Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia最新文献_第4页

PRISM: Policy-driven Risk-based Implicit locking for improving the Security of Mobile end-user devices PRISM:策略驱动的基于风险的隐式锁定，用于提高移动终端用户设备的安全性

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837157

Arun Ramakrishnan, Jochen Tombal, D. Preuveneers, Y. Berbers

{"title":"PRISM: Policy-driven Risk-based Implicit locking for improving the Security of Mobile end-user devices","authors":"Arun Ramakrishnan, Jochen Tombal, D. Preuveneers, Y. Berbers","doi":"10.1145/2837126.2837157","DOIUrl":"https://doi.org/10.1145/2837126.2837157","url":null,"abstract":"Nowadays, most mobile applications rely on device screen locking mechanisms for ensuring practical security, which expects the users to explicitly authenticate with a PIN or biometric irrespective of the perceived threats. Owing to this usability issues, many avoid using device locks potentially compromising the security. To overcome the limitations of this binary approach, we present an implicit authentication framework called PRISM (Policy-driven Risk-based Implicit locking for improving the Security of Mobile end-user devices). It provides risk based authentication by detecting anomalies in the usual behavior patterns of the users which include their expected locations, activities and application usage. Its device unlocking decisions are driven by policies that are defined either automatically by mining sensor data or manually by the end-users. Our experiments show that PRISM is able to discover useful behavior patterns efficiently even with limited data. The number of required explicit authentications is significantly reduced while assuring the preferred security for everyday scenarios.","PeriodicalId":268141,"journal":{"name":"Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133243059","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

Analysis of Motivation Strategies in Running Tracking Applications 跑步跟踪应用中的激励策略分析

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2839316

Christine Bauer, Simone Kriglstein

引用次数: 4

Comparing AODV and N-AODV Routing Protocols for Mobile Ad-hoc Networks 移动自组织网络中AODV和N-AODV路由协议的比较

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837129

A. Bianchi, S. Pizzutilo, G. Vessio

{"title":"Comparing AODV and N-AODV Routing Protocols for Mobile Ad-hoc Networks","authors":"A. Bianchi, S. Pizzutilo, G. Vessio","doi":"10.1145/2837126.2837129","DOIUrl":"https://doi.org/10.1145/2837126.2837129","url":null,"abstract":"Mobile Ad-hoc NETworks (MANETs) are wireless networks designed for communications among nomadic hosts in absence of fixed infrastructure. Different reactive protocols for MANETs, in which routes are established only when needed, provide different network topology awareness (NTA) to each host, depending on their algorithmic features. NACK-based AODV (N-AODV) is a variant of the well-known Ad-hoc On-demand Distance Vector (AODV) reactive protocol for MANETs we proposed with the aim of improving NTA of the original protocol. In this paper, a performance comparison between AODV and N-AODV is conducted in order to investigate whether N-AODV effectively improves NTA with respect to AODV, and how this improvement affects both its effectiveness and efficiency. The experiment is executed within a simulation environment. The obtained results show that a MANET adopting N-AODV exploits higher NTA than a MANET adopting AODV. Moreover, the improved awareness impacts effectiveness and efficiency of routing activities because, in the long-run, it results in a lower need to activate the route discovery process for establishing new communications sessions.","PeriodicalId":268141,"journal":{"name":"Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123163697","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

Analyzing Augmented Real Spaces Gamified through Fictionality 通过虚构分析增强现实空间的游戏化

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837162

Fumiko Ishizawa, Monami Takahashi, Keisuke Irie, Mizuki Sakamoto, T. Nakajima

引用次数: 8

Multi-platform mobile service creation: increasing brand touch-points for hotels 多平台移动服务创造:增加酒店品牌接触点

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837176

Elias Kärle, A. Fensel

引用次数: 1

Imitating Near Field Communication with Bluetooth Low Energy 模拟低功耗蓝牙近场通信

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837184

W. Narzt, Lukas Furtmüller

引用次数: 4

Dawn: Dependable Networking Framework for Multimedia-enabled Internet-of-Things Dawn:多媒体物联网的可靠网络框架

