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Int. J. Handheld Comput. Res.最新文献

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Sampling and Reconstructing User Experience 采样和重构用户体验
Int. J. Handheld Comput. Res. Pub Date : 2011-07-01 DOI: 10.4018/jhcr.2011070104
P. Markopoulos, Vassilis-Javed Khan
{"title":"Sampling and Reconstructing User Experience","authors":"P. Markopoulos, Vassilis-Javed Khan","doi":"10.4018/jhcr.2011070104","DOIUrl":"https://doi.org/10.4018/jhcr.2011070104","url":null,"abstract":"The Experience Sampling and Reconstruction ESRM method is a research method suitable for user studies conducted in situ that is needed for the design and evaluation of ambient intelligence technologies. ESRM is a diary method supported by a distributed application, Reconexp, which runs on a mobile device and a website, enabling surveying user attitudes, experiences, and requirements in field studies. ESRM combines aspects of the Experience Sampling Method and the Day Reconstruction Method aiming to reduce data loss, improve data quality, and reduce burden put upon participants. The authors present a case study of using this method in the context of a study of communication needs of working parents with young children. Requirements for future developments of the tool and the method are discussed.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117342697","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
Threshold-Based Location-Aware Access Control 基于阈值的位置感知访问控制
Int. J. Handheld Comput. Res. Pub Date : 2011-07-01 DOI: 10.4018/jhcr.2011070102
R. Peeters, Dave Singelée, B. Preneel
{"title":"Threshold-Based Location-Aware Access Control","authors":"R. Peeters, Dave Singelée, B. Preneel","doi":"10.4018/jhcr.2011070102","DOIUrl":"https://doi.org/10.4018/jhcr.2011070102","url":null,"abstract":"Designing a secure, resilient and user-friendly access control system is a challenging task. In this article, a threshold-based location-aware access control mechanism is proposed. This design uniquely combines the concepts of secret sharing and distance bounding protocols to tackle various security vulnerabilities. The proposed solution makes use of the fact that the user carries around various personal devices. This solution offers protection against any set of or fewer compromised user's devices, with being an adjustable threshold number. It removes the single point of failure in the system, as access is granted when one carries any set of user's devices. Additionally it supports user-centered management, since users can alter the set of personal devices and can adjust the security parameters of the access control scheme towards their required level of security and reliability.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"31 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115281310","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
A Generic Context Interpreter for Pervasive Context-Aware Systems 一个通用的上下文解释器，用于普遍的上下文感知系统
Int. J. Handheld Comput. Res. Pub Date : 2011-04-01 DOI: 10.4018/jhcr.2011040105
Been-Chian Chien, Shiang-Yi He
{"title":"A Generic Context Interpreter for Pervasive Context-Aware Systems","authors":"Been-Chian Chien, Shiang-Yi He","doi":"10.4018/jhcr.2011040105","DOIUrl":"https://doi.org/10.4018/jhcr.2011040105","url":null,"abstract":"Developing pervasive context-aware systems to construct smart space applications has attracted much attention from researchers in recent decade. Although many different kinds of context-aware computing paradigms were built of late years, it is still a challenge for researchers to extend an existing system to different application domains and interoperate with other service systems due to heterogeneity among systems This paper proposes a generic context interpreter to overcome the dependency between context and hardware devices. The proposed generic context interpreter contains two modules: the context interpreter generator and the generic interpreter. The context interpreter generator imports sensor data from sensor devices as an XML schema and produces interpretation scripts instead of interpretation widgets. The generic interpreter generates the semantic context for context-aware applications. A context editor is also designed by employing schema matching algorithms for supporting context mapping between devices and context model.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128459083","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: 0
Ontology-Based Personal Annotation Management on Semantic Peer Network to Facilitating Collaborations in e-Learning 基于本体的语义对等网络个人标注管理促进网络学习协作
Int. J. Handheld Comput. Res. Pub Date : 2011-04-01 DOI: 10.4018/jhcr.2011040102
Ching-Long Yeh, Chun-Fu Chang, Po-Shen Lin
