Teun Lucassen

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The use of Wikipedia as an information source is becoming increasingly popular. Several studies have shown that its information quality is high. Normally, when considering information trust, the source of information is an important factor. However, because of the open-source nature of Wikipedia articles, their sources remain mostly unknown. This means that(More)
As the use of collaborative online encyclopedias such as Wikipedia grows, so does the need for research on how users evaluate its credibility. In this paper we compare three experimental approaches to study trust in Wikipedia, namely think aloud, eye-tracking, and online questionnaires. The advantages and disadvantages of each method are discussed. We(More)
This paper describes a research regarding emotions of musical instruments. The goal is to find out whether it is possible to alter a communicated emotion to a listener by using various musical instruments. These instruments are the piano, marimba, alt sax and cello. After performing an experiment clear differences are visible, especially on the emotions joy(More)
One of the most awkward parts of communicating with an embodied conversational agent (ECA) is still the part when the ECA listens to the user. We analyze multi party meetings from the AMI corpus to find out how gestures can contribute to the natural behavior of a listening agent. Head gestures are the main focus. Hand gestures do not seem to occur enough to(More)