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 Multi-Temporal Context-aware System for Competences Management"
  Abstract: The evolution of computing technology and wireless networks has contributed to the miniaturization of mobile devices and their increase in power, providing services anywhere and anytime. In this scenario, applications have considered the user’s contexts to make decisions (Context Awareness). Context-aware applications have enabled new opportunities in different areas, for example, education, games and entertainment, commerce, and competence management. In this article, we present MultCComp, a multi-temporal context-aware system for competences management. The main system contribution is to take advantage of the workers’ present and past contexts to help them to develop their competences. We define as multi-temporal context awareness the joint use of workers’ present and past contexts to assist them in the development of their competences. We developed a prototype and conducted two experiments with it in an evaluation environment. The first experiment aimed to demonstrate the system functionalities. It consisted of two evaluation scenarios that were followed by two users. The second experiment focused on evaluating the acceptance of the system. It comprised a scenario that was followed by 21 users, who filled out a questionnaire at the end of the test.

Connected through hyperedge HE-1 (induced by source paper "Pervasive computing: vision and challenges"):
  with members:
    - "Using Activity Theory to Model Context Awareness: a Qualitative Case Study"
    - "Using architecture models for runtime adaptability"
    - "Adapting to network and client variability via on-demand dynamic distillation"
    - "A Review on Distributed Application Processing Frameworks in Smart Mobile Devices for Mobile Cloud Computing"
    - "A lightweight secure cyber foraging infrastructure for resource-constrained devices"
    - "Infrastructures and Their Discontents: Implications for Ubicomp"
    - "BOSS: building operating system services"

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