human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "A Continuous Media Player"
  Abstract: The design and implementation of a continuous media player for Unix workstations is described. The player can play synchronized digital video and audio read from a file server. The system architecture and results of preliminary performance experiments are presented.

Connected through hyperedge HE-1 (induced by source paper "Building Secure and Reliable Network Applications"):
  with members:
    - "Moversight: a group communication protocol for mobile scenarios"

Connected through hyperedge HE-2 (induced by source paper "Synchronization and storage models for multimedia objects"):
  with members:
    - "The role of time in information processing: a survey"
    - "A Design and Implementation of Museum Multimedia Information System."

Connected through hyperedge HE-3 (induced by source paper "Popularity-based assignment of movies to storage devices in a video-on-demand system"):
  with members:
    - "Optimal file placement in VOD system using genetic algorithm"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science