— Opportunistic communication allows humans equipped with mobile devices to exchange information via a wireless link whenever they are nearby. This work examines the performance ...
We motivate an approach to evaluating the utility of lifelike interface agents that is based on human eye movements rather than questionnaires. An eye tracker is employed to obtai...
Helmut Prendinger, Chunling Ma, Jin Yingzi, Arturo...
In recent years there has been growing interest in faceted grouping of documents for Interactive Information Retrieval (IIR). It is suggested that faceted grouping can offer a fl...
Users often revisit pages while browsing the Web, yet little is known on the character of these revisits. In this paper we present an analysis of various revisit activities, based ...
Eelco Herder, Harald Weinreich, Hartmut Obendorf, ...
Abstract. Portal Catalogs is a popular means of searching for information on the Web. They provide querying and browsing capabilities on data organized in a hierarchy, on a categor...
Eleni G. Christodoulou, Theodore Dalamagas, Timos ...