human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "an open framework for the reproducible study of the iterated prisoner s dilemma"):
  Abstract: The Axelrod library is an open source Python package that allows for reproducible game theoretic research into the Iterated Prisoner’s Dilemma. This area of research began in the 1980s but suffers from a lack of documentation and test code. The goal of the library is to provide such a resource, with facilities for the design of new strategies and interactions between them, as well as conducting tournaments and ecological simulations for populations of strategies.  With a growing collection of 139 strategies, the library is a also a platform for an original tournament that, in itself, is of interest to the game theoretic community.  This paper describes the Iterated Prisoner’s Dilemma, the Axelrod library and its development, and insights gained from some novel research.

Includes members:
  Member "top tips to make your research irreproducible":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "ciw an open source discrete event simulation library")
  Member "share and enjoy publishing useful and usable scientific models":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "ciw an open source discrete event simulation library")
  Member "building a framework for predictive science":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "parsl pervasive parallel programming in python")
  Member "on some winning strategies for the iterated prisoner s dilemma or mr nice guy and the cosa nostra":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "recognising and evaluating the effectiveness of extortion in the iterated prisoner s dilemma")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.GT(Computer Science and Game Theory)