{"title":"Exploiting context for automatic check-in suggestion and validation","authors":"M. Valla, C. Frà","doi":"10.1109/PERCOMW.2011.5766903","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766903","url":null,"abstract":"Mobile social applications that allow users to share presence, opinions and recommendations about places are spreading rapidly. Among these, check-in applications are becoming increasingly popular, but present some issues. In this paper we illustrate a system to exploit user's context to perform automatic check-in validation and suggestion. A description of the system architecture and its technical components is given, focusing on how raw and inferred context data (position, motion status, contacts proximity, etc.) are used to validate and suggest check-ins automatically.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114575337","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}
Bo Xing, K. Gronowski, N. Radia, Martin Svensson, Andrew Ton
{"title":"PocketSocial: Your distributed social context now in your pocket","authors":"Bo Xing, K. Gronowski, N. Radia, Martin Svensson, Andrew Ton","doi":"10.1109/PERCOMW.2011.5766895","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766895","url":null,"abstract":"In the fast evolving social web domain, users have a growing demand for consuming context-aware social experiences and digital content. However, users currently have their social context distributed everywhere, and have limited ownership and control of it. On the other hand, application developers and content providers are having a hard time in reaching out to the right users and creating personalized experiences for them. This demonstration paper presents the PocketSocial service, as a solution to addressing these issues. PocketSocial enables users to own their distributed social context and fully control the access to it, and possibly trade it for values. From application developers and content providers' point of view, PocketSocial is the one place to go to for a unified view of users' social context.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114619737","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}
Somak R. Das, Silvia Chita, Nina Peterson, B. Shirazi, Medha Bhadkamkar
{"title":"Home automation and security for mobile devices","authors":"Somak R. Das, Silvia Chita, Nina Peterson, B. Shirazi, Medha Bhadkamkar","doi":"10.1109/PERCOMW.2011.5766856","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766856","url":null,"abstract":"As mobile devices continue to grow in popularity and functionality, the demand for advanced ubiquitous mobile applications in our daily lives also increases. This paper deals with the design and implementation of HASec, a Home Automation and Security system for mobile devices, that leverages mobile technology to provide essential security to our homes and associated control operations. In particular, with the help of mobile devices, HASec operates and controls motion detectors and video cameras for remote sensing and surveillance, streams live video and records it for future playback, and finally manages operations on home appliances, such as turning ON/OFF a television or microwave or altering the intensity of lighting around the house. The proposed home security solution hinges on our novel integration of cameras and motion detectors into a mobile application. For instance, when motion is detected, the cameras automatically initiate recording and the iOS device alerts the homeowner of the possible intrusion. HASec has two main components interacting with each other: the iOS application that executes on the mobile device and server-side scripts that run in a cloud. Although HA-Sec is implemented for Apple's iOS devices such as iPhone, iPod Touch, and iPad, it can be easily ported to other mobile platforms. Furthermore, our application is not only limited to smart-phones but also can be used by feature phones through their browsers.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114854449","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":"Deviation detection in automated home care using CommonSens","authors":"Jarle Søberg, V. Goebel, T. Plagemann","doi":"10.1109/PERCOMW.2011.5766972","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766972","url":null,"abstract":"Automated home care uses sensors to report about the well-being of monitored persons. Our complex event processing (CEP) system CommonSens simplifies the work of the application programmers, i.e., those who write the complex queries, by facilitating reuse of queries, sensor instances and environments. We have observed that many automated home care systems focus on detecting alarming behaviour, e.g., falls and heart attacks. However, it is impossible to predict and describe everything that can go wrong. In this paper we define deviation detection in CommonSens, which means that the application programmer only needs to state queries that define correct behaviour. If something happens that does not correspond to the query, this is interpreted as a deviation and a notification or alarm is sent. We believe that this approach further simplifies the work of the application programmer. Deviation detection is implemented in our CommonSens prototype, and we show that our prototype detects deviations as expected by running a set of functionality tests and an experiment based on real-world trace files.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121083798","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}
William Gauvin, Cindy X. Chen, Xinwen Fu, Benyuan Liu
