Abstract. In this paper we describe a new method and user interface for interactive positioning of a mobile device. The key element of this method is a questionanswer style dialogu...
Mobile phones have become a ubiquitous technology and for many people a daily companion, primarily used for communication and information access. The fact that the phone is accomp...
Previous research has sought to utilize everyday messaging metaphors, such as the notice board, in location-based messaging systems. Unfortunately, many of the restrictions associ...
Matti Rantanen, Antti Oulasvirta, Jan Blom, Sauli ...
In this paper we describe a user-centered approach to designing and evaluating a socially interactive mobile game for the elderly. The objective of the game is to encourage the el...
We present a set of graphical user interface elements, called widgets, for 2-dimensional visual codes. The proposed widgets are suitable for printing on paper as well as showing o...