2011 International Conference on Information Science and Applications最新文献_第10页

Improving QoS of VoWLAN via Cross-Layer-Based Adaptive Approach 基于跨层自适应的VoWLAN QoS改进方法

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772426

S. A. A. Alshakhsi, H. Hasbullah

{"title":"Improving QoS of VoWLAN via Cross-Layer-Based Adaptive Approach","authors":"S. A. A. Alshakhsi, H. Hasbullah","doi":"10.1109/ICISA.2011.5772426","DOIUrl":"https://doi.org/10.1109/ICISA.2011.5772426","url":null,"abstract":"The next generation technology of Voice over Internet Protocol (VoIP) allows voice to be delivered over the Internet Protocol based networks. The integration of VoIP and Wireless Local Area Network (WLAN) has become popular. However, WLAN architecture was primarily designed to carry data and not for real-time applications, such as VoIP. Hence, there is a need to enhance the quality of VoIP transmission over the WLAN. On the other hand, IEEE 802.11 standard of WLAN provides support to link adaptive (LA) technique. LA leads to multi-rate transmissions, which causes degradation on voice quality. In this paper, cross-layer based adaptive approach is proposed to improve the quality of voice delivery over WLAN by minimizing the multi-rate effects on the quality of service (QoS) of VoIP. The approach in achieving this is by introducing a communication agent between MAC sub-layer and Application layer, by which congestion caused by the multi-rate could be reduced, if not eliminated. Moreover, Encoder adaptation is utilized at the Application layer as codec parameters are adapted according to the change of rate occurs at the MAC sub-layer. Simulation of different scenarios for different codec rates at different transmission rates has been implemented using OPNET. The result of QoS improvements is the evidence for the proposed cross-layer adaptation approach.","PeriodicalId":425210,"journal":{"name":"2011 International Conference on Information Science and Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127981547","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}

引用次数: 8

Real-Time Estimation of Trajectories and Heights of Pedestrians 行人轨迹和高度的实时估计

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772407

Sangwoo Park, Tae-eun Kim, Jongsoo Choi

引用次数: 2

Ontology-Driven Visualization System for Semantic Search 语义搜索本体驱动可视化系统

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772374

Inay Ha, Kyeong-Jin Oh, Geun-Sik Jo

{"title":"Ontology-Driven Visualization System for Semantic Search","authors":"Inay Ha, Kyeong-Jin Oh, Geun-Sik Jo","doi":"10.1109/ICISA.2011.5772374","DOIUrl":"https://doi.org/10.1109/ICISA.2011.5772374","url":null,"abstract":"Abstract-Technical manuals are very diverse, ranging from manuals on software to manuals on commodities, general instructions and technical manuals that deal with specific domains such as mechanical maintenance. Due to the vast amount of manual information finding the necessary information is quite difficult. In case of electronic maintenance manuals currently used by companies, mechanics should search for the related information to accomplish their tasks. And it is difficult to grasp relationships among contents in manuals. Search process is time-consuming and laborious for mechanics. Many researchers have adopted ontology to solve these problems and semantically represent contents of manuals. However if ontology becomes very large and complex, it is not easy to work with ontology. Visualization has been an effective way to grasp and manipulate ontology. In this research, we model new ontology to represent and retrieve contents of manuals and design the visualization system based on proposed ontology. To model ontology, we analyzed aircraft maintenance process, extracted concepts and defined relationships between concepts. After modeling, we created instances of each class using technical manuals. Our system visualizes related information so that mechanics can intuitively grasp the information. This allows workers to easily get information for given tasks and to reduce their time to search related information. Also, related information can be understood at a time through visualization.","PeriodicalId":425210,"journal":{"name":"2011 International Conference on Information Science and Applications","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128274423","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}

引用次数: 3

Design of Goal-Scenario Based Diagnosis Agent for Business Activity Monitoring 基于目标场景的业务活动监控诊断代理设计

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772317

Su-Jin Baek, Jong-Won Ko, Young-Jae Song

{"title":"Design of Goal-Scenario Based Diagnosis Agent for Business Activity Monitoring","authors":"Su-Jin Baek, Jong-Won Ko, Young-Jae Song","doi":"10.1109/ICISA.2011.5772317","DOIUrl":"https://doi.org/10.1109/ICISA.2011.5772317","url":null,"abstract":"The scope of the problems that could be solved by monitoring and the improvement of the recognition time is directly correlated to the performance of the management function of the business process. The Enhydra Shark from the existing WfMS shows the process records on the web client by the allocated activities during the designing process of the process log for the sake of the process monitoring. In WfMOpen, the documentation on the definition of the process is complication and insufficient, and there is no interacting part with other work flow services. Therefore, it rather provides services in accordance with the process result information that was allocated during the previous designing, rather than the monitoring of the changes by the influence of the external environment. In this paper we propose a system, which can interpret and monitoring to the result of each business acts follows in change of external environment. The proposed system applies a meta-heuristic genetic algorithms which to reduce additional load and to acquire the accuracy of system information. In addition, the similarity with the activities, dependency, and correlation are examined to find similar process model, and then the relevancy is extracted by using the event property information. Such information is used to figure out the problems occurring as a result of the changes and provide diagnostic information to support the adaptation decision making. With this, it is possible to apply the judgment of the situation info of the users as it occurs in a dynamic context.","PeriodicalId":425210,"journal":{"name":"2011 International Conference on Information Science and Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131078111","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}

