H. Maeda, Hiroyuki Terashima, Yongmei Zhang, T. Shinohara
Propagation and filtering characteristics of two dimensional pillar-type photonic crystal wave guide with hexagonal resonator were experimentally demonstrated. Measurement was done by using a scale model in microwave frequency with lattice period P=26.5 mm, diameter of pillar phi=7.5 mm and its dielectric constant epsilon_r=36.0 around 4 GHz. First, single isolated wave guide was set up by using line-defect in array of pillars. After confirming wave guide operation in frequency range between 3.6 and 4.2 GHz, a hexagonal resonator which have side length of 4P along with center of resonator wave guide, was situated between a pair of input/output wave guides. The hexagonal resonator showed frequency dependent transmission characteristics to output ports at frequencies corresponding to lambda_g as propagating wave. Applying good separation characteristics with respect to input frequency, this resonator circuit is available for signal drop device for wavelength division multiplexing (WDM) system.
{"title":"Hexagonal Resonator in Two Dimensional Photonic Crystal Structure","authors":"H. Maeda, Hiroyuki Terashima, Yongmei Zhang, T. Shinohara","doi":"10.1109/INCoS.2011.99","DOIUrl":"https://doi.org/10.1109/INCoS.2011.99","url":null,"abstract":"Propagation and filtering characteristics of two dimensional pillar-type photonic crystal wave guide with hexagonal resonator were experimentally demonstrated. Measurement was done by using a scale model in microwave frequency with lattice period P=26.5 mm, diameter of pillar phi=7.5 mm and its dielectric constant epsilon_r=36.0 around 4 GHz. First, single isolated wave guide was set up by using line-defect in array of pillars. After confirming wave guide operation in frequency range between 3.6 and 4.2 GHz, a hexagonal resonator which have side length of 4P along with center of resonator wave guide, was situated between a pair of input/output wave guides. The hexagonal resonator showed frequency dependent transmission characteristics to output ports at frequencies corresponding to lambda_g as propagating wave. Applying good separation characteristics with respect to input frequency, this resonator circuit is available for signal drop device for wavelength division multiplexing (WDM) system.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126732069","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}
Most of traditional studies on information recommendation systems aim at recommending highly satisfactory information in a one-time or small number of uses of a system or service, and never take it into account that the user would feel tired of the same system or service after they have used it many times over. This study has modeled the human nature of being tired of the same thing and enabled the measurement of the degree of such boredom. This time, the study has implemented an information recommendation system that has features to (1) visualize the degree of the user's boredom and (2) recommend information that can reduce it. Then, an evaluation experiment was conducted using a system developed. The result of an evaluation experiment shows that the@system@can get the user less bored and more satisfied when used continuously.
{"title":"A Study on Information Recommendation Systems for Continuous Use","authors":"H. Shoji, Hiroo Inamura, A. Ogino","doi":"10.1109/INCoS.2011.40","DOIUrl":"https://doi.org/10.1109/INCoS.2011.40","url":null,"abstract":"Most of traditional studies on information recommendation systems aim at recommending highly satisfactory information in a one-time or small number of uses of a system or service, and never take it into account that the user would feel tired of the same system or service after they have used it many times over. This study has modeled the human nature of being tired of the same thing and enabled the measurement of the degree of such boredom. This time, the study has implemented an information recommendation system that has features to (1) visualize the degree of the user's boredom and (2) recommend information that can reduce it. Then, an evaluation experiment was conducted using a system developed. The result of an evaluation experiment shows that the@system@can get the user less bored and more satisfied when used continuously.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116703879","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}
On-line collaborative learning is a mature research field that benefits from collaborative activities which can increase learning efficacy. However, collaborative learning approaches are still not beneficial in every e-learning experience because they require people's presence and collaboration is many times difficult to achieve. It is remarkable that collaborative learning resources still suffer from endemic problems, such as the lack of authentic interactivity, user empowerment, social identity and challenge, thus having a negative effect in learner motivation and engagement. To overcome these and other limitations and deficiencies, we propose a new type of learning object named Complex Collaborative Learning Objects to support the virtualization of collaborative sessions with the aim to leverage the knowledge elicited during live sessions of collaborative learning, which are augmented with author-generated information, in order to produce interactive and attractive resources to be played by learners. In order to improve social engagement, during the CC-LO execution, a VCS is animated so learners can observe how avatars discuss and collaborate, how discussion threads grow and how knowledge is been constructed, refined and consolidated. Furthermore, learners can interact with the CC-LO to modify some parameters observing the consequences and assessing their understanding. The research reported in this paper is currently undertaken within a FP7 European project called ALICE.