{"title":"Ontology-Based Personal Annotation Management on Semantic Peer Network to Facilitating Collaborations in e-Learning","authors":"Ching-Long Yeh, Chun-Fu Chang, Po-Shen Lin","doi":"10.4018/jhcr.2011040102","DOIUrl":"https://doi.org/10.4018/jhcr.2011040102","url":null,"abstract":"The trend of services on the web is making use of resources on the web collaborative. Semantic Web technology is used to build an integrated infrastructure for the new services. This paper develops a distributed knowledge based system using the RDF/OWL technology on peer-to-peer networks to provide the basis of building personal social collaboration services for e-Learning. This paper extends the current tools accompanied with lecture content to become annotation sharable using the distributed knowledge base.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130559993","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: 4
Annotation and Auto-Scrolling for Web Page Overview in Mobile Web Browsing 移动网络浏览中网页概览的注释和自动滚动
Int. J. Handheld Comput. Res. Pub Date : 2010-10-01 DOI: 10.4018/jhcr.2010100104
Yuki Arase, T. Hara, T. Uemukai, S. Nishio
{"title":"Annotation and Auto-Scrolling for Web Page Overview in Mobile Web Browsing","authors":"Yuki Arase, T. Hara, T. Uemukai, S. Nishio","doi":"10.4018/jhcr.2010100104","DOIUrl":"https://doi.org/10.4018/jhcr.2010100104","url":null,"abstract":"Due to advances in mobile phones, mobile Web browsing has become increasingly popular. In this regard, small screens and poor input capabilities of mobile phones prevent users from comfortably browsing Web pages that are designed for desktop PCs. One of the serious problems of mobile Web browsing is that users often get lost in a Web page and can only view a small portion of a Web page at a time, not able to grasp the entire page's structure to decide which direction their information of interest is located. To solve this problem, an effective technique is to present an overview of the page. Although prior studies adopted the conventional style of overview, that is, a scaled-down image of the page, this is not sufficient because users cannot see details of the contents. Therefore, in this paper, the authors present annotations on a Web page that provides a functionality which automatically scrolls the page. Results of a user experiment show that annotations are informative for users who want to find contents from a large Web page.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114523270","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: 5
A Picture and a Thousand Words: Visual Scaffolding for Mobile Communication in Developing Regions 一图千言:发展中地区移动通信的视觉脚手架
Int. J. Handheld Comput. Res. Pub Date : 2010-10-01 DOI: 10.4018/jhcr.2010100105
Robert G. Farrell, C. Danis, T. Erickson, Jason B. Ellis, Jim Christensen, Mark Bailey, W. Kellogg
{"title":"A Picture and a Thousand Words: Visual Scaffolding for Mobile Communication in Developing Regions","authors":"Robert G. Farrell, C. Danis, T. Erickson, Jason B. Ellis, Jim Christensen, Mark Bailey, W. Kellogg","doi":"10.4018/jhcr.2010100105","DOIUrl":"https://doi.org/10.4018/jhcr.2010100105","url":null,"abstract":"Mobile communication is a key enabler for economic, social, and political change in developing regions of the world. This paper describes IBM Picture Discussions, which is a mobile social computing application framework designed to facilitate local information sharing in regions with sparse Internet connectivity, low literacy rates, and having users with little prior experience with information technology. IBM Picture Discussions runs on today's internet-enabled smartphones as well as camera phones with multimedia messaging. In this paper, the authors argue that engaging citizens in developing regions in information creation and information sharing leverages peoples' existing social networks to facilitate transmission of critical information, exchange of ideas, and distributed problem solving. All of these activities can support economic development.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133302520","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: 12
Session and Network Support for Autonomous Context-Aware Multiparty Communications in Heterogeneous Mobile Systems 异构移动系统中自主上下文感知多方通信的会话和网络支持
Int. J. Handheld Comput. Res. Pub Date : 2010-10-01 DOI: 10.4018/jhcr.2010100101
J. Antoniou, C. Christophorou, A. Neto, S. Sargento, F. Pinto, N. Carapeto, T. Mota, J. Simões, A. Pitsillides
{"title":"Session and Network Support for Autonomous Context-Aware Multiparty Communications in Heterogeneous Mobile Systems","authors":"J. Antoniou, C. Christophorou, A. Neto, S. Sargento, F. Pinto, N. Carapeto, T. Mota, J. Simões, A. Pitsillides","doi":"10.4018/jhcr.2010100101","DOIUrl":"https://doi.org/10.4018/jhcr.2010100101","url":null,"abstract":"The increase of networking complexity requires the design of new performance optimization schemes for delivering different types of sessions to users under different conditions. In this regard, special attention is given to multi-homed environments, where mobile devices cross areas with overlapping access technologies Wi-Fi, 3G, WiMax. In such a scenario, efficient multiparty delivery depends upon the grouping operation, which must be done based on several parameters. In this paper, the authors propose context-aware sub-grouping of content-based service groups so that the same service session can be delivered using different codings of the same content, adapting to current network, users, session, and environment context. The context-aware information is used to improve the sub-grouping process. This paper aims to describe these sub-grouping techniques, and in particular how they improve network performance and user experience in the future Internet by focusing on the improved network-level and session-level mechanisms.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124981110","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: 13
