{"title":"Efficient Information Source Monitoring Method Considering User Utility in Large-Scale Networks","authors":"S. Sugawara, Kengo Honda, Y. Ishibashi","doi":"10.1109/SAINT.2011.74","DOIUrl":"https://doi.org/10.1109/SAINT.2011.74","url":null,"abstract":"This paper proposes an efficient information monitoring method in large-scale network, which adjusts its observation intervals according to the information sources' update intervals considering user utility decrease and monitoring cost. The usefulness of the proposal is shown by using computer simulations while the observation cost is neither extremely emphasized nor neglected.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117155008","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}
{"title":"Parallel Evolutionary P2P Networking for Realizing Adaptive Large-Scale Networks","authors":"K. Ohnishi, Y. Oie","doi":"10.1109/SAINT.2011.98","DOIUrl":"https://doi.org/10.1109/SAINT.2011.98","url":null,"abstract":"The present paper proposes a parallel evolutionary P2P networking technique (P-EP2P) that applies an evolutionary networking technique (EP2P) in parallel to small networks into which an entire P2P network is divided. EP2P dynamically and adaptively optimizes several P2P network topologies, in which all of the nodes are included at the same time, in an evolutionary manner. However, EP2P has a scalability problem that load is more concentrated in a particular node as the number of nodes increases. The aim of P-EP2P is to first balance load among the nodes to maintain the function of the entire network and then bring adaptability even to a large-scale P2P network. Simulation results reveal that P-EP2P is capable of balancing load among the nodes, but degrades search reliability as the number of the small networks increases, which indicates that there is a trade-off relationship between the load balancing and the search reliability. The results suggest that to enhance the search reliability, the small networks should exchange information among them to maintain consistency of the network topologies, though that causes additional load to the nodes.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125439772","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}
{"title":"Effects of Length and Number of Paths on Simultaneous Multi-path Communication","authors":"Akiji Tanaka","doi":"10.1109/SAINT.2011.38","DOIUrl":"https://doi.org/10.1109/SAINT.2011.38","url":null,"abstract":"Simultaneous multi-path communication (SMPC) is proposed to improve communication performance over a congested network. Two types of SMPC were examined: SMPC-I, which uses multiple paths independently, and SMPCP, which uses a path priority control algorithm in conjunction with SMPC. A network simulator was developed in order to clarify communications behavior in SMPC, in the case of a long sub-path and in the case of three paths. Based on the simulation results, both SMPC-I and SMPC-P maintain throughput regardless of path length, and priority control of SMPC-P works with three available paths. In addition, the load on data links of SMPC-P is found to be less than that of SMPC-I. Therefore, SMPC-P is effective as a communication method on a congested network.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115584723","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}
K. Rechert, Sven Wohlgemuth, I. Echizen, N. Sonehara
{"title":"User Centric Privacy in Mobile Communication Scenarios","authors":"K. Rechert, Sven Wohlgemuth, I. Echizen, N. Sonehara","doi":"10.1109/SAINT.2011.36","DOIUrl":"https://doi.org/10.1109/SAINT.2011.36","url":null,"abstract":"One common assumption when defining location privacy metrics is that one is dealing with attackers whose objective is to re-identify an individual out of an anonymized data set. However, today's communication scenarios are more diverse. For instance, there are several entities involved in mobile location sharing between individuals. Hence, in a communication relation with a service provider (e.g. SNS or network infrastructure) or with social contacts, an anonymity approach seems inadequate. Between each user and every single entity involved there is some level of trust and the identities are already known, at least to some extent. Hence, taking an anonymity approach for communication relations to peers or service providers (e.g. SNS or network infrastructure) seems to be inadequate. Therefore, we present an attacker model and propose a user-centric privacy metric to allow a user to uncover the extent of information disclosure and to evaluate autonomously his privacy level in a communication relation with semi-trusted listener groups. The goal of such a metric is to enable an individual to estimate the privacy loss caused by disclosing location information in a specific communication scenario and thus enabling the user to make informed choices, e.g. choose the right protection mechanism.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122586812","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}
N. Cooharojananone, S. Chofa, Suphakant Phimoltares
{"title":"A Study on Intention to Use Factor in the Internet Banking Websites in Thailand","authors":"N. Cooharojananone, S. Chofa, Suphakant Phimoltares","doi":"10.1109/SAINT.2011.103","DOIUrl":"https://doi.org/10.1109/SAINT.2011.103","url":null,"abstract":"the objective of this paper is to study the effect usability perspectives of banking service websites on the intention to use perspective. The questionnaire survey was conducted to ask university students who have experience on using internet but do not have experience on using internet banking website. They were asked to evaluate by randomly selecting a bank and a tasks. In the experiment, eight perspectives are reliability functionality, efficiency, ease of use, design, learn ability, satisfaction and security. Reliability, factor and regression analysis were conducted to find the effect between these eight on intention to use. Hypothesis on user' hometown (Urban vs. Rural) toward intention to use is also studied.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114487888","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}
