human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "fully proportional representation as resource allocation approximability results"
  Abstract: We model Monroe's and Chamberlin and Courant's multiwinner voting systems as a certain resource allocation problem. We show that for many restricted variants of this problem, under standard complexity-theoretic assumptions, there are no constant-factor approximation algorithms. Yet, we also show cases where good approximation algorithms exist (briefly put, these variants correspond to optimizing total voter satisfaction under Borda scores, within Monroe's and Chamberlin and Courant's voting systems).

Connected through hyperedge HE-1 (induced by source paper "proportional representation in vote streams"):
  with members:
    - "distributed monitoring of election winners"
    - "an optimal algorithm for l1 heavy hitters in insertion streams and related problems"
    - "better streaming algorithms for the maximum coverage problem"
    - "fishing out winners from vote streams"
    - "sample complexity for winner prediction in elections"
    - "properties of multiwinner voting rules"
    - "finding a collective set of items from proportional multirepresentation to group recommendation"
    - "on the computation of fully proportional representation"

Connected through hyperedge HE-2 (induced by source paper "properties of multiwinner voting rules"):
  with members:
    - "finding a collective set of items from proportional multirepresentation to group recommendation"
    - "justified representation in approval based committee voting"
    - "computational aspects of multi winner approval voting"
    - "achieving fully proportional representation approximability results"
    - "on the computation of fully proportional representation"
    - "the complexity of fully proportional representation for single crossing electorates"
    - "exact complexity of the winner problem for young elections"
    - "exact analysis of dodgson elections lewis carroll s 1876 voting system is complete for parallel access to np"

Connected through hyperedge HE-3 (induced by source paper "possible winners in noisy elections"):
  with members:
    - "weighted electoral control"
    - "search versus decision for election manipulation problems"
    - "control complexity in bucklin fallback and plurality voting an experimental approach"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "determining possible and necessary winners under common voting rules given partial orders"
    - "cloning in elections finding the possible winners"
    - "multimode control attacks on elections"
    - "control complexity in fallback voting"

Connected through hyperedge HE-4 (induced by source paper "finding a collective set of items from proportional multirepresentation to group recommendation"):
  with members:
    - "generalizing the single crossing property on lines and trees to intermediate preferences on median graphs"
    - "structure in dichotomous preferences"
    - "properties of multiwinner voting rules"
    - "ptas for minimax approval voting"
    - "computational aspects of multi winner approval voting"
    - "approximating the maxcover problem with bounded frequencies in fpt time"
    - "on the computation of fully proportional representation"
    - "a social welfare optimal sequential allocation procedure"

Connected through hyperedge HE-5 (induced by source paper "justified representation in approval based committee voting"):
  with members:
    - "proportional justified representation"
    - "structure in dichotomous preferences"
    - "properties of multiwinner voting rules"
    - "ptas for minimax approval voting"
    - "finding a collective set of items from proportional multirepresentation to group recommendation"
    - "computational aspects of multi winner approval voting"
    - "achieving fully proportional representation approximability results"
    - "on the computation of fully proportional representation"

Connected through hyperedge HE-6 (induced by source paper "computational aspects of multi winner approval voting"):
  with members:
    - "properties of multiwinner voting rules"
    - "finding a collective set of items from proportional multirepresentation to group recommendation"
    - "justified representation in approval based committee voting"
    - "achieving fully proportional representation is easy in practice"
    - "complexity of and algorithms for borda manipulation"
    - "exact analysis of dodgson elections lewis carroll s 1876 voting system is complete for parallel access to np"

Connected through hyperedge HE-7 (induced by source paper "cooperation and competition when bidding for complex projects centralized and decentralized perspectives"):
  with members:
    - "on the computation of fully proportional representation"
    - "achieving fully proportional representation is easy in practice"
    - "false name proof mechanisms for hiring a team"
    - "frugal mechanism design via spectral techniques"

Connected through hyperedge HE-8 (induced by source paper "the complexity of fully proportional representation for single crossing electorates"):
  with members:
    - "properties of multiwinner voting rules"
    - "approximating the maxcover problem with bounded frequencies in fpt time"
    - "on the computation of fully proportional representation"
    - "achieving fully proportional representation is easy in practice"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "clone structures in voters preferences"

Question: Please tell me which class the center node 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)