{"title":"Classification of commercial and personal profiles on MySpace","authors":"William Gauvin, Cindy X. Chen, Xinwen Fu, Benyuan Liu","doi":"10.1109/PERCOMW.2011.5766883","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766883","url":null,"abstract":"Online social networks such as MySpace and Facebook have become popular platforms for people to make connections, share information, and interact with each other online. In an online social network, user publishing activities such as sending messages and posting photos, represent online interactions between friends. As more and more businesses use social networks as a means to propagate their “brand name” and distribute information about their product, a good understanding of user publishing characteristics is important for marketing analysis and aids in the ability to provide security measures for online social networks. In this work, we look at the implications of social networks with respect to commercial use. We are particularly interested in classifying commercial and personal profiles to protect the privacy and anonymity of individual users. We present an algorithm that uses online social network publishing relationships, such as publisher age distribution and usage patterns to construct a decision tree based classifier. The result is a C4.5 pruned decision tree which is applied to a Privacy-Preserving Data Publishing (PPDP) service to provide anonymity for online social network users.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116034725","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":"On recovery of lost targets in a cluster-based wireless sensor network","authors":"Anshuman Khare, K. Sivalingam","doi":"10.1109/PERCOMW.2011.5766870","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766870","url":null,"abstract":"This paper considers energy-efficient target tracking using cluster-based wireless sensor networks. Target tracking is vulnerable to temporary loss of the target due to reasons such as node failure, prediction error or sudden change in target trajectory. For a credible and reliable target tracking solution that can be used in mission critical situations, foolproof recovery mechanisms are needed. This paper proposes a recovery mechanism to track lost targets in clustered wireless sensor networks. The recovery mechanism does not rely on a particular prediction approach and can be used with any prediction mechanism. The recovery mechanism is capable of recovering the lost trajectory of the target in several scenarios. The time taken to recover the target has been measured using the Castalia simulation framework of OMNET++.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120958171","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":"ProMWS: Proactive mobile Web service provision using context-awareness","authors":"Chii Chang, Sea Ling, S. Krishnaswamy","doi":"10.1109/PERCOMW.2011.5766973","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766973","url":null,"abstract":"Applying Web service in mobile peer-to-peer service provisioning enhances the interoperability and resolves the heterogeneous challenges of ubiquitous environments. However, due to the nature of mobile peer-to-peer environments, a central repository for assisting service discovery is nonexistent, service discovery process relies on routing techniques, which increase the latency of the service interaction. This paper introduces ProMWS, a context-aware mobile Web service pre-fetching strategy to enable proactive service provisioning based on user preference and context. The proposed strategy predicts the mobile user's query, and cooperates with remote services to pre-fetch the service to the cache of mobile device in advance before the user requests for it.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"24 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120991647","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":"High level context query processing: An experience report","authors":"C. Frà, M. Valla, Nearchos Paspallis","doi":"10.1109/PERCOMW.2011.5766926","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766926","url":null,"abstract":"Pervasive applications want to describe in simple ways which context information they need about users, and be notified when low level context matches specified constraints defined by semantic expressions. In this paper we report our experience while implementing our Context Query Language and using it in a real context framework to support mobile context-aware applications in two European-funded projects. Our experience has shown that both the language design and its implementation are suitable to support complex asynchronous high-level context notification requirements from applications.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116934817","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":"A fine-grain approach for evaluating the quality of context","authors":"Z. Abid, S. Chabridon","doi":"10.1109/PERCOMW.2011.5766930","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766930","url":null,"abstract":"Context-aware applications are becoming commonplace in everyday life thanks to recent advances in mobile devices, sensor capabilities and wireless communication networks. However, making the manipulation of context information efficient is still an important issue. Taking into account the quality of context data becomes a corner stone of an efficient context management. In this paper, we argue for a fine-grain QoC reasoning. We build on existing application examples and implement one of them with the COSMOS framework. Our approach allows for a better control of the behavior of pervasive applications.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126747705","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":"Detecting anomalies to improve classification performance in opportunistic sensor networks","authors":"Hesam Sagha, J. Millán, Ricardo Chavarriaga","doi":"10.1109/PERCOMW.2011.5766860","DOIUrl":"https://doi.org/10.1109/PERCOMW.2011.5766860","url":null,"abstract":"Anomalies and changes in sensor networks which are deployed for activity recognition may abate the classification performance. Detection of anomalies followed by compensatory reaction would ameliorate the performance. This paper introduces a novel approach to detect the faulty or degraded sensors in a multi-sensory environment and a way to compensate it. The approach considers the distance between each classifier output and the fusion output to decide whether a sensor (classifier) is degraded or not. Evaluation is done on two activity datasets with different configuration of sensors and different types of noise. The results show that using the method improves the classification accuracy.","PeriodicalId":369430,"journal":{"name":"2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126275550","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}