We describe an approach to visually analyzing the dynamic behavior of 3D time-dependent flow fields by considering the behavior of the path lines. At selected positions in the 4D space-time domain, we compute a number of local and global properties of path lines describing relevant features of them. The resulting multivariate data set is analyzed by applying state-of-the-art information visuali...

Recent years have seen a growing interest in creating virtual agents to populate the cast of characters for interactive narrative. A key challenge posed by interactive characters for narrative environments is devising expressive dialogue generators. To be effective, character dialogue generators must be able to simultaneously take into account multiple sources of information that bear on dialog...

Interactive computer systems, that is, systems in which users cyclically interact by getting and providing information, have already a widespread and increasing use in all areas of our society. One characteristic of such systems is that the user behavior affects the system behavior and vice-versa. There is strong evidence that much of the user behavior is reactive, that is, the user reacts to t...

Existing community detection methods are mostly based on the analysis of the links among the nodes, ignoring the rich, while the others often ignore the network structure which is the foundation of social media. Aiming at the existed problems, this paper proposed a community detection algorithm based on multi-dimensional weighted network. By introducing User Interactive Frequency, User Interest...

Several views on man-machine interaction are possible to measure usability attributes: (1) the interaction-oriented view, (2) the user-oriented view, (3) the product-oriented view and (4) the formal view. Two different possibilities of measurement within the product-oriented view are introduced in this paper. Different types of user interfaces can be described and differentiated by the concept ...

This paper describes a minimally immersive volumetric interactive system for information visualization. The system, SFA, uses glyph-based volume rendering, enabling more information attributes to be visualized than traditional 2D and surface-based information visualization systems. Two-handed interaction and stereoscopic viewing combine to produce a minimally immersive interactive system that e...

Introduction Today's design of sophisticated graphics workstations may be character ized by the terms 3D-system, user driven, object-oriented user interface and multiple-windows system with the challenge to create high level interfaces for the application programmers. All these properties require a great amount of computing power, especially if we look at 3D-systems with high images quality. On...

Artificial creatures form an increasingly important component of interactive computer games. Examples of such creatures exist which can interact with each other and the game player and learn from their experiences. However, we argue, the design of the underlying architecture and algorithms has to a large extent overlooked knowledge from psychology and cognitive sciences. We explore the integrat...

HTTP server log files provide Web site operators with substantial detail regarding the visitors to their sites. Interest in interpreting this data has spawned an active market for software packages that summarize and analyze this data, providing histograms, pie graphs, and other charts summarizing usage patterns. While useful, these summaries obscure useful information and restrict users to pas...

This study proposes a novel approach to fuzzy importance-performance analysis (FIPA) to modify conventional importance-performance analysis (IPA) for determining critical attributes in e-learning system measurements. There is an abundance of literature pertaining to the e-learning framework, but there is a shortage of literature on how to implement properly the framework in uncertainty with var...