The design of the virtual environment (VE) has to take into account several factors including the input and output devices, the design of the interaction metaphor and the application domain. In addition to these considerations, the design of collaborative virtual environment (CVE) needs to take into account the collaborative aspect of the interaction metaphor. in one hand, the interaction metap...

We present an ongoing project building a multimodal dialogue system for a music player supporting natural, flexible interaction and collaborative behavior. Since the system functionalities include searching a big MP3 database, multimodal output is needed.

This study investigated the comparative effects of audio-visually prompted collaborative dialogue on the listening comprehension development of symmetrical, asymmetrical, and asymmetrical teacher-fronted EFL learner groups. Besides, it explored the attitude of the participants of the groups concerning the effectiveness of collaborative dialogue for their listening comprehension improvement. The...

globally, there have been considerable debates on the ethical conduct and review of collaborative international researches. one of the great challenges is to conduct clinical trials in developing countries as externally-sponsored researches (esr). this descriptive survey has reviewed the status of this type of researches in iran during 2002 to 2003. this study was carried out in 44 universities...

The fundamental challenge for the next generation of Computer-Supported Collaborative Learning (CSCL) systems is to contribute to the invention, fostering and support of cultures of participation in which humans can express themselves and engage in personally meaningful activities. New models for knowledge creation, accumulation, and sharing are needed that allow, encourage, and support all par...

abstractthe present study attempted to investigate the impact of cooperation versus collaboration on college students` reading ability. to fulfill the purpose of the study, 90 participants were chosen from among 140 by means of administering the nelson proficiency test. they were divided into three groups: cooperative group, collaborative group, and control group. a fifty-item multiple-choice r...

Distance metric learning has been widely investigated in machine learning and information retrieval. In this paper, we study a particular content-based image retrieval application of learning distance metrics from historical relevance feedback log data, which leads to a novel scenario called collaborative image retrieval. The log data provide the side information expressed as relevance judgemen...

The clustering routing protocol for wireless sensor network (WSN) is the main part of this study. The number of sensor nodes in WSN is numerous and single node is extraordinarily limited in resource. The most significant aim of designing routing protocol of WSN is to reduce the overall energy dissipated in the network and to maximize the network lifetime. After taking into account the transmiss...

This chapter proposes a method to measure educational research based on academic publications. After presenting semantic approach identifying output, it shows how the production and geographic distribution of output evolved over past 30 years, different disciplines contributed this looks at other characteristics such as its collaborative nature or balance between qualitative quantitative