The knowledge imperfections should be considered when modeling complex problems. A solution is to develop a model that reduces the complexity and another option is to represent the imperfections: uncertainty, vagueness and incompleteness in the knowledge base. This paper proposes…

This paper introduces a new set of compact interactive simulations developed for the constructive learning of computer networks concepts. These simulations, which compose a virtual laboratory implemented as portable Java applets, have been created by combining EJS (Easy Java Simulations)…

This article discusses a project to design and implement a small French vocabulary tutor for the World Wide Web. The tutor includes words, pictures, and sounds to help students learn new words and their pronunciation. The article highlights salient features…

This paper reports on the grammatical and programmatical production aspects of the Hebrewer, a cross-platform web-based reference work in the form of a Hebrew inflection generator. The Hebrewer, a Java applet/servlet combination, is currently capable of generating 2,500 nouns in…

Currently, the number of mobile applications that require (wireless) connectivity is constantly increasing. The need for sharing information among mobile devices exists in many applications, and almost every data exchange between these devices involve the same requirements: a means for…

SEAsite is a web-based interactive learning resource site for Southeast Asian Languages (Indonesian, Tagalog, Thai, Khmer, Lao, Burmese, and Vietnamese). Its language learning materials feature second language (L2) script support, streaming audio, pictures, and interactive exercise types that allow learners…

This paper presents BANZAI, a new intelligent language tutor program developed by the author over the past two years. The BANZAI application is programmed in Java and runs in a web browser over the Internet. It is designed to develop…

DLP is a basic java-based IDE specifically conceived for DeLP, that allows to compile DeLP programs and queries into JAM opcodes, execute those opcodes, and even witness the actual step by step construction of the dialectical tree that is built…

The objective of this paper is to present a system to communicate hidden information among different users by means of images. The tasks that the system is able to carry on can be divided in two different groups of utilities,…