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837155

G. Ramachandran, Nelson Matthys, Sam Michiels, W. Joosen, D. Hughes

{"title":"Dawn: Dependable Networking Framework for Multimedia-enabled Internet-of-Things","authors":"G. Ramachandran, Nelson Matthys, Sam Michiels, W. Joosen, D. Hughes","doi":"10.1145/2837126.2837155","DOIUrl":"https://doi.org/10.1145/2837126.2837155","url":null,"abstract":"Developing reliable application for the Internet-of-Things (IoT) is challenging due to heterogenous sensors and the resource-constraints of IoT platforms. Multimedia sensors such as cameras and microphones require significant memory and bandwidth. Typically, multimedia content results in bursty traffic. It is shown in the literature that the bursty traffic degrades the performance of the network. Hence, the regulation of bursty transmission is important for achieving high reliability. In this paper, we propose Dawn, a dependable networking framework for time-synchronised IoT platforms, which uses application meta-data to derive bandwidth requirements and uses this information to optimally allocate bandwidth for the network. Dawn regulates the transmission of bursty traffic generated by multimedia sensors, while performing admission control for dynamically added sensors. Dawn guarantees end-to-end reliability for heterogenous IoT applications with minimal energy consumption. Our preliminary evaluation results show that dawn is dependable and provides 100% reliability for dynamic multimedia-enabled IoT applications while increasing the network lifetime by up to 4 years.","PeriodicalId":268141,"journal":{"name":"Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130483823","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

Geometry in the Real World: Mobile Image Processing for Educational Games 现实世界中的几何学:教育游戏的移动图像处理

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837148

J. Ferreira, Miguel Pedro, N. Correia

引用次数: 1

Accessible Urban Routes Reconstruction by Fusing Mobile Sensors Data 基于移动传感器数据融合的城市无障碍道路重建

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837158

G. Bardaro, A. Vali, S. Comai, M. Matteucci

{"title":"Accessible Urban Routes Reconstruction by Fusing Mobile Sensors Data","authors":"G. Bardaro, A. Vali, S. Comai, M. Matteucci","doi":"10.1145/2837126.2837158","DOIUrl":"https://doi.org/10.1145/2837126.2837158","url":null,"abstract":"Despite the recent attitude toward making modern urban cities accessible, many barriers and obstacles still challenge impaired people mobility every day. Having a complete and accurate map of both accessible paths and barriers could support people mobility and could drive urban planning renewing efforts. However, mapping accessible paths and barriers timely, and in an accurate way, requires a significant effort and it is often left to volunteers and no-profit associations. The Maps for Easy Paths (MEP) project represents an attempt to build accessibility maps (i.e., maps with accessible routes) fusing, in an automatic fashion, data implicitly collected through mobile devices carried by interested people when they move around the city. In particular, the paper focuses on the design of the MEP-Traces app used for the collection of relevant data and the MEP-Fusion engine for the reconstruction of accessible routes out of inertial readings and GPS measurements. Experimental results in reconstructing accessible routes in urban scenarios show the effectiveness of the approach in dealing with typical problems related to poor inertial sensors quality.","PeriodicalId":268141,"journal":{"name":"Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129877142","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

Accuracy of No-Reference Quality Metrics in Network-impaired Video Streams 网络受损视频流中无参考质量度量的准确性

Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia Pub Date : 2015-12-11 DOI: 10.1145/2837126.2837150

M. T. Vega, Vittorio Sguazzo, D. Mocanu, A. Liotta

{"title":"Accuracy of No-Reference Quality Metrics in Network-impaired Video Streams","authors":"M. T. Vega, Vittorio Sguazzo, D. Mocanu, A. Liotta","doi":"10.1145/2837126.2837150","DOIUrl":"https://doi.org/10.1145/2837126.2837150","url":null,"abstract":"The Video Quality Metric (VQM) is nowadays one of the most used objective methods to assess video quality, thanks to its high correlation with both the human visual system (HVS) and subjective methods. VQM is, however, not viable in real-time deployments such as mobile streaming, not only due to its high computational demands but, specifically, because it is a Full-Reference (FR) metric, which requires as input both the original video and its impaired counterpart. On the other hand, No-Reference (NR) objective algorithms operate directly on the impaired video and are considerably faster, but loose out when it comes to accuracy. In this research, we assess a range of NR metrics, alongside a lightweight FR metric, using VQM as benchmark. Our study covers a range of methods, a diverse set of video types and encoding conditions, and a range of network impairment test-cases. We show the extent by which packet loss affects different video types, correlating the accuracy of NR metrics to the FR benchmark. Our study helps identifying the conditions under which simple metrics may be used effectively and indicates an avenue to control the quality of streaming systems in line with human perception.","PeriodicalId":268141,"journal":{"name":"Proceedings of the 13th International Conference on Advances in Mobile Computing and Multimedia","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134066009","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