引用次数: 2

Probabilistic Route Selection Algorithm to Trace DDoS Attack Traffic Source 基于概率选路算法的DDoS攻击流量源跟踪

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772420

Hong-bin Yim, Taewon Kim, Jaeil Jung

{"title":"Probabilistic Route Selection Algorithm to Trace DDoS Attack Traffic Source","authors":"Hong-bin Yim, Taewon Kim, Jaeil Jung","doi":"10.1109/ICISA.2011.5772420","DOIUrl":"https://doi.org/10.1109/ICISA.2011.5772420","url":null,"abstract":"DoS(Denial of Service) or DDoS(Distributed DoS) attack is a major threaten and the most difficult problem to solve among many attacks. Moreover, it is very difficult to find a real origin of attackers because DoS/DDoS attacker uses spoofed IP addresses. To solve this problem, we propose a probabilistic route selection algorithm to trace the attacker's real origin. This algorithm uses three types of packets such as an alert packet, an agent packet and a reply agent packet. The alert packet is in use to notify to a victim that DDoS attacks occur. The agent packet is in use to find the attacker's real origin and the reply agent packet is in use to notify to a victim that the agent packet is reached the edge router of the attacker. When source-end detector and victim-end detector detect attacks, the victim-end detector sends the alert packet to the victim. The victim received the alert packet generates the agent packet and sends it to a victim's edge router. The attacker's edge router received the agent packet generates the reply agent packet and send it to the victim. The agent packet and the reply agent packet is forwarded refer to probabilistic packet forwarding table by routers. The probabilistic route selection algorithm runs on the distributed routers and probabilistic packet forwarding table is stored and managed by routers. We simulate for the propose of validation this algorithm by using OPNET14.0 in terms of false positive and required number of packets to trace DDoS attack traffic source.","PeriodicalId":425210,"journal":{"name":"2011 International Conference on Information Science and Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125329701","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}

引用次数: 7

Condition Monitoring and Diagnosis for IEC 61850 Based Power Systems 基于IEC 61850的电力系统状态监测和诊断

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772341

Hyuk-Soo Jang, Dong-Chul Lee, Seok-Yeul Yun, Jong-Oh Kim, Chong-Il Ahn, Hyo-Sik Yang

引用次数: 4

An Uncertain Risk Index Model for Multi-Period Portfolio Selection 多期投资组合选择的不确定风险指数模型

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772314

Xiaoxia Huang, L. Qiao

引用次数: 1

Accelerating Multimedia Applications Using Intel Threading Building Blocks on Multi-Core Processors 在多核处理器上使用英特尔线程构建块加速多媒体应用程序

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772423

Cheong-Ghil Kim

{"title":"Accelerating Multimedia Applications Using Intel Threading Building Blocks on Multi-Core Processors","authors":"Cheong-Ghil Kim","doi":"10.1109/ICISA.2011.5772423","DOIUrl":"https://doi.org/10.1109/ICISA.2011.5772423","url":null,"abstract":"The recent development on semiconductor process and design technologies enables multi-core processors to become a dominant market trend in desk-top PCs as well as high end mobile devices. At the same time, the increasing popularity of high quality digital contents processing makes processors to quip with dedicated instructions based on sub-word parallelism in order to process streaming data. This paper presents a way of optimizations of 2D convolution operator, a widely used technique in image and signal processing applications, on speed in Intel multi-core processors. Two optimization techniques are discussed in detail. One is the streaming SIMD (Single Instruction Multiple Data) extension (SSE) technology, available in Intel processors, for data parallelism. The other is the Intel TBB (Threading Building Block) run-time library to exploit parallelism in task level. As a result, this paper can investigate the advantage of two different parallelisms, both data and task, concurrently. For the performance evaluation, we implemented Sobel operator using SSE and TBB with different combinations and compared their processing speeds. The results show that both technologies have a significant effect on the performance and the processing speed can be greatly improved when using two technologies at the same time.","PeriodicalId":425210,"journal":{"name":"2011 International Conference on Information Science and Applications","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122510817","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}

引用次数: 6

A Model Driven Framework to Compose Heterogeneous Services 组合异构服务的模型驱动框架

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772398

Soodeh Farokhi, A. Ghaffari, A. Nikravesh, F. Shams

引用次数: 3

Integration Technology of Literature Contents Based on SaaS 基于SaaS的文献内容集成技术

2011 International Conference on Information Science and Applications Pub Date : 2011-04-26 DOI: 10.1109/ICISA.2011.5772387

Jungsoo Han, Gui-Jung Kim

引用次数: 0