Results 1 - 10
of
81
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 ..."
Abstract
-
Cited by 231 (16 self)
- Add to MetaCart
(Show Context)
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.
Place lab: Device positioning using radio beacons in the wild
- In Proceedings of the Third International Conference on Pervasive Computing
, 2005
"... Abstract. Location awareness is an important capability for mobile computing. Yet inexpensive, pervasive positioning—a requirement for wide-scale adoption of location-aware computing—has been elusive. We demonstrate a radio beacon-based approach to location, called Place Lab, that can overcome the l ..."
Abstract
-
Cited by 196 (15 self)
- Add to MetaCart
(Show Context)
Abstract. Location awareness is an important capability for mobile computing. Yet inexpensive, pervasive positioning—a requirement for wide-scale adoption of location-aware computing—has been elusive. We demonstrate a radio beacon-based approach to location, called Place Lab, that can overcome the lack of ubiquity and high-cost found in existing location sensing approaches. Using Place Lab, commodity laptops, PDAs and cell phones estimate their position by listening for the cell IDs of fixed radio beacons, such as wireless access points, and referencing the beacons ’ positions in a cached database. We present experimental results showing that 802.11 and GSM beacons are sufficiently pervasive in the greater Seattle area to achieve 20-40 meter median
iCAP: interactive prototyping of context-aware applications
- Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics
"... Abstract. Although numerous context-aware applications have been developed and there have been technological advances for acquiring contextual information, it is still difficult to develop and prototype interesting context-aware applications. This is largely due to the lack of programming support av ..."
Abstract
-
Cited by 46 (2 self)
- Add to MetaCart
(Show Context)
Abstract. Although numerous context-aware applications have been developed and there have been technological advances for acquiring contextual information, it is still difficult to develop and prototype interesting context-aware applications. This is largely due to the lack of programming support available to both programmers and end-users. This lack of support closes off the contextaware application design space to a larger group of users. We present iCAP, a system that allows end-users to visually design a wide variety of context-aware applications, including those based on if-then rules, temporal and spatial relationships and environment personalization. iCAP allows users to quickly prototype and test their applications without writing any code. We describe the study we conducted to understand end-users mental models of context-aware applications, how this impacted the design of our system and several applications that demonstrate iCAP s richness and ease of use. We also describe a user study performed with 20 end-users, who were able to use iCAP to specify every application that they envisioned, illustrating iCAP s expressiveness and usability. 1
Sensing and Visualizing Spatial Relations of Mobile Devices
, 2005
"... Location information can be used to enhance interaction with mobile devices. While many location systems require instrumentation of the environment, we present a system that allows devices to measure their spatial relations in a true peerto -peer fashion. The system is based on custom sensor hardwar ..."
Abstract
-
Cited by 38 (10 self)
- Add to MetaCart
Location information can be used to enhance interaction with mobile devices. While many location systems require instrumentation of the environment, we present a system that allows devices to measure their spatial relations in a true peerto -peer fashion. The system is based on custom sensor hardware implemented as USB dongle, and computes spatial relations in real-time. In extension of this system we propose a set of spatialized widgets for incorporation of spatial relations in the user interface. The use of these widgets is illustrated in a number of applications, showing how spatial relations can be employed to support and streamline interaction with mobile devices.
The Proximity Toolkit: Prototyping Proxemic Interactions in Ubiquitous Computing Ecologies
"... orientation, distance, pointing rays; Right: visualizing these relationships in the Proximity Toolkit visual monitoring tool. People naturally understand and use proxemic relationships in everyday situations. However, only few ubiquitous computing (ubicomp) systems interpret such proxemic relationsh ..."
Abstract
-
Cited by 35 (10 self)
- Add to MetaCart
(Show Context)
orientation, distance, pointing rays; Right: visualizing these relationships in the Proximity Toolkit visual monitoring tool. People naturally understand and use proxemic relationships in everyday situations. However, only few ubiquitous computing (ubicomp) systems interpret such proxemic relationships to mediate interaction (proxemic interaction). A technical problem is that developers find it challenging and tedious to access proxemic information from sensors. Our Proximity Toolkit solves this problem. It simplifies the exploration of interaction techniques by supplying finegrained proxemic information between people, portable devices, large interactive surfaces, and other non-digital objects in a room-sized environment. The toolkit offers three key features. 1) It facilitates rapid prototyping of proxemic-aware systems by supplying developers with the
Momento: support for situated ubicomp experimentation
- Proc. CHI 2007
, 2007
"... We present the iterative design of Momento, a tool that provides integrated support for situated evaluation of ubiquitous computing applications. We derived requirements for Momento from a user-centered design process that included interviews, observations and field studies of early versions of the ..."
