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 "aggregation over metric spaces proposing and voting in elections budgeting and legislation"):
  Abstract: We consider a general model of social choice over metric spaces, in which---similarly to the spatial model of elections---each voter specifies an ideal element of the metric space. The ideal element functions as a vote, where each voter prefers elements that are closer to her ideal element. But it also functions as a proposal, thus making all participants equal not only as voters but also as proposers. We consider Condorcet aggregation and a continuum of solution concepts, ranging from minimizing the sum of distances to minimizing the maximum distance. #R##N#We study applications of the abstract model to various social choice settings, including single-winner elections, committee elections, participatory budgeting, and participatory legislation. For each application, we compare each solution concept to known voting rules and study various properties of the resulting voting rules. Our framework provides expressive aggregation for a broad range of social choice settings while remaining simple for voters, and may enable a unified and integrated implementation for all these settings, as well as unified extensions such as sybil-resiliency, proxy voting, and deliberative decision making.

Includes members:
  Member "on computing centroids according to the p norms of hamming distance vectors":
    also connected through other hyperedges:
      (none)
  Member "point foundations of e democracy":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "sybil resilient conductance based community growth")
  Member "incorporating reality into social choice":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "sybil resilient social choice with partial participation")
  Member "the complexity of multiwinner voting rules with variable number of winners":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "how hard is it to control a group")
  Member "proportionally representative participatory budgeting axioms and algorithms":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "participatory budgeting models and approaches")
  Member "sequential deliberation for social choice":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "ordinal approximation for social choice matching and facility location problems given candidate positions")
  Member "metric distortion of social choice rules lower bounds and fairness properties":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "peeking behind the ordinal curtain improving distortion via cardinal queries")
  Member "the core of the participatory budgeting problem":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "participatory budgeting models and approaches")

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)