Mobile devices are used more and more in everyday life. They are our cameras, wallets, and
keys. Basically, they embed most of our private information in our pocket. For this and other …

Most of today's public displays only show predefined contents that passers-by are not able to
change. We argue that interactive public displays would benefit from immediately usable …

This study is the first attempt to investigate altruistic use of interactive public displays in
natural usage settings as a crowdsourcing mechanism. We test a non-paid crowdsourcing …

In this paper we present Game of Words, a crowdsourcing game for public displays that
allows the creation of a keyword dictionary to describe locations. It relies on crowdsourcing …

Although advances in technology now enable people to communicate 'anytime, anyplace', it
is not clear how citizens can be motivated to actually do so. This paper evaluates the impact …

As civic participation is declining in western societies, emerging technologies offer novel
opportunities for outreach activities. This chapter presents a series of incremental studies of …

Narrowcasting refers to the targeted segmentation of media dissemination, and has been
proposed as a counterpart to broadcasting. We present an explorative study that evaluates …

In this paper we present a series of three field studies on the integration of multiple
modalities (touch and mid-air gestures) in a public display. We analyze our field studies …

Interactive public displays are versatile two-way interfaces between the digital world and
passersby. They can convey information and harvest purposeful data from their users …

An important step in develo** multipurpose public displays is understanding application
discoverability: the effort required to locate or" discover" an application amongst others …