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: "Semantic integration: a survey of ontology-based approaches"
  Abstract: Semantic integration is an active area of research in several disciplines, such as databases, information-integration, and ontologies. This paper provides a brief survey of the approaches to semantic integration developed by researchers in the ontology community. We focus on the approaches that differentiate the ontology research from other related areas. The goal of the paper is to provide a reader who may not be very familiar with ontology research with introduction to major themes in this research and with pointers to different research projects. We discuss techniques for finding correspondences between ontologies, declarative ways of representing these correspondences, and use of these correspondences in various semantic-integration tasks

Connected through hyperedge HE-1 (induced by source paper "PrDLs: a new kind of probabilistic description logics about belief"):
  with members:
    - "Probabilistic deduction with conditional constraints over basic events"

Connected through hyperedge HE-2 (induced by source paper "Ontology versioning on the semantic web"):
  with members:
    - "Federated database systems for managing distributed, heterogeneous, and autonomous databases"
    - "Towards Semantic Web Portals."

Connected through hyperedge HE-3 (induced by source paper "The Role of Ontologies in Disaster Recovery Planning"):
  with members:
    (none)

Connected through hyperedge HE-4 (induced by source paper "Lifting metamodels to ontologies: a step to the semantic integration of modeling languages"):
  with members:
    - "Detection of Semantically Equivalent Fragments for Business Process Model Change Management"

Connected through hyperedge HE-5 (induced by source paper "Generating SPARQL executable mappings to integrate ontologies"):
  with members:
    - "Information integration in the enterprise"
    - "Ontology Evolution: Not the Same as Schema Evolution"
    - "Answering queries using views: A survey"
    - "Towards discovering ontological models from big RDF data"

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