美国计算机协会期刊
期刊
会议
图书
作者:Abdulmotaleb El Saddik , Stephan Fischer , Ralf Steinmetz
来源:[J].Journal on Educational Resources in Computing (JERIC), 2001, Vol.1 (1es), pp.4-esACM
摘要:The production of interactive multimedia content is in most cases an expensive task in terms of time and cost. Hence, optimizing production by exploiting the reusability of interactive multimedia elements is mandatory. Reusability can be triggered by a combination of resuable mul...
作者:... Abdulmotaleb El Saddik , Nicolas D. Georganas , Ralf Steinmetz
来源:[J].Journal on Educational Resources in Computing (JERIC), 2001, Vol.1 (1es), pp.9-esACM
摘要:Many educational resources and objects have been developed as Java applets or applications, which can accessed by simply downloading them from various repositories. It is often necessary to share these resources in real time, for instance when an instructor teaches remote student...
作者:Ralf Steinmetz , Jörg M. Haake
来源:[J].ACM SIGMultimedia Records, 2009, Vol.1 (1), pp.11-12ACM
摘要:Creating high quality E-Learning material is a time and cost consuming task. Reusing existing material could reduce these costs. But often a one-to-one reuse of the existing material is not possible, as the new usage scenario differs from the original one. If, for example, a lear...
作者:Marek Meyer , Ralf Steinmetz , Abdulmotaleb El Saddik
来源:[J].ACM SIGMultimedia Records, 2009, Vol.1 (2), pp.10-11ACM
摘要:This thesis investigates modular reuse of learning resources. In particular, it considers a scenario of reuse in which existing learning resources serve as preliminary products for the creation of new learning resources for Web based training. Authors are interested in reusing th...
作者:... Frederik Krist , Parag Mogre , Ralf Steinmetz
来源:[J].ACM SIGMOBILE Mobile Computing and Communications Review, 2006, Vol.10 (4), pp.24-25ACM
摘要:Ad hoc networking research needs meaningful models to describe the behavior of multihop routes. We survey existing static models to describe the distribution of link and path distances as well as dynamic models describing the lifetime of links, paths, and routes. Next, we enhance...
作者:... Michael Liepert , Michael Zink , Ralf Steinmetz
来源:[J].ACM SIGMETRICS Performance Evaluation Review, 2000, Vol.27 (4), pp.20-26ACM
摘要:A recent paper by Hua, Cai and Sheu [7] describes Patching as a technique for reducing server load in a true video-on-demand (TVoD) system. It is a scheme for multicast video transmissions, which outperforms techniques such as Batching in response time and Piggybacking in bandwid...
作者:Marek Meyer , Christoph Rensing , Ralf Steinmetz
来源:[J].ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)(IF 0.935), 2011, Vol.7 (1), pp.1-23ACM
摘要:This article investigates a scenario of reuse in which existing learning resources serve as preliminary products for the creation of new learning resources. Authors should be able to reuse learning resources and also parts of them at different levels of granularity in a modular w...
作者:Zixia Huang , Klara Nahrstedt , Ralf Steinmetz
来源:[J].ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)(IF 0.935), 2013, Vol.9 (1s), pp.1-23ACM
摘要:The evolution of multimedia applications has drastically changed human life and behaviors. New communication technologies lead to new requirements for multimedia synchronization. This article presents a historical view of temporal synchronization studies focusing on continuous mu...
作者:... Markus Fidler , Klara Nahrstedt , Ralf Steinmetz
来源:[J].ACM SIGCOMM Computer Communication Review(IF 0.909), 2013, Vol.43 (5), pp.13-18ACM
摘要:Dagstuhl hosted a three-day seminar on the Future Internet on March 25-27, 2013. At the seminar, about 40 invited researchers from academia and industry discussed the promises, approaches, and open challenges of the Future Internet. This report gives a general overview of the pre...

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