Peer Assist Live Streaming Overlay for Next-Generation-Networks 对等协助直播覆盖下一代网络
Int. J. Handheld Comput. Res. Pub Date : 2010-10-01 DOI: 10.4018/jhcr.2010100102
Julius Mueller, T. Magedanz, J. Fiedler
{"title":"Peer Assist Live Streaming Overlay for Next-Generation-Networks","authors":"Julius Mueller, T. Magedanz, J. Fiedler","doi":"10.4018/jhcr.2010100102","DOIUrl":"https://doi.org/10.4018/jhcr.2010100102","url":null,"abstract":"The rapid evolution of the telecommunication domain increases the performance of different access networks continuously. New services, especially in the domain multimedia content distribution, require higher and higher bandwidth at the user's and service provider's side. Multimedia services like Video on Demand, IPTV, and live streaming were introduced in the past and are still improved in quality and quantity. Multimedia streams and Peer to Peer P2P file sharing dominates the worldwide Internet traffic nowadays and will continue further Schulze, 2009. The user acceptance of enjoying multimedia content over the Internet will grow steadily together with the increasing quality of the available multimedia content. Network operators and service providers have to face the growths by increasing their service platform with higher performance and bandwidth or introducing a scalable solution. In this paper, the authors present an algorithm for scalable P2P live streaming in Next-Generation-Networks NGN that addresses this challenge. An evaluation proves the performance of the implementation of this algorithm in a demo scenario.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114862554","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
Exploring Personal Mobile Phones and Digital Display Systems to Support Indoor Navigation by Formative Study Methods 通过形成性学习方法探索个人移动电话和数字显示系统以支持室内导航
Int. J. Handheld Comput. Res. Pub Date : 2010-07-01 DOI: 10.4018/jhcr.2010070103
Faisal Taher, K. Cheverst, Mike Harding
{"title":"Exploring Personal Mobile Phones and Digital Display Systems to Support Indoor Navigation by Formative Study Methods","authors":"Faisal Taher, K. Cheverst, Mike Harding","doi":"10.4018/jhcr.2010070103","DOIUrl":"https://doi.org/10.4018/jhcr.2010070103","url":null,"abstract":"A significant difference exists between wayfinding support services available in outdoor and indoor locations. Users in outdoor locations can access services like Google Maps via a mobile phone and in-car GPS, which allows them to examine unknown locations before arrival as well as receive assistance en-route. In contrast, there is relatively little digital wayfinding support for users in indoor locations, where users are limited to using in-building signage or asking for directions. However, advances in pervasive digital technology allow new possibilities and make this topic increasingly subject to research study. This paper describes three separate formative studies involving 24 participants using personal mobile phones, a situated display deployment and a Person Locator Kiosk. The authors present their findings by gaining feedback and insights from users to develop useful and usable wayfinding support for visitors in an in-building environment.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134009511","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
Commanding the Cloud by Moving a Camera Phone 通过移动照相手机来控制云
Int. J. Handheld Comput. Res. Pub Date : 2010-07-01 DOI: 10.4018/jhcr.2010070105
L. Spaanenburg, Dalong Zhang, Miao Chen, A. Rossholm
{"title":"Commanding the Cloud by Moving a Camera Phone","authors":"L. Spaanenburg, Dalong Zhang, Miao Chen, A. Rossholm","doi":"10.4018/jhcr.2010070105","DOIUrl":"https://doi.org/10.4018/jhcr.2010070105","url":null,"abstract":"Major innovations are based on novel input devices, for example, the mouse and its role in revolutionizing the PC world. Some innovations are even over-looked, such as the touch screen, until it made quite a trendy return in the shape of the Apple iPhone. All such specialized devices will dwarf into remote handling applications in the cloud by a generalized device, that is, the camera phone. This paper shows that camera movement can be extracted from capture images by a limited block-matching based search. The CPU load is less than 20% and does not increase with image size.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132687364","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: 1
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