A key to successful image compression is a combination of (1) energy compaction by
appropriate transform algorithms to exploit data redundancy,(2) judicious quantization of …

E-learning technologies have allowed authoring and playback of standardized reusable
learning objects (RLO) for several years. Effective mobile learning requires similar …

We have developed an autonomous and collaborative vocabulary learning system SIGMA
(Special-Interested-Group Material Accumulator). The system has a sub system PSI …

We have begun to define and explore an agent-based distributed computational
environment to support pervasive learning. In this article, we describe the system for …

An activity configuration and personalization framework based on a multi-agent system for a
pervasive learning environment is presented. The technical infrastructure includes several …

This paper describes a pedagogical and technical approach for sustaining a flow of
collaborative learning activities outside of school and in class involving tasks of preparation …

We have implemented the PHI system that can be used to acquire vocabularies by using
iPods. In addition, we have developed the PSI system that can be used to create learning …

Mobile learning is suitable for vocabulary learning in foreign language acquirement. We
have verified the effectiveness of short movie materials of about 5-second movies for foreign …

This paper presents an approach for hel** developers to build or integrate educational
tools into virtual learning communities, where they have to interact with other tools. Our …

In acquiring a vocabulary, it is said to be effective to increase the time of exposure to the
words and to memorize them with association. In our approach where a learner memorizes …