The ability to simulate lifelike interactive characters has many applications in the gaming industry. Human faces may act as visual interfaces that help users feel at home when interacting with a computer because they are accepted as the most expressive means for communicating and recognizing emotions. Thus, a lifelike human face can enhance interactive applications by providing straightforward...

A large number of software architectures for interactive have been described in literature, like the Seeheim, PAC-Amodeus, and Model-View-Controller architectures. Most of these architectures are based on the traditional view of interactive software, namely the view that an interactive software system can be separated in an application part and a user interface part. The application part contai...

In many real world applications, users might not know the queries to send to a database in order to retrieve data in the user-interested areas. Users can apply a trial and error method to discover the queries. However, as the data set is usually quite large, the discovery of queries will take a long time and the whole process is labor-intensive. We want to build a discovery-oriented, interactiv...

Interactive exercising is one of the major ingredients of technology-enhanced learning. It reaches its full potential only, when appropriate feedback is given to the learner. This paper describes a principled approach for representing and processing interactive exercises in ActiveMath. This approach relies (1) on a modular architecture of the exercise player, (2) on a separation of different ty...

Interactive exercising is one of the major ingredients of technology-enhanced learning. It reaches its full potential only, when appropriate feedback is given to the learner. This paper describes a principled approach for representing and processing interactive exercises in ActiveMath. This approach relies (1) on a modular architecture of the exercise player, (2) on a separation of different ty...

We present results of a study comparing two different interactive information retrieval systems: one which supports positive relevance feedback as a termsuggestion device; the other which supports both positive and negative relevance feedback in this same context. The purpose of the study was to investigate the effectiveness and usability of a specific implementation of negative relevance feedb...

Currently, most of multi-touch surface tables do not provide any tactile feedback to the users. In this paper, a multi-touch surface table with tactile feedback is proposed. The proposed surface table provides the users with the ability of multi-point tactile feedback with variant patterns and levels of vibrations. A webcam is used to capture all finger-touch images as system inputs using compu...