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How is our knowledge organized? What research fields in computer science do exist? How are they interconnected? Previous work on knowledge mapping focused on building the map of all of sciences or a particular domain based on ISI published JCR (Journal Citation Report) dataset. Although this dataset covers most of important journals, it lacks of computer science conference and workshop proceedings...
In the recent years more and more people have begun to edit video files, as technologies are becoming more sophisticated and affordable. Web 2.0 has raised tagging functionality to a growing number of websites such as Flickr and YouTube. However, these services only provide basic video annotation support. In comparison to those well-known services there are many research efforts towards video semantization...
Digital storytelling is an effective approach to contextualized multimedia creation, management, and sharing on the Web 2.0. Professional story tellers use complex tools and templates since the early days of humankind. For example, Joseph Campbell's monomyth “The Hero's Journey” has been a successful story stereotype for many Hollywood blockbusters. However, Web 2.0 depends on user generated content...
Future multimedia applications in complex domains such as cultural heritage management demand the ongoing semantization of multimedia artifacts in communities of practice. These semantization tasks will be realized as web services. In this paper, we present an XMPP-based communication and web service architecture which is able (a) to create, store, annotate, adapt, share, and consume multimedia materials...
Multimedia information systems have been developed into service-ware. With the paradigms of web services, service oriented architectures (SOA), and Web 2.0 widgets, multimedia has become truly ubiquitous. However, interoperability, scalability, reliability and security are arising challenges at mobile multimedia service development. This paper focuses on the analysis, design, development and evaluation...
Advances in mobile communication technologies lead to a coalescence of location-based, multimedia services for user communities. However, easy development and maintenance of device-independent mobile services are still challenging. We have developed a service-oriented framework for mobile multimedia processing based on international standards like MPEG-7. Quality of mobile service experience is constantly...
Community satisfaction has become a crucial aspect to measure success of emerging community information systems. Thus, we propose a community success model (CSM) based on the seminal DeLone & McLean IS success model, gaming communities are part of our new media culture, entertaining people of all ages with online and video games. As a proof of concept, we apply our CSM to gaming communities. CSM...
Due to recent developments in the domain of mobile broadband communication and a growing availability of standardized development tools for mobile devices a new generation of mobile services and applications is expected to emerge in the near future combining well-established multimedia and community concepts with mobile aspects. However, it is often challenging to predict the success of such new services...
Nowadays various mobile platforms from PDA, smart phones to iPhones can deliver road warriors or trippers much mobile information. However, most mobile applications are lacking the "social intelligence" of real companionship. One reason is that community context and spatiotemporal context information are not well taken into consideration. In this paper we propose an ontology-based context...
Nonaka and his knowledge transformation model SECI revolutionized the thinking about organizations as social learning systems. He introduced technical concepts like hypertext into organizational theory. Now, after 15 years Web 2.0 concepts seem to be an ideal fit with Nonaka's SECI approach opening new doors for more personal, dynamic, and social learning on a global scale. In this paper, we present...
Social software is used widely in organizational knowledge management and professional learning. The PROLEARN network of excellence appreciates the trend of lowering the barriers between knowledge and learning management strategies for organizations and individuals. But, companies should not underestimate the needs for systematic support based on sound theories and technologies. We illustrate the...
User-driven annotation of learning content allows the user to interact with it in a flexible and an intuitive manner and hence personalize the content. This interaction, in most cases, follows the "paper and pen" note-taking paradigm. Though not without its advantages, this paradigm does not scale when the courses are delivered online as Web pages. These paper notes are not synchronous with...
Effective and efficient Web services infrastructures for geoprocessing are essential for fields such as e-government and e-tourism. However, few model-based approaches exist that let researchers analyze and measure system implementation performance. The authors present a performance evaluation of a spatial data infrastructure (SDI) implementation based on common standards. The SDI's purpose is to...
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