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  • Manfred Kaul
  • 1986
Precedence graph grammars are of major interest in all those applications of graph grammars, where highly efficient parsers are needed. Up to now there are no other graph parsers with the same performance. Due to the fact, that even regular graph grammars with very restricted embedding relations have a NP-complete membership problem, different kinds than(More)
An INFORMATION ON DEMAND (IOD) Teleservice developed at the German National Research Center for Information Technology (GMD) provides remote access to multimedia information consisting of audio, video, and text. It uses a bidirectional narrow-band message link between the end user and the service provider, and a unidirectional broadband data link from the(More)
Three emerging technologies are combined in a setup that has been installed and tested at GMD-the German National Research Center for Information Technology: 1. Multimedia Telecooperation Applications; 2. ATM-based high-speed networks; 3. Satellite links. The results are promising: After some initial problems, the complete scenario is up and running,(More)