in different level accord to the semantic categories of super-peers semantic group. In this paper, a Super-Peer semantic Network based on Hierarchical Clustering Tree (HCTSPN) is presented. First, an improved hierarchical clustering algorithm for organizing the share documents in a client-peer is proposed. Secondly, the method of constructing a super-peer semantic network based on hierarchical clustering tree and search mechanism are proposed. Finally, the experiments are implemented, and the results show that search efficiency and retrieval quality are improved in the network.
{"title":"Designing a Super-Peer semantic Network based on Hierarchical Clusters","authors":"Yi-Hong Tan, Bin Li, Xue-yong Li, Ya-ping Lin","doi":"10.1109/YCICT.2010.5713078","DOIUrl":"https://doi.org/10.1109/YCICT.2010.5713078","url":null,"abstract":"In super-peer semantic network, when a new peer joins the network, the peer will use the semantic feature of local share documents to select super-peers. In traditionally networks, client-peers use the semantic feature of clusters in peers to select the super-peers to connect. But the clusters are fixed, general, single-level, and not effective to represent the features of all documents. And, while selecting super-peers to connect, the client-peer cannot select some relative clusters in different level accord to the semantic categories of super-peers semantic group. In this paper, a Super-Peer semantic Network based on Hierarchical Clustering Tree (HCTSPN) is presented. First, an improved hierarchical clustering algorithm for organizing the share documents in a client-peer is proposed. Secondly, the method of constructing a super-peer semantic network based on hierarchical clustering tree and search mechanism are proposed. Finally, the experiments are implemented, and the results show that search efficiency and retrieval quality are improved in the network.","PeriodicalId":179847,"journal":{"name":"2010 IEEE Youth Conference on Information, Computing and Telecommunications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132068258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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