As large displays become more affordable, researchers are investigating their effects on
productivity, and techniques for making the large display user experience more effective …

We present data from detailed observations of CityWall, a large multi-touch display installed
in a central location in Helsinki, Finland. During eight days of installation, 1199 persons …

DiamondSpin is a toolkit for the efficient prototy** of and experimentation with multi-
person, concurrent interfaces for interactive shared displays. In this paper, we identify the …

Interactive tabletops have been previously proposed and studied in the domain of co-
located group applications. However, little fundamental research has been done to explore …

This paper explores computer security in pervasive computing with focus on user
authentication. We present the concept of Proximity-Based User Authentication, as a …

Multitouch wall-sized displays afford new forms of collaboration: They can be used up close
by several users simultaneously, offer high resolution, and provide sufficient space for …

In designing for engagement at a public multi-touch installation, we identified supporting
multiple users and allowing for gradual discovery as challenges. In this paper, we present …

Most interactive public displays currently rely on flat screens. This form factor impacts how
users (1) notice the public display (2) develop motivation and (3)(socially) interact with the …

Due to its distinct affordances, the iPad might foster alternative forms of collaborative
creativity when compared with pens on paper. In this article I examine how a collaborative …

Most large public displays have been used for providing information to passers-by with the
primary purpose of acting as one-way information channels to individual users. We have …