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 survey of web caching schemes for the Internet"
  Abstract: The World Wide Web can be considered as a large distributed information system that provides access to shared data objects. As one of the most popular applications currently running on the Internet, the World Wide Web is of an exponential growth in size, which results in network congestion and server overloading. Web caching has been recognized as one of the effective schemes to alleviate the service bottleneck and reduce the network traffic, thereby minimize the user access latency. In this paper, we first describe the elements of a Web caching system and its desirable properties. Then, we survey the state-of-art techniques which have been used in Web caching systems. Finally, we discuss the research frontier in Web caching.

Connected through hyperedge HE-1 (induced by source paper "Proxy cache coherency and replacement-towards a more complete picture"):
  with members:
    - "Potential benefits of delta encoding and data compression for HTTP"

Connected through hyperedge HE-2 (induced by source paper "DynCoDe : An Architecture for Transparent Dynamic Content Delivery"):
  with members:
    (none)

Connected through hyperedge HE-3 (induced by source paper "Cache Replacement for Transcoding Proxy Caching"):
  with members:
    - "Exploiting network awareness to enhance DASH over wireless"

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