Multi-point interaction tasks involve the manipulation of several mutually-dependent control points in a visual workspace ? for example, adjusting a selection rectangle in a drawi...
This paper describes the results of three studies investigating an embodied agent that supports its interaction with the user by gazing at corresponding objects within its close e...
Johann Schrammel, Arjan Geven, Reinhard Sefelin, M...
Spyware is an increasing problem. Interestingly, many programs carrying spyware honestly disclose the activities of the software, but users install the software anyway. We report ...
Nathaniel Good, Jens Grossklags, Deirdre K. Mullig...
Tagclouds are visual presentations of a set of words, typically a set of "tags" selected by some rationale, in which attributes of the text such as size, weight, or colo...
A. W. Rivadeneira, Daniel M. Gruen, Michael J. Mul...
This paper presents results of an extensive long-term clickstream study of Web browser usage. Focusing on character and challenges of page revisitation, previous findings from sev...
Hartmut Obendorf, Harald Weinreich, Eelco Herder, ...
Why do people tag? Users have mostly avoided annotating media such as photos ? both in desktop and mobile environments ? despite the many potential uses for annotations, including...
Our lives are full of memorable and important moments, as well as important items of information. The last few years have seen the proliferation of digital devices intended to sup...
We report on a field study of the multitasking behavior of computer users focused on the suspension and resumption of tasks. Data was collected with a tool that logged users'...
Selections and actions in GUI's are often separated ? i.e. an action or command typically follows a selection. This sequence imposes a lower bound on the interaction time tha...
If applications were able to detect a user's expertise, then software could automatically adapt to better match expertise. Detecting expertise is difficult because a user...