2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)最新文献_第3页

An event-based approach to multi-modal activity modeling and recognition 基于事件的多模态活动建模和识别方法

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466986

M. Pijl, S. Par, Caifeng Shan

{"title":"An event-based approach to multi-modal activity modeling and recognition","authors":"M. Pijl, S. Par, Caifeng Shan","doi":"10.1109/PERCOM.2010.5466986","DOIUrl":"https://doi.org/10.1109/PERCOM.2010.5466986","url":null,"abstract":"The topic of human activity modeling and recognition still provides many challenges, despite receiving considerable attention. These challenges include the large number of sensors often required for accurate activity recognition, and the need for user-specific training samples. In this paper, an approach is presented for recognition of activities of daily living (ADL) using only a single camera and microphone as sensors. Scene analysis techniques are used to classify audio and video events, which are used to model a set of activities using hidden Markov models. Data was obtained through recordings of 8 participants. The events generated by scene analysis algorithms are compared to events obtained through manual annotation. In addition, several model parameter estimation techniques are compared. In a number of experiments, it is shown that if activities are fully observed these models yield a class accuracy of 97% on annotated data, and 94% on scene analysis data. Using a sliding window approach to classify activities in progress yields a class accuracy of 79% on annotated data, and 73% on scene analysis data. It is also shown that a multi-modal approach yields superior results compared to either individual modality on scene analysis data. Finally, it can be concluded the created models perform well even across participants.","PeriodicalId":207774,"journal":{"name":"2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123082428","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: 7

Ad-hoc voice-based group communication 基于语音的群组通信

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466977

Lu Han, Stephen Smaldone, P. Shankar, James Boyce, L. Iftode

{"title":"Ad-hoc voice-based group communication","authors":"Lu Han, Stephen Smaldone, P. Shankar, James Boyce, L. Iftode","doi":"10.1109/PERCOM.2010.5466977","DOIUrl":"https://doi.org/10.1109/PERCOM.2010.5466977","url":null,"abstract":"People waste many hours driving each day. Although unavoidable, this time can be very boring to motorists. Similar to people taking mass transit who often pass the time socializing with those around them, motorists could benefit from social interactions if they were given broader social opportunities. Unfortunately, existing Multiparty Voice Communication (MVC) systems do not scale to large numbers of users and do not provide adequate access controls. We present RoadSpeak, a scalable MVC system that allows motorists to automatically join Voice Chat Groups (VCGs) along popular roadways. RoadSpeak achieves interruption-free communication through the use of voice chat message buffering, flow control and in-order delivery of voice messages to participants. We have implemented a RoadSpeak prototype on Nokia N95 smart phones using 3G cellular networking for voice message transfer. We have also built an MVC simulator to perform large-scale simulations that compare RoadSpeak with existing MVC systems. The results of our evaluation prove the feasibility of RoadSpeak and demonstrate that it performs similarly to a traditional MVC systems while supporting substantially larger groups of users.","PeriodicalId":207774,"journal":{"name":"2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121459007","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

Pervasive maps: Explore and interact with pervasive environments 普适地图:探索普适环境并与之交互

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466973

G. Vanderhulst, K. Luyten, K. Coninx

引用次数: 13

Product-mediated communication through digital object memories in heterogeneous value chains 在异构价值链中通过数字对象记忆的产品中介通信

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466974

P. Stephan, G. Meixner, Holger Koessling, F. Floerchinger, Lisa Ollinger

{"title":"Product-mediated communication through digital object memories in heterogeneous value chains","authors":"P. Stephan, G. Meixner, Holger Koessling, F. Floerchinger, Lisa Ollinger","doi":"10.1109/PERCOM.2010.5466974","DOIUrl":"https://doi.org/10.1109/PERCOM.2010.5466974","url":null,"abstract":"Industrial production and supply chains face an increased demand for mass-customization and tightening regulations for the traceability of goods, leading to higher requirements concerning flexibility, adaptability and transparency of processes. Technologies for the “Internet of Things” such as smart products and semantic representations pave their way into future factories and supply chains to fulfill these challenging market demands. In this paper a backend-independent approach for information exchange in open-loop processes based on so-called digital object memories (DOM) is presented. By storing order-related data via smart labels on the item, relevant life cycle information is attached to the product itself. This way, information handover via several stages of the value chain with potentially different stakeholders including manufacturer, distributor, retailer, and end customer has been realized. To summarize first best-practice experiences regarding memory structure and content, a prototype implementation based on a scenario of processing dietary supplements in an adaptive process is illustrated.","PeriodicalId":207774,"journal":{"name":"2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)","volume":"377 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122047277","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: 41

A comparative study of DECT and WLAN signals for indoor localization DECT和WLAN信号用于室内定位的比较研究

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466970

M. Kranz, Carl Fischer, A. Schmidt

引用次数: 43

Tuning to your position: FM radio based indoor localization with spontaneous recalibration 调谐到您的位置:FM收音机基于室内定位与自发重新校准

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-05-20 DOI: 10.1109/PERCOM.2010.5466981

A. Matic, Andrei Papliatseyeu, V. Osmani, O. Mayora-Ibarra

{"title":"Tuning to your position: FM radio based indoor localization with spontaneous recalibration","authors":"A. Matic, Andrei Papliatseyeu, V. Osmani, O. Mayora-Ibarra","doi":"10.1109/PERCOM.2010.5466981","DOIUrl":"https://doi.org/10.1109/PERCOM.2010.5466981","url":null,"abstract":"Position of mobile users has become highly important information in pervasive computing environments. Indoor localization systems based on Wi-Fi signal strength fingerprinting techniques are widely used in office buildings with existing Wi-Fi infrastructure. Our previous work has proposed a solution based on exploitation of FM signal to deal with environments not covered with Wi-Fi signal or environments with only single Wi-Fi access point. However, a general problem of indoor wireless positioning systems pertains to signal degradation due to the environmental factors affecting signal propagation. Therefore, in order to maintain a desirable level of localization accuracy, it becomes necessary to perform periodic calibration of the system, which is either time consuming or requires dedicated equipment and expert knowledge. In this paper, we present a comparison of FM versus Wi-Fi positioning systems and a combination of both systems, exploiting their strengths for indoors positioning. Finally, we address the problem of recalibration by introducing a novel concept of spontaneous recalibration and demonstrate it using the FM localization system.","PeriodicalId":207774,"journal":{"name":"2010 IEEE International Conference on Pervasive Computing and Communications (PerCom)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115935596","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: 85

PerViz: Painkillers for pervasive application debugging PerViz:普遍应用程序调试的止痛药

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-03-01 DOI: 10.1109/PERCOM.2010.5466975

H. Pham, Justin Mazzola Paluska

引用次数: 3

Interactive streaming of structured data 结构化数据的交互式流

2010 IEEE International Conference on Pervasive Computing and Communications (PerCom) Pub Date : 2010-03-01 DOI: 10.1109/PERCOM.2010.5466996

Justin Mazzola Paluska, H. Pham

引用次数: 4