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 "llull and copeland voting computationally resist bribery and control"):
  Abstract: The only systems previously known to be resistant to all the standard control types were highly artificial election systems created by hybridization. We study a parameterized version of Copeland voting, denoted by Copeland^\alpha, where the parameter \alpha is a rational number between 0 and 1 that specifies how ties are valued in the pairwise comparisons of candidates. We prove that Copeland^{0.5}, the system commonly referred to as "Copeland voting," provides full resistance to constructive control, and we prove the same for Copeland^\alpha, for all rational \alpha, 0 < \alpha < 1. Copeland voting is the first natural election system proven to have full resistance to constructive control. We also prove that both Copeland^1 (Llull elections) and Copeland^0 are resistant to all standard types of constructive control other than one variant of addition of candidates. Moreover, we show that for each rational \alpha, 0 \leq \alpha \leq 1, Copeland^\alpha voting is fully resistant to bribery attacks, and we establish fixed-parameter tractability of bounded-case control for Copeland^\alpha. We also study Copeland^\alpha elections under more flexible models such as microbribery and extended control and we integrate the potential irrationality of voter preferences into many of our results.

Includes members:
  Member "sincere strategy preference based approval voting fully resists constructive control and broadly resists destructive control":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a parameterized perspective on protecting elections")
  Member "on approximating optimal weighted lobbying and frequency of correctness versus average case polynomial time":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the complexity of probabilistic lobbying")
  Member "copeland voting fully resists constructive control":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "a parameterized perspective on protecting elections")
  Member "how hard is bribery in elections":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "selecting voting locations for fun and profit")
  Member "hybrid elections broaden complexity theoretic resistance to control":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a parameterized perspective on protecting elections")
  Member "a richer understanding of the complexity of election systems":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "computational social choice and computational complexity bffs")
  Member "dichotomy for voting systems":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "the complexity of online bribery in sequential elections")
  Member "anyone but him the complexity of precluding an alternative":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "selecting voting locations for fun and profit")

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)