human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Semantic data models"):
  Abstract: Semantic data models have emerged from a requirement for more expressive conceptual data models. Current generation data models lack direct support for relationships, data abstraction, inheritance, constraints, unstructured objects, and the dynamic properties of an application. Although the need for data models with richer semantics is widely recognized, no single approach has won general acceptance. This paper describes the generic properties of semantic data models and presents a representative selection of models that have been proposed since the mid-1970s. In addition to explaining the features of the individual models, guidelines are offered for the comparison of models. The paper concludes with a discussion of future directions in the area of conceptual data modeling.

Includes members:
  Member "Knowledge-based approaches to database design":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Evaluating the quality of entity relationship models")
  Member "An Abstract Introduction to the Temporal-Hierarchic Data Model (THM)":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Towards multi-level and modular conceptual schema specifications")
  Member "Semantic Event Model and Its Implication on Situation Detection":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "Amit - the situation manager")
  Member "Understanding the term reference model in information systems research: history, literature analysis and explanation":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "Extending the Adaptability of Reference Models")
  Member "Federated database systems for managing distributed, heterogeneous, and autonomous databases":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "Piazza: data management infrastructure for semantic web applications")
  Member "Algebraic support for complex objects with arrays, identity, and inheritance":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "An Object-Oriented Query Model: An Algebraic Approach With Closure.")
  Member "Uniform comparison of data models using containment modeling":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "Interoperability for GIS document management in environmental planning")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science