A. Dou, V. Kalogeraki, D. Gunopulos, Taneli Mielikäinen, V. Tuulos, Sean Foley, Curtis Yu
{"title":"Data Clustering on a Network of Mobile Smartphones","authors":"A. Dou, V. Kalogeraki, D. Gunopulos, Taneli Mielikäinen, V. Tuulos, Sean Foley, Curtis Yu","doi":"10.1109/SAINT.2011.25","DOIUrl":"https://doi.org/10.1109/SAINT.2011.25","url":null,"abstract":"We present Dowser, a system for data clustering in a network of mobile smart phones. Dowser comprises three components: (a) a distributed framework, implemented on mobile phones that eases the programmability and deployment of applications on the devices using simple programming primitives, (b) a data gathering component that tracks the movement of wireless device owners and collects wireless connectivity data, and (c) a clustering algorithm that allows users to combine their individual data, that is distributed and energy efficient. Our detailed experimental results over our test bed of Nokia N95 8GB smart phones, illustrate that our system is practical, depicts good performance and has low energy and resource overhead.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129801573","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}
{"title":"Evaluation of Time-Sensitive Information Multicasting Using Tree-Structured Overlay Network","authors":"A. Tagami, M. Takahara, S. Ano, Kenji Suzuki","doi":"10.1109/SAINT.2011.31","DOIUrl":"https://doi.org/10.1109/SAINT.2011.31","url":null,"abstract":"The multicasting of information is needed in a variety of situations. For example, when a local government has the necessity to distribute emergency information of natural disaster to the public or when a shop advertises goods for a time-limited sale. This information is generally time-sensitive and needs to deliver quickly. We have studied multicasting of such time-sensitive information using a tree-structured overlay network, and have shown that the overlay network allows information to be delivered quickly. In this paper, we show the validity of tree-structured overlay network through conducting several experiments under real conditions, and analyze the advantages of P2P architecture in more general situation.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129171133","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}
Yoshiki Ishikawa, N. Yamai, K. Okayama, Motonori Nakamura
{"title":"An Identification Method of PCs behind NAT Router with Proxy Authentication on HTTP Communication","authors":"Yoshiki Ishikawa, N. Yamai, K. Okayama, Motonori Nakamura","doi":"10.1109/SAINT.2011.83","DOIUrl":"https://doi.org/10.1109/SAINT.2011.83","url":null,"abstract":"NAT (Network Address Translation) is widely used as a technique that shares a single IP address in several PCs, and is widely used for alleviating the IPv4 address exhaustion and as a security solution. However, when a backbone network has access control function for PCs based on their IP addresses, it can not identify the PCs behind a NAT router since their original IP addresses are hidden by the NAT router. In this research, to solve this problem, we focus on www which is the most popular service of the Internet and propose an identification method of PCs behind a NAT router with proxy authentication. In this method, we modified the proxy server so that it is able to identify PCs by using the field called realm in the authentication header and allocating it uniquely to PCs.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127645461","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}
{"title":"Toward Better Recommender System by Collaborative Computation with Privacy Preserved","authors":"C.-L.A. Hsieh","doi":"10.1109/SAINT.2011.46","DOIUrl":"https://doi.org/10.1109/SAINT.2011.46","url":null,"abstract":"Recommender systems are best known for the usage on E-commerce websites, with the aim of helping customers in the decision making and product selection process by providing a list of recommended items. Since most of the recommender systems of E-commerce websites suffer from data scarcity, joining recommender system databases is said to improve the prediction and recommendation results. However, there will be a risk of revealing the raw customer-product information by sharing the databases between websites. In this research, a new scenario of collaborative computation is proposed. A very preliminary result has shown the advantage of joining recommender systems. In addition, private user raw data is preserved while doing collaborative computation for better recommendations.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115846709","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}
Jussi Kiljander, Janne Takalo-Mattila, Matti Eteläperä, J. Soininen, Kari Keinänen
{"title":"Enabling End-Users to Configure Smart Environments","authors":"Jussi Kiljander, Janne Takalo-Mattila, Matti Eteläperä, J. Soininen, Kari Keinänen","doi":"10.1109/SAINT.2011.58","DOIUrl":"https://doi.org/10.1109/SAINT.2011.58","url":null,"abstract":"Our everyday living environments are inhabited by a huge and constantly increasing number of electronic devices. Smart Environment is a common name for a physical place where these various devices interact with each other in order to provide useful services for the end-user. Because different people usually have different kind of needs it is important that the user is able to configure the Smart Environment so that the services provided to individual user are in fact useful. In this paper, we present an approach for enabling end-user to configure how the Smart Environments functions. In our approach we utilize Semantic Web technologies and publish/subscribe based architecture for providing semantic interoperability in the Smart Environment. As a proof of concept, we present a reference implementation of a tool that can be used to configure Smart Environments and a case study in a smart greenhouse domain.","PeriodicalId":229809,"journal":{"name":"2011 IEEE/IPSJ International Symposium on Applications and the Internet","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133168103","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}