Abstract
-
Cited by 34 (2 self)
- Add to MetaCart
(Show Context)
We present the iterative design of Momento, a tool that provides integrated support for situated evaluation of ubiquitous computing applications. We derived requirements for Momento from a user-centered design process that included interviews, observations and field studies of early versions of the tool. Motivated by our findings, Momento supports remote testing of ubicomp applications, helps with participant adoption and retention by minimizing the need for new hardware, and supports mid-to-long term studies to address infrequently occurring data. Also, Momento can gather log data, experience sampling, diary, and other qualitative data.
Keeping ubiquitous computing to yourself: a practical model for user control of privacy
- International Journal of Human-Computer Studies
, 2005
"... As with all the major advances in information and communication technology, ubiquitous computing (ubicomp) introduces new risks to individual privacy. Our analysis of privacy protection in ubicomp has identified four layers through which users must navigate: the regulatory regime they are currently ..."
Abstract
-
Cited by 33 (5 self)
- Add to MetaCart
As with all the major advances in information and communication technology, ubiquitous computing (ubicomp) introduces new risks to individual privacy. Our analysis of privacy protection in ubicomp has identified four layers through which users must navigate: the regulatory regime they are currently in, the type of ubicomp service required, the type of data being disclosed, and their personal privacy policy. We illustrate and compare the protection afforded by regulation and by some major models for user control of privacy. We identify the shortcomings of each and propose a model which allows user control of privacy levels in a ubicomp environment. Our model balances the user’s privacy preferences against the applicable privacy regulations and incorporates five types of user controlled “noise ” to protect location privacy by introducing ambiguities. We also incorporate an economics-based approach to assist users in balancing the trade-offs between giving up privacy and receiving ubicomp services. We conclude with a scenario and heuristic evaluation which suggests that regulation can have both positive and negative influences on privacy interfaces in ubicomp and that social translucence is an important heuristic for ubicomp privacy interface functionality.
Rapid authoring of mediascapes
- Proc. UbiComp
, 2004
"... Ubiquitous computing promises to enable new classes of application. In this paper, we present research intended to accelerate the exploration of the space of possible application values by enabling domain specialists to develop, deploy and evaluate experimental applications, even if they do not have ..."
Abstract
-
Cited by 31 (3 self)
- Add to MetaCart
(Show Context)
Ubiquitous computing promises to enable new classes of application. In this paper, we present research intended to accelerate the exploration of the space of possible application values by enabling domain specialists to develop, deploy and evaluate experimental applications, even if they do not have programming skills. We present a framework for the rapid authoring of mediascapes, a commercially important class of media-oriented, context-sensitive, mobile applications. A case study is described in which two artists without prior experience of ubiquitous computing successfully and quickly deployed experimental mediascapes in an urban square. A discussion of their experience suggests future work aimed at closing the gap between application emulation and reality.
Prototyping and sampling experience to evaluate ubiquitous computing privacy in the real world
- Proceedings of the SIGCHI conference on Human Factors in
, 2006
"... We developed an inquiry technique, which we called “paratype,” based on experience prototyping and eventcontingent experience sampling, to survey people in reallife situations about ubiquitous computing (ubicomp) technology. We used this tool to probe the opinions of the conversation partners of use ..."
Abstract
-
Cited by 28 (2 self)
- Add to MetaCart
(Show Context)
We developed an inquiry technique, which we called “paratype,” based on experience prototyping and eventcontingent experience sampling, to survey people in reallife situations about ubiquitous computing (ubicomp) technology. We used this tool to probe the opinions of the conversation partners of users of the Personal Audio Loop, a memory aid that can have a strong impact on their privacy. We present the findings of this study and their implications, specifically the need to broaden public awareness of ubicomp applications and the unfitness of traditional data protection guidelines for tackling the privacy issues of many ubicomp applications. We also point out benefits and methodological issues of paratypes and discuss why they are particularly fit for studying certain classes of mobile and ubicomp applications.
iStuff Mobile: Rapidly Prototyping New Mobile Phone Interfaces for Ubiquitous Computing
"... iStuff Mobile is the first rapid prototyping framework that helps explore new sensor-based interfaces with existing mobile phones. It focuses on sensor-enhanced physical interfaces for ubiquitous computing scenarios. The framework includes sensor network platforms, mobile phone software, and a prove ..."
Abstract
-
Cited by 20 (1 self)
- Add to MetaCart
(Show Context)
iStuff Mobile is the first rapid prototyping framework that helps explore new sensor-based interfaces with existing mobile phones. It focuses on sensor-enhanced physical interfaces for ubiquitous computing scenarios. The framework includes sensor network platforms, mobile phone software, and a proven rapid prototyping framework. Interaction designers can use iStuff Mobile to quickly create and test functional prototypes of novel interfaces without making internal hardware or software modifications to the handset. A visual programming paradigm provides a low threshold for prototyping activities: the system is not difficult to learn. At the same time, the range of examples built using the toolkit demonstrates a high ceiling for prototyping activities: the toolkit places few limits on prototype complexity. A user study shows that the visual programming metaphor enables prototypes to be built faster and encourages more iterations than a previous approach.