{"title":"CC-LO: A New Type of Learning Object for the Virtualization of Live Collaborative Sessions","authors":"S. Caballé, N. Mora, I. Dunwell, D. Gañán","doi":"10.1109/INCOS.2011.59","DOIUrl":"https://doi.org/10.1109/INCOS.2011.59","url":null,"abstract":"On-line collaborative learning is a mature research field that benefits from collaborative activities which can increase learning efficacy. However, collaborative learning approaches are still not beneficial in every e-learning experience because they require people's presence and collaboration is many times difficult to achieve. It is remarkable that collaborative learning resources still suffer from endemic problems, such as the lack of authentic interactivity, user empowerment, social identity and challenge, thus having a negative effect in learner motivation and engagement. To overcome these and other limitations and deficiencies, we propose a new type of learning object named Complex Collaborative Learning Objects to support the virtualization of collaborative sessions with the aim to leverage the knowledge elicited during live sessions of collaborative learning, which are augmented with author-generated information, in order to produce interactive and attractive resources to be played by learners. In order to improve social engagement, during the CC-LO execution, a VCS is animated so learners can observe how avatars discuss and collaborate, how discussion threads grow and how knowledge is been constructed, refined and consolidated. Furthermore, learners can interact with the CC-LO to modify some parameters observing the consequences and assessing their understanding. The research reported in this paper is currently undertaken within a FP7 European project called ALICE.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128344954","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}
The IMS (IP Multimedia Subsystem) can provide multimedia services between heterogeneous wireless networks. But the efficiency of the service session handoff will bring a significant impact to user experience. For the integration of heterogeneous wireless networks, we propose a SIP-based multimedia service session handoff method named MS2HM. To reduce the handoff delay between heterogeneous wireless networks, the MS2HM uses the methods of advance registration and old-new address temporary matching. We modeled the node processing delay and network transmission delay, and analyze the total delay and the packet loss rate of the MS2HM. The MS2HM can meet the low delay and low packet loss rate requirements of IMS service session handoff between heterogeneous wireless networks, and ensure the QoS of the IMS services.
{"title":"MS2HM: A Multimedia Service Session Handoff Method between Heterogeneous Wireless Networks","authors":"Yulong Shen, Zhiwei Zhang, Jianfeng Ma, Qingqi Pei, Qijian Xu, H. Yin","doi":"10.1109/INCoS.2011.121","DOIUrl":"https://doi.org/10.1109/INCoS.2011.121","url":null,"abstract":"The IMS (IP Multimedia Subsystem) can provide multimedia services between heterogeneous wireless networks. But the efficiency of the service session handoff will bring a significant impact to user experience. For the integration of heterogeneous wireless networks, we propose a SIP-based multimedia service session handoff method named MS2HM. To reduce the handoff delay between heterogeneous wireless networks, the MS2HM uses the methods of advance registration and old-new address temporary matching. We modeled the node processing delay and network transmission delay, and analyze the total delay and the packet loss rate of the MS2HM. The MS2HM can meet the low delay and low packet loss rate requirements of IMS service session handoff between heterogeneous wireless networks, and ensure the QoS of the IMS services.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131661202","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}
S. T. Marín, N. Bessis, M. R. Martínez-Torres, Florian Franc, F. Barrero, F. Xhafa
For several decades, academics around the world have been collaborating with the view to support the development of their research domain. Having said that, the majority of scientific and technological policies try to encourage the creation of strong inter-related research groups in order to improve the efficiency of research outcomes and subsequently research funding allocation. In this paper, we attempt to highlight and thus, to demonstrate how these collaborative networks are developing in practice. To achieve this, we have developed an automated tool for extracting data about joint article publications and analyzing them from the perspective of social network analysis. In this case study, we have limited data from works published in 2010 by England academic and research institutions. The outcomes of this work can help policy makers in realising the current status of research collaborative networks in England.
