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 system for the use of answer set programming in reinforcement learning"
  Abstract: We present the software system QASP which integrates Reinforcement Learning (RL) with Answer Set Programming (ASP). Our framework allows for the ASP-based representation, computation and constraining of states and actions (and other events), and for the use of AnsProlog for the specification of action- and event-calculi and background knowledge for RL.

Connected through hyperedge HE-1 (induced by source paper "Potassco: The Potsdam Answer Set Solving Collection"):
  with members:
    - "Solving SAT and SAT Modulo Theories: From an abstract Davis--Putnam--Logemann--Loveland procedure to DPLL( T )"

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