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 "parameterized algorithmics for computational social choice nine research challenges"):
  Abstract: Computational Social Choice is an interdisciplinary research area involving Economics, Political Science, and Social Science on the one side, and Mathematics and Computer Science (including Artificial Intelligence and Multiagent Systems) on the other side. Typical computational problems studied in this field include the vulnerability of voting procedures against attacks, or preference aggregation in multi-agent systems. Parameterized Algorithmics is a subfield of Theoretical Computer Science seeking to exploit meaningful problem-specific parameters in order to identify tractable special cases of in general computationally hard problems. In this paper, we propose nine of our favorite research challenges concerning the parameterized complexity of problems appearing in this context.

Includes members:
  Member "computational aspects of nearly single peaked electorates":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "on the complexity of constructive control under nearly single peaked preferences")
  Member "prices matter for the parameterized complexity of shift bribery":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "optimal bribery in voting")
  Member "are there any nicely structured preference profiles nearby":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "incomplete preferences in single peaked electorates")
  Member "campaign management under approval driven voting rules":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "approximation and hardness of shift bribery")
  Member "the control complexity of r approval from the single peaked case to the general case":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "on the complexity of constructive control under nearly single peaked preferences")
  Member "complexity of control behaviors in k peaked elections for a variant of approval voting":
    also connected through other hyperedges:
      (none)
  Member "approximating the maxcover problem with bounded frequencies in fpt time":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "finding a collective set of items from proportional multirepresentation to group recommendation")
  Member "computing socially efficient cake divisions":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "dividing a graphical cake")

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.MA(Multiagent Systems)