The Personality and emotions are effective parameters in learning process. Thus, virtual learning environments should pay attention to these parameters. In this paper, a new e-learning model is designed and implemented according to these parameters. The Virtual learning environment that is presented here uses two agents: Virtual Tutor Agent (VTA), and Virtual Classmate Agent (VCA). During the l...

several researches in psychology and science of education affirm the impact of learning style on the learning process and encourage its taking into account in the teaching strategies in order to facilitate the task for learners and improve their results. This article deals with the relationship between the characteristics of the learner, the teaching materials and the context in which takes pla...

We study the development of conjunctive keyword searchable scheme which enables one to search encrypted documents by using more than one keyword. The notion of conjunctive keyword searching was presented by Golle et al. in 2004. However, their security model was constructed in a symmetric-key setting which is not applicable for the overall applications in the reality. So Park et al. extended Go...

In this paper we present several proofs on the extension of M. Riesz fractional integration and di¤erentiation to the contexts of spaces of homogeneous type and measure metric spaces with non-doubling measures. 1. Introduction, some de…nitions, and a basic lemma Professor M. Ash asked me to write a survey article on some of the results that Stephen Vági and I obtained in the nineties on fractio...

Creating safe Transportation Cyber-Physical Systems (CPSs) presents new challenges as autonomous operation is attempted in unconstrained operational environments. The extremely high safety level required of such systems (perhaps one critical failure per billion operating hours) means that validation approaches will need to consider not only normal operation, but also operation with system fault...

The importance of computer learner corpora for research in both second language acquisition and foreign language teaching is rapidly increasing. Computer learner corpora can provide us with data to describe the learner’s interlanguage system at different points of its development and they can be used to create pedagogical tools. In this paper, we first present a new computer learner corpora in ...

This paper describes how graduate students used paper-based support tools to help them acquire a complex cognitive skill during unsupervised practice, and explains why the tools were able to support the practice. The paper also explains how to design such tools and describes a comparable computer-based performance support system. Ohlsson’s (1996) theory of learning from performance errors state...

This paper discusses learner-centered approaches and evaluation in English language teaching and learning materials design. Based on the researches in this field, a framework is developed for the evaluation of learner-centered components contained in the materials. Thereafter, we apply the criteria to the assessment of two major English textbooks College English (1991) and Experiencing English ...

In this paper, we show the evolution from the earliest frame-by-frame synthetic actors to real-time perceptive actors living in distributed virtual environments or even in the real world. We first compare requirements and methods for frame-by-frame and real-time actors. Then, we introduce a new classification of synthetic actors with four categories: participants, guided actors, autonomous acto...

Based on a non-linear single track model which describes the dynamics of vehicle, an optimal path planning strategy is developed. Real time optimization is used to generate reference control values to allow leading the vehicle alongside a calculated lane which is optimal for different objectives such as energy consumption, run time, safety or comfort characteristics. Strict mathematic formulati...