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 "proportionally representative participatory budgeting axioms and algorithms"):
  Abstract: Participatory budgeting is one of the exciting developments in deliberative grassroots democracy. We concentrate on approval elections and propose proportional representation axioms in participatory budgeting, by generalizing relevant axioms for approval-based multi-winner elections. We observe a rich landscape with respect to the computational complexity of identifying proportional budgets and computing such, and present budgeting methods that satisfy these axioms by identifying budgets that are representative to the demands of vast segments of the voters.

Includes members:
  Member "the condorcet principle for multiwinner elections from shortlisting to proportionality":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "proportionally representative participatory budgeting with ordinal preferences")
  Member "the core of the participatory budgeting problem":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "participatory budgeting models and approaches")
  Member "computational complexity of testing proportional justified representation":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "the expanding approvals rule improving proportional representation and monotonicity")
  Member "proportional justified representation":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "group fairness in committee selection")
  Member "justified representation in approval based committee voting":
    also connected through other hyperedges:
      - Hyperedge HE-5 (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.GT(Computer Science and Game Theory)