DOI: 10.3897/jucs.66389

Authors: Uyara Ferreira Silva, Deller James Ferreira

Abstract: This paper presents a systematic literature review of the literature on productive dialogues and emotional aspects in Computer-Supported Collaborative Learning (CSCL) and also presents emotional aspects used in debates with conflicting points of view in other contexts. Initially, more than 400 articles were catalogued, belonging mainly to the databases of Springer and Science Direct, not limited by years, because of very important works referenced until today. The findings reveal that in CSCL there is a neglect in relation to the emotional dimension, the results also show that there are negative emotional aspects that impair the motivation in the participation of students in collaborative activities. Empathy is seen as an alternative to conflict resolution in different contexts, in addition to collaborative learning, but it is rarely addressed in CSCL.

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DOI: 10.3217/jucs-020-15-2005

Authors: Jinghuai She, Xi Zhang, Weiguang Wang, Patricia Ordóñez de Pablos

Abstract: Social media and mobile internet are both hottest topics in internet technologies which bring great challenges and wonderful opportunities for a large number of researchers in recent years. In some research fields, i.e., telemedicine or e-healthcare, Chinese researchers quickly took advantage of the spread of social media and mobile internet. In this study, we conducted a citation analysis with CiteSpace II by comparing the performance between researchers from China and advanced countries (e.g., USA) in Telemedicine field from 2005-2013. Although there remain huge gaps between China and developed countries, we found that social networks and mobile internet helped Chinese researchers to narrow the gap quickly in recent years. We also found that in the sub fields such as "SNS-facilitated telemedicine" or "m-healthcare", Chinese researchers even achieved similar performance as compared with world class researchers. These findings implicate that SNS or mobile internet may help researchers in developing countries to bridge the digital divide and enhance "late-mover advantage".

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DOI: 10.3217/jucs-007-06-0530

Authors: Werner Haas, Harald Mayer

Abstract: The utilization of new emerging standards such as MPEG-7 is expected to be a major breakthrough for content-based multimedia data retrieval. The main features of the MPEG standards series and of related standards, formats and protocols are presented. It is discussed, how they, despite their partially early and immature stage, can best be utilized to yield effective results in the context of a knowledge management environment. Complementary to that, the current status and state of the art in content-based retrieval for images, video and audio content is briefly presented. In the context of the KNOW-Center we are developing a prototype platform to implement a user friendly and highly informative access to audiovisual content as a potential component for a future knowledge management system. The technical requirements and the system architecture for the prototype platform are described.

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