{"title":"An Exploratory Social Network Analysis of Academic Research Networks","authors":"S. T. Marín, N. Bessis, M. R. Martínez-Torres, Florian Franc, F. Barrero, F. Xhafa","doi":"10.1109/INCOS.2011.49","DOIUrl":"https://doi.org/10.1109/INCOS.2011.49","url":null,"abstract":"For several decades, academics around the world have been collaborating with the view to support the development of their research domain. Having said that, the majority of scientific and technological policies try to encourage the creation of strong inter-related research groups in order to improve the efficiency of research outcomes and subsequently research funding allocation. In this paper, we attempt to highlight and thus, to demonstrate how these collaborative networks are developing in practice. To achieve this, we have developed an automated tool for extracting data about joint article publications and analyzing them from the perspective of social network analysis. In this case study, we have limited data from works published in 2010 by England academic and research institutions. The outcomes of this work can help policy makers in realising the current status of research collaborative networks in England.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134314146","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}
Zhitu Su, Chun-hui Sun, Hui Li, Jianfeng Ma, K. Fan
In pairing-based cryptography, Miller's algorithm plays a key role in the calculation of pairing. Currently, most of the optimizations of Miller's algorithm are of serial structure. In this paper, we propose a parallel method for efficiently computing pairing. Our method can be applied to super singular elliptic curves and ordinary elliptic curves which are suitable for pairing-based cryptography. Compared with general version of Miller's algorithm, our method has a gain of around 50.0%.
{"title":"Fast Parallel Computation of Tate Pairing","authors":"Zhitu Su, Chun-hui Sun, Hui Li, Jianfeng Ma, K. Fan","doi":"10.1109/INCoS.2011.93","DOIUrl":"https://doi.org/10.1109/INCoS.2011.93","url":null,"abstract":"In pairing-based cryptography, Miller's algorithm plays a key role in the calculation of pairing. Currently, most of the optimizations of Miller's algorithm are of serial structure. In this paper, we propose a parallel method for efficiently computing pairing. Our method can be applied to super singular elliptic curves and ordinary elliptic curves which are suitable for pairing-based cryptography. Compared with general version of Miller's algorithm, our method has a gain of around 50.0%.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134389075","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}
This paper has presented acquiring method for agents' actions using Ant Colony Optimization (ACO) in multi-agent system. ACO is one of powerful meta-heuristics algorithms and some researchers have reported the effectiveness of some applications with the algorithm [1-4]. I have developed fire brigade agents using proposed method in RoboCup rescue simulation system. The final goal of this research is an achievement of co-operations for hetero-agent in multi-agent systems. Then this research for implementation for fire brigade agents in my team is the first step of this goal.
{"title":"Introduction of Acquiring Method for Agents' Actions with Simple Ant Colony Optimization in RoboCup Rescue Simulation System","authors":"Hisayuki Sasaoka","doi":"10.1109/INCoS.2011.105","DOIUrl":"https://doi.org/10.1109/INCoS.2011.105","url":null,"abstract":"This paper has presented acquiring method for agents' actions using Ant Colony Optimization (ACO) in multi-agent system. ACO is one of powerful meta-heuristics algorithms and some researchers have reported the effectiveness of some applications with the algorithm [1-4]. I have developed fire brigade agents using proposed method in RoboCup rescue simulation system. The final goal of this research is an achievement of co-operations for hetero-agent in multi-agent systems. Then this research for implementation for fire brigade agents in my team is the first step of this goal.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133941459","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}
In recent years, there have been to studied to construct a new network infrastructure for accepting evolved network technology. There is a research of controlling the network by "Flow". Flow is used a combination of layers of L4 from L2, to identify the communication network traffic. High Performance Packet Processing Engine (HPPPE), that FUJITSU developed, is one of the next generation packet processing engine. This system can process data from low-layer up to high-layer according to the format of the data being used per service. HPPPE provides service functions as add-on. In Saga University, user authentication system for using network named Open gate has been developed and used widely from 2001. In this study, we have developed network user authentication gateway system like Open gate using "HPPPE". This system determines using the network and ending the network based on "Flow".
