High Performance Publisher/Subscriber Communication for Adaptive, Collaborative Web-Based Learning

Yugyung Lee, Markus Junginger, James Geller

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The inability of current Internet-based learning systems to deal with different kinds of learners and the high cost of developing a new learning system are well-known problems in e-learning. To overcome these problems, we have designed a learning middleware suite, called the Collaborative and Sharable Learning (CoSL) system. CoSL is a tool set for building e-learning systems and for developing course materials for an e-learning environment. Given the geographic distribution of the components of a Web-based e-learning system, it is crucial to support fast communication between providers and consumers of e-learning course materials. In this paper, a high performance Publisher/Subscriber communication system has been designed for real-time communication between participants. CoSL allows us to build and manage global real-time learning systems in a distributed and heterogeneous environment.

Original languageEnglish (US)
Pages (from-to)14-27
Number of pages14
JournalInternational Journal of Distance Education Technologies (IJDET)
Issue number3
StatePublished - Jul 2003

All Science Journal Classification (ASJC) codes

  • Education
  • Computer Science Applications
  • Computer Networks and Communications


  • adaptive learning
  • collaborative learning
  • component-based system
  • knowledge model
  • learning channel
  • publisher/subscriber communication
  • user model


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