The virtual class 15] construct was rst introduced in the language Beta to provide added expressiveness when used with inheritance. Unfortunately, the virtual class construct in Beta is not statically type-safe. In this paper we show how a generalization of the semantics of object-oriented languages with a MyType construct leads to a variant of virtual classes which needs no run-time checks. Th...

The SVM (Smart Virtual Machine) is a stack based platform independent virtual machine solution, loaded on smart devices, which allows dynamic application programs to be downloaded and run platform independently. The SIL (Smart Intermediate Language) has been designed as a standard model of virtual machine codes for ordinary smart phones and embedded systems. It is a set of stack based commands ...

The use of virtual characters becomes invariably common in computer games and other applications. So-called “bots” (computer-controlled virtual characters), may explain virtual settings in a natural way. We describe an example scenario in the online world Second Life [1] in order to explain to content creators how to create bots and script their behavior using the well established authoring lan...

This paper discusses language understanding in the Maryland Virtual Patient environment. Language understanding is just one of many cognitive functions of the virtual patients in MVP, others including decision making about healthcare and lifestyle, and the experiencing and remembering of interoceptive events.

The utilization of three-dimensional (3-D) graphical design and scientific visualization of the soil landscape continuum is still in its infancy. The objective of this study was to investigate the use of Virtual Reality Modeling Language (VRML) to create virtual 3-D soil landscape models representing natural soil landscape components. Virtual Reality Modeling Language is an object-oriented, 3-D...

Language alignment is something that happens automatically in dialogues between human speakers. The ability to align is expected to increase the believability of virtual dialogue agents. In this paper we extend the notion of alignment to affective language use, describing a model for dynamically adapting the linguistic style of a virtual agent to the level of politeness and formality detected i...

The applications of 3D-virtual environments and Voice User Interface (VUI) on personal computers have received significant attention in recent years. Since speech is the most natural way of communication, incorporating VUI into virtual environments can greatly enhance user interaction and immersiveness. Although there have been many researches addressing the issue of integrating VUI and 3D-virt...

We present the Scenario Markup Language (SML), a practical language for authoring realistic traffic situations. This effort is part of a novel framework for conducting controlled driving behavior studies based on multiuser networked 3D virtual environments. SML facilitates the scripting of traffic scenarios for behavioral driver studies in networked multi-user online 3D virtual environments.