Field trials of experimental systems in the wild have developed into a standard method
within HCI-testing new systems with groups of users in relatively unconstrained settings …

Current models of how people use personal informatics systems are largely based in
behavior change goals. They do not adequately characterize the integration of self-tracking …

A sociotechnical investigation of ubiquitous computing as a research enterprise and as a
lived reality. Ubiquitous computing (or ubicomp) is the label for a" third wave" of computing …

Overweight and obesity are a global epidemic, with over one billion overweight adults
worldwide (300+ million of whom are obese). Obesity is linked to several serious health …

There have been many location sharing systems developed over the past two decades, and
only recently have they started to be adopted by consumers. In this paper, we present the …

Advances in location-enhanced technology are making it easier for us to be located by
others. These new technologies present a difficult privacy tradeoff, as disclosing one's …

Robots have entered our domestic lives, but yet, little is known about their impact on the
home. This paper takes steps towards addressing this omission, by reporting results from an …

Location systems have long been identified as an important component of emerging mobile
applications. Most research on location systems has focused on precise location in indoor …

Recognition of everyday physical activities is difficult due to the challenges of building
informative, yet unobtrusive sensors. The most widely deployed and used mobile computing …

This paper examines the positioning accuracy of a GSM beacon-based location system in a
metropolitan environment. We explore five factors effecting positioning accuracy: location …