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Project Aura: Toward Distraction-Free Pervasive Computing
- IEEE Pervasive Computing
, 2002
"... this article is directly due to Satya and his students, and he coauthored earlier drafts of this article. We also thank the students and colleagues in Project Aura---in particular, Joshua Anhalt, Rajesh Balan, Jason Flinn, Glenn Judd, David Kogan, Matthew Kornyak, Takahide Matsutsuka, SoYoung Pa ..."
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Cited by 242 (16 self)
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this article is directly due to Satya and his students, and he coauthored earlier drafts of this article. We also thank the students and colleagues in Project Aura---in particular, Joshua Anhalt, Rajesh Balan, Jason Flinn, Glenn Judd, David Kogan, Matthew Kornyak, Takahide Matsutsuka, SoYoung Park, Vahe Poladian, Raj Reddy, Bradley Schmerl, Shafeeq Sinnamohideen, and Joo Sousa. DARPA contracts N66001-99-28918 and F30602-00-2-0616 have sponsored Project Aura. Opinions, findings, and conclusions or recommendations expressed here are those of the authors and do not necessarily reflect the views of DARPA
An architecture for privacy-sensitive ubiquitous computing
- In MobiSYS ’04: Proceedings of the 2nd international conference on mobile systems, applications, and services
, 2004
"... Privacy is the most often-cited criticism of ubiquitous computing, and may be the greatest barrier to its long-term success. However, developers currently have little support in designing software architectures and in creating interactions that are effective in helping end-users manage their privacy ..."
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Cited by 231 (16 self)
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Privacy is the most often-cited criticism of ubiquitous computing, and may be the greatest barrier to its long-term success. However, developers currently have little support in designing software architectures and in creating interactions that are effective in helping end-users manage their privacy. To address this problem, we present Confab, a toolkit for facilitating the development of privacy-sensitive ubiquitous computing applications. The requirements for Confab were gathered through an analysis of privacy needs for both end-users and application developers. Confab provides basic support for building ubiquitous computing applications, providing a framework as well as several customizable privacy mechanisms. Confab also comes with extensions for managing location privacy. Combined, these features allow application developers and end-users to support a spectrum of trust levels and privacy needs.
A Policy Language for a Pervasive Computing Environment
- In IEEE 4th International Workshop on Policies for Distributed Systems and Networks
, 2003
"... In this paper we describe a policy language designed for pervasive computing applications that is based on deontic concepts and grounded in a semantic language. The pervasive computing environments under consideration are those in which people and devices are mobile and use various wireless networki ..."
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Cited by 211 (19 self)
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In this paper we describe a policy language designed for pervasive computing applications that is based on deontic concepts and grounded in a semantic language. The pervasive computing environments under consideration are those in which people and devices are mobile and use various wireless networking technologies to discover and access services and devices in their vicinity. Such pervasive environments lend themselves to policy-based security due to their extremely dynamic nature. Using policies allows the security functionality to be modified without changing the implementation of the entities involved. However, along with being extremely dynamic these environments also tend to span several domains and be made up of entities of varied capabilities. A policy language for environments of this sort needs to be very expressive but lightweight and easily extensible. We demonstrate the feasibility of our policy language in pervasive environments through a prototype used as part of a secure pervasive system.
Toward an Affect-Sensitive Multimodal Human-Computer Interaction
- Proceedings of the IEEE
, 2003
"... The ability to recognize affective states of a person... This paper argues that next-generation human-computer interaction (HCI) designs need to include the essence of emotional intelligence -- the ability to recognize a user's affective states -- in order to become more human-like, more effect ..."
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Cited by 189 (30 self)
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The ability to recognize affective states of a person... This paper argues that next-generation human-computer interaction (HCI) designs need to include the essence of emotional intelligence -- the ability to recognize a user's affective states -- in order to become more human-like, more effective, and more efficient. Affective arousal modulates all nonverbal communicative cues (facial expressions, body movements, and vocal and physiological reactions). In a face-to-face interaction, humans detect and interpret those interactive signals of their communicator with little or no effort. Yet design and development of an automated system that accomplishes these tasks is rather difficult. This paper surveys the past work in solving these problems by a computer and provides a set of recommendations for developing the first part of an intelligent multimodal HCI -- an automatic personalized analyzer of a user's nonverbal affective feedback.
Internet Suspend/Resume
, 2002
"... We identify a new capability for mobile computing that mimics the opening and closing of a laptop, but avoids physical transport of hardware. Through rapid and easy personalization and depersonalization of anonymous hardware, a user is able to suspend work at one machine and to resume it at another. ..."
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Cited by 170 (33 self)
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We identify a new capability for mobile computing that mimics the opening and closing of a laptop, but avoids physical transport of hardware. Through rapid and easy personalization and depersonalization of anonymous hardware, a user is able to suspend work at one machine and to resume it at another. Our key insight is that this capability can be achieved by layering virtual machine technology on a distributed file system. We report on an initial implementation and describe our plans for improving efficiency, portability, and security.
