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 Review of Factors Influencing Customer Acceptance of Internet of Things Services"
  Abstract: {}

Connected through hyperedge HE-1 (induced by source paper "A novel user authentication and key agreement scheme for heterogeneous ad hoc wireless sensor networks, based on the Internet of Things notion"):
  with members:
    - "BorderSense: Border patrol through advanced wireless sensor networks"
    - "Security, privacy and trust in Internet of Things"

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: Engineering