{"title":"Development of Network User Authentication Gateway System Using \"High Performance Packet Processing Engine\"","authors":"Yuki Wakamizu, M. Otani, Kenzi Watanabe","doi":"10.1109/INCoS.2011.4","DOIUrl":"https://doi.org/10.1109/INCoS.2011.4","url":null,"abstract":"In recent years, there have been to studied to construct a new network infrastructure for accepting evolved network technology. There is a research of controlling the network by \"Flow\". Flow is used a combination of layers of L4 from L2, to identify the communication network traffic. High Performance Packet Processing Engine (HPPPE), that FUJITSU developed, is one of the next generation packet processing engine. This system can process data from low-layer up to high-layer according to the format of the data being used per service. HPPPE provides service functions as add-on. In Saga University, user authentication system for using network named Open gate has been developed and used widely from 2001. In this study, we have developed network user authentication gateway system like Open gate using \"HPPPE\". This system determines using the network and ending the network based on \"Flow\".","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113972681","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}
Wireless networks have become increasingly popular. They can provide mobile users with ubiquitous communication capability and information access regardless of locations. In this paper, we evaluate the throughput of wireless multihop networks by simulations. For simulations, we used ns-3 network simulator considering Ad hoc On-Demand Distance Vector (AODV), Optimized Link State Routing (OLSR) and Destination-Sequenced Distance-Vector (DSDV) routing protocols. We also evaluate the average throughput, the average packets received rate and the percentage of Constant Bit Rate (CBR) for different area sizes and different number of nodes. The evaluation results show that OLSR has the best performance than other protocols for smaller area.
{"title":"Mobile Ad-hoc Network Routing Protocols Performance Evaluation Using NS-3 Simulator","authors":"Makoto Ikeda, M. Hiyama, Elis Kulla, L. Barolli","doi":"10.1109/INCoS.2011.119","DOIUrl":"https://doi.org/10.1109/INCoS.2011.119","url":null,"abstract":"Wireless networks have become increasingly popular. They can provide mobile users with ubiquitous communication capability and information access regardless of locations. In this paper, we evaluate the throughput of wireless multihop networks by simulations. For simulations, we used ns-3 network simulator considering Ad hoc On-Demand Distance Vector (AODV), Optimized Link State Routing (OLSR) and Destination-Sequenced Distance-Vector (DSDV) routing protocols. We also evaluate the average throughput, the average packets received rate and the percentage of Constant Bit Rate (CBR) for different area sizes and different number of nodes. The evaluation results show that OLSR has the best performance than other protocols for smaller area.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124230311","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}
The development of information systems which simulate disaster preparedness and mitigation activities requires integration of large amount of data from different diversified data sources. The goal of our work is to provide an effective way to integrate such different, distributed data sources that would bring them into a standardized and exchangeable common data format and then to publish them as Linked Open Data (LOD). We describe different sets of published data sources and how they are interconnected with other sources in the LOD cloud in order to develop an information system which simulates disaster mitigation processes. Examples are provided in order to demonstrate the benefits of this system to vulnerable people and emergency management teams as well as other organizations involved in disaster management.
{"title":"Linked Data in Disaster Mitigation and Preparedness","authors":"Thushari Silva, V. Wuwongse, H. Sharma","doi":"10.1109/INCoS.2011.113","DOIUrl":"https://doi.org/10.1109/INCoS.2011.113","url":null,"abstract":"The development of information systems which simulate disaster preparedness and mitigation activities requires integration of large amount of data from different diversified data sources. The goal of our work is to provide an effective way to integrate such different, distributed data sources that would bring them into a standardized and exchangeable common data format and then to publish them as Linked Open Data (LOD). We describe different sets of published data sources and how they are interconnected with other sources in the LOD cloud in order to develop an information system which simulates disaster mitigation processes. Examples are provided in order to demonstrate the benefits of this system to vulnerable people and emergency management teams as well as other organizations involved in disaster management.","PeriodicalId":235301,"journal":{"name":"2011 Third International Conference on Intelligent Networking and Collaborative Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124428372","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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