Pervasive Computing: A Paradigm for the 21st Century
- COMPUTER
, 2003
"... Pervasive computing promises to make life simpler via digital environments that sense, adapt, and respond to human needs. Yet we still view computers as machines that run programs in a virtual environment. Pervasive computing presumes a different vision. A device can be a portal into an application- ..."
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Cited by 137 (1 self)
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Pervasive computing promises to make life simpler via digital environments that sense, adapt, and respond to human needs. Yet we still view computers as machines that run programs in a virtual environment. Pervasive computing presumes a different vision. A device can be a portal into an application-data space, not just a repository of custom software a user must manage. An application is a means by which a user performs a task, not software written to exploit a device's capabilities. And a computing environment is an information-enhanced physical space, not a virtual environment that exists to store and run software. Pervasive computing is close to technical and economic viability.
CoOL: A Context Ontology Language to enable Contextual Interoperability
- LNCS 2893: Proceedings of 4th IFIP WG 6.1 International Conference on Distributed Applications and Interoperable Systems (DAIS2003). Volume 2893 of Lecture Notes in Computer Science (LNCS)., Paris/France
, 2003
"... This paper describes a context modelling approach using ontologies as a formal fundament. We introduce our Aspect-Scale-Context (ASC) model and show how it is related to some other models. A Context Ontology Language (CoOL) is derived from the model, which may be used to enable context-awareness and ..."
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Cited by 106 (5 self)
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This paper describes a context modelling approach using ontologies as a formal fundament. We introduce our Aspect-Scale-Context (ASC) model and show how it is related to some other models. A Context Ontology Language (CoOL) is derived from the model, which may be used to enable context-awareness and contextual interoperability during service discovery and execution in a proposed distributed system architecture. A core component of this architecture is a reasoner which infers conclusions about the context based on an ontology built with CoOL.
Trafficview: Traffic data dissemination using car-to-car communication
- ACM SIGMOBILE Mobile Computing and Communications Review
, 2004
"... Vehicles are part of people’s life in modern society, into which more and more hightech devices are integrated, and a common platform for inter-vehicle communication is necessary to realize an intelligent transportation system supporting safe driving, dynamic route scheduling, emergency message diss ..."
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Cited by 92 (9 self)
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Vehicles are part of people’s life in modern society, into which more and more hightech devices are integrated, and a common platform for inter-vehicle communication is necessary to realize an intelligent transportation system supporting safe driving, dynamic route scheduling, emergency message dissemination, and traffic condition monitoring. TrafficView, which is a part of the e-Road project, defines a framework to disseminate and gather information about the vehicles on the road. With such a system, vehicle’s driver will be provided with road traffic information that helps driving in situations as foggy weather, or finding an optimal route in a trip several miles long. This paper describes the design and implementation of TrafficView and the different mechanisms used in the system. I.
The evolution of Coda
, 2002
"... Failure-resilient, scalable, and secure read-write access to shared information by mobile and static users over wireless and wired networks is a fundamental computing challenge. In this article, we describe how the Coda file system has evolved to meet this challenge through the development of mechan ..."
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Cited by 85 (20 self)
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Failure-resilient, scalable, and secure read-write access to shared information by mobile and static users over wireless and wired networks is a fundamental computing challenge. In this article, we describe how the Coda file system has evolved to meet this challenge through the development of mechanisms for server replication, disconnected operation, adaptive use of weak connectivity, isolation-only transactions, translucent caching, and opportunistic exploitation of hardware surrogates. For each mechanism, the article explains how usage experience with it led to the insights for another mechanism. It also shows how Coda has been influenced by the work of other researchers and by industry. The article closes with a discussion of the technical and nontechnical lessons that can be learned from the evolution of the system.
Self-tuned remote execution for pervasive computing
- In Hot Topics in Operating Systems(HotOS-VIII
, 2001
"... Pervasive computing creates environments saturated with computing and communication capability, yet gracefully integrated with human users. Remote execution has a natural role to play in such environments, since it lets applications simultaneously leverage the mobility of small devices and the great ..."
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Cited by 80 (15 self)
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Pervasive computing creates environments saturated with computing and communication capability, yet gracefully integrated with human users. Remote execution has a natural role to play in such environments, since it lets applications simultaneously leverage the mobility of small devices and the greater resources of large devices. In this paper, we describe Spectra, a remote execution system designed for pervasive environments. Spectra monitors resources such as battery energy and file cache state which are especially important for mobile clients. It also dynamically balances energy use and quality goals with traditional performance concerns to decide where to locate functionality. Finally, Spectra is selftuning—it does not require applications to explicitly specify intended resource usage. Instead, it monitors application behavior, learns functions predicting their resource usage, and uses the information to anticipate future behavior. 1
