Hans W. Gellersen – författare

WelcometotheproceedingsofPervasive2005,The3rdInternationalConference on Pervasive Computing. We were honored to serve as chairs in this conference series, which was founded in 2002 and is now emerging as one of the most respected venues for publication of research on pervasive and ubiquitous c- puting. The conference is attracting research submissions of very high quality from all over the world, and from researchers representing a variety of disciplines and perspectives. We thank everybody who submitted their papers to Pervasive, demonstrating the extensive work going on in this area; and the Program C- mittee and our external reviewers who spent countless hours providing feedback and guidance in order to create the ?nal program. This year we received 130 submissions. By the end of the review process, we had 566 reviews on ?le, as well as long email discussion threads for each paper. In an initial phase we had each paper reviewed by two members of the Program Committee and two external reviewers. In a second phase, each paper wasdiscussedbyitsfourreviewerstoreachconsensusastoitstechnicalmerit. At the end of this phase, the top-rated papers as well as those that were found to be most controversial were selected for discussion at the PC meeting and reviewed by an additional PC member. The result being that each paper discussed in the PC meeting had 5 reviews and was read by three people who participated in the meeting, leading to a very informed and lively discussion.

WelcometotheproceedingsofPervasive2005,The3rdInternationalConference on Pervasive Computing. We were honored to serve as chairs in this conference series, which was founded in 2002 and is now emerging as one of the most respected venues for publication of research on pervasive and ubiquitous c- puting. The conference is attracting research submissions of very high quality from all over the world, and from researchers representing a variety of disciplines and perspectives. We thank everybody who submitted their papers to Pervasive, demonstrating the extensive work going on in this area; and the Program C- mittee and our external reviewers who spent countless hours providing feedback and guidance in order to create the ?nal program. This year we received 130 submissions. By the end of the review process, we had 566 reviews on ?le, as well as long email discussion threads for each paper. In an initial phase we had each paper reviewed by two members of the Program Committee and two external reviewers. In a second phase, each paper wasdiscussedbyitsfourreviewerstoreachconsensusastoitstechnicalmerit. At the end of this phase, the top-rated papers as well as those that were found to be most controversial were selected for discussion at the PC meeting and reviewed by an additional PC member. The result being that each paper discussed in the PC meeting had 5 reviews and was read by three people who participated in the meeting, leading to a very informed and lively discussion.

The papers collected here are those selected for presentation at the Second International Symposium on Handheld and Ubiquitous Computing 2000 (HUC 2000) held in Bristol, UK in September 2000. The symposium was the second in a series of symposia which explores new research in the area of emerging mobile, personal, and handheld technologies. The first event, HUC’99, was held in Karlsruhe (Germany), organised by the Telecooperation Office (TecO) of the University of Karlsruhe in close collaboration with the Center for Arts and Media Technology (ZKM). This previous event, the first of its kind in the world, attracted a large number of paper submissions, was attended by over 200 international delegates, and demonstrated the growing international interest in the area with contributions from the United States, Japan and Europe. The 18 papers collected here were chosen from 70 submissions to HUC 2000, and represent a valuable resource for those wishing to understand the themes being pursued in this vibrant and exciting area of technology. The papers range from work on intelligent environment and devices, user experience, and interface design, to research in context aware systems, wearable computing, and location-based services. Together, the papers represent a snapshot of the state of the art in research in handheld and ubiquitous computing. The symposium also attracted a large number of short paper submissions, and these are available in the Springer journal Personal Technologies volume 4, number 4, which was published in tandem with these proceedings.

The papers collected here are those selected for presentation at the Second International Symposium on Handheld and Ubiquitous Computing 2000 (HUC 2000) held in Bristol, UK in September 2000. The symposium was the second in a series of symposia which explores new research in the area of emerging mobile, personal, and handheld technologies. The first event, HUC’99, was held in Karlsruhe (Germany), organised by the Telecooperation Office (TecO) of the University of Karlsruhe in close collaboration with the Center for Arts and Media Technology (ZKM). This previous event, the first of its kind in the world, attracted a large number of paper submissions, was attended by over 200 international delegates, and demonstrated the growing international interest in the area with contributions from the United States, Japan and Europe. The 18 papers collected here were chosen from 70 submissions to HUC 2000, and represent a valuable resource for those wishing to understand the themes being pursued in this vibrant and exciting area of technology. The papers range from work on intelligent environment and devices, user experience, and interface design, to research in context aware systems, wearable computing, and location-based services. Together, the papers represent a snapshot of the state of the art in research in handheld and ubiquitous computing. The symposium also attracted a large number of short paper submissions, and these are available in the Springer journal Personal Technologies volume 4, number 4, which was published in tandem with these proceedings.

Truly personal handheld and wearable technologies should be small and unobtrusive and allow access to information and computing most of the time and in most circumstance. Complimentary, environment-based technologies make artifacts of our surrounding world computationally accessible and facilitate use of everyday environments as a ubiquitous computing interface. The International Symposium on Handheld and Ubiquitous Computing, held for the first time in September 1999, was initiated to investigate links and synergies in these developments, and to relate advances in personal technologies to those in environment-based technologies. The HUC 99 Symposium was organised by the University of Karlsruhe, in particular by the Telecooperation Office (TecO) of the Institute for Telematics, in close collaboration with ZKM Karlsruhe, which generously hosted the event in its truly inspiring Center for Arts and Media Technology. The symposium was supported by the Association of Computing Machinery (ACM) and the German Computer Society (Gesellschaft f r Informatik, GI) and held in cooperation with a number of special interest groups of these scientific societies. HUC 99 attracted a large number of paper submissions, from which the international programme committee selected 23 high-quality contributions for presentation at the symposium and for inclusion in these proceedings. In addition, posters were solicited to provide an outlet for novel ideas and late-breaking results; selected posters are also included with these proceedings. The technical programme was further complemented by four invited keynote addresses, and two panel sessions.