MOBILEHCI

We are proud to present the proceedings of the 13th International Conference on Human-Computer Interaction with Mobile Devices and Services-colloquially known as 'Mobile HCI'.

Reflecting research conducted both in Universities and Industry, Mobile HCI focuses on next generation, meaningful interaction techniques and services for mobile devices. Research areas include technical, interactional, social and cultural aspects, as well as studies of social life with mobile devices.

Mobile human-computer-interaction is one of the most rapidly growing areas in computing. The proliferation of smartphones, and the resultant expansion of mobile Internet access, underscore that this is a cardinal area of invention and innovation for both consumers and industry. There is a growing desire and a need for meaningful and useful applications, and a call for innovative content selection and presentation techniques and novel interaction models.

The ever-increasing importance of this area for business, for social and for technical innovation is reflected in the growing interest in the Mobile HCI conference. With 276 valid submissions the number of technical papers and notes was at a record high, increasing by over 20% from the previous year, 2010.

This growth has further fueled the longstanding commitment from the research community to continue to improve on the quality of the conference. This year we have made effort to improve the quality of the reviewing process. The papers and notes chairs broadened the group of peer reviewers and added a meta-reviewing step. The Senior Program Committee, over 35 people, met in person---across two locations connected by video and audio connections-to decide on the selection of papers and notes. A rigorous process of discussion and reflection was conducted wherein each paper was addressed and considered for inclusion. We instituted a shepherding process of revise-and-resubmit for papers and notes that showed great promise; all shepherded papers were ultimately accepted. As a result of this process, 63 papers and notes (an acceptance rate of 23%) of the submissions to the conference were selected for presentations in Stockholm at the end of August 2011.

These proceedings contain the accepted papers and notes that resulted from our review process. The research topics herein reflect our ambition to provide cutting edge research that considers the challenges and potential solutions for effective and meaningful interaction with mobile systems and services. Research presented here covers the design, evaluation and application of techniques for all mobile and wearable computing devices and services. Topics include: next generation touch and gesture-based interaction, including more extended vibro - tactile solutions; the design of video-based interaction on-the go; projections and visualizations from small 'pica-projectors'; technical and social issues around mobile data security and privacy; and case studies of relationship management through mobile devices and location-based services. The global penetration and impact of mobile interaction is reflected. Examples range from interaction to social fabric, from research into various alphabets, such as handling Indian text input to phone use among workers in China. The conference also focuses on understanding various contexts where mobile technologies and services are having an impact on everyday recreational life-see for example the design and evaluation of mobile services for hedonic parts of life such as shopping and fashion.

The Mobile HCI conference promises to be a vibrant and fast-paced event. Given the increasing number of selected papers, we have chosen to include more content-17 papers and notes sessions-in the program. We have thus reduced the time for each presentation, allowing the audience to enjoy a richer variety of research and demonstrations and encouraging broader debate. The audience will be diverse. The conference has traditionally provided a meeting ground for researchers from both industry and academia-this is also a hallmark of MobileHCI2011 in Stockholm. This combination is visible in the selection of technical contributions within these proceedings, with authors and projects hailing from industry research organizations and from universities from around the globe.