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: "are there any nicely structured preference profiles nearby"
  Abstract: We investigate the problem of deciding whether a given preference profile is close to having a certain nice structure, as for instance single-peaked, single-caved, single-crossing, value-restricted, best-restricted, worst-restricted, medium-restricted, or group-separable profiles. We measure this distance by the number of voters or alternatives that have to be deleted to make the profile a nicely structured one. Our results classify the problem variants with respect to their computational complexity, and draw a clear line between computationally tractable (polynomial-time solvable) and computationally intractable (NP-hard) questions.

Connected through hyperedge HE-1 (induced by source paper "incomplete preferences in single peaked electorates"):
  with members:
    - "on the likelihood of single peaked preferences"
    - "computational aspects of nearly single peaked electorates"
    - "recognising multidimensional euclidean preferences"
    - "modeling single peakedness for votes with ties"
    - "single peaked consistency for weak orders is easy"
    - "reinstating combinatorial protections for manipulation and bribery in single peaked and nearly single peaked electorates"
    - "the one dimensional euclidean domain finitely many obstructions are not enough"
    - "complexity of manipulative actions when voting with ties"

Connected through hyperedge HE-2 (induced by source paper "stable marriage with multi modal preferences"):
  with members:
    - "stable roommates with narcissistic single peaked and single crossing preferences"
    - "a polynomial time randomized reduction from tournament isomorphism to tournament asymmetry"
    - "stable matching with uncertain linear preferences"
    - "assessing the computational complexity of multi layer subgraph detection"
    - "the one dimensional euclidean domain finitely many obstructions are not enough"
    - "parameterized algorithmics for computational social choice nine research challenges"
    - "stable marriage with general preferences"
    - "clone structures in voters preferences"

Connected through hyperedge HE-3 (induced by source paper "computational aspects of nearly single peaked electorates"):
  with members:
    - "on the likelihood of single peaked preferences"
    - "structure in dichotomous preferences"
    - "the control complexity of r approval from the single peaked case to the general case"
    - "on the computation of fully proportional representation"
    - "the complexity of fully proportional representation for single crossing electorates"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "clone structures in voters preferences"
    - "the shield that never was societies with single peaked preferences are more open to manipulation and control"

Connected through hyperedge HE-4 (induced by source paper "on the likelihood of single peaked preferences"):
  with members:
    - "computational aspects of nearly single peaked electorates"
    - "the one dimensional euclidean domain finitely many obstructions are not enough"
    - "on the computation of fully proportional representation"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "clone structures in voters preferences"
    - "an empirical study of the manipulability of single transferable voting"
    - "where are the hard manipulation problems"
    - "the shield that never was societies with single peaked preferences are more open to manipulation and control"

Connected through hyperedge HE-5 (induced by source paper "campaign management under approval driven voting rules"):
  with members:
    - "computational aspects of nearly single peaked electorates"
    - "prices matter for the parameterized complexity of shift bribery"
    - "on the computation of fully proportional representation"
    - "complexity of manipulation bribery and campaign management in bucklin and fallback voting"
    - "weighted electoral control"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "determining possible and necessary winners under common voting rules given partial orders"
    - "normalized range voting broadly resists control"

Connected through hyperedge HE-6 (induced by source paper "structure in dichotomous preferences"):
  with members:
    - "computational aspects of nearly single peaked electorates"
    - "finding a collective set of items from proportional multirepresentation to group recommendation"
    - "computational aspects of multi winner approval voting"
    - "on the computation of fully proportional representation"
    - "the complexity of fully proportional representation for single crossing electorates"
    - "the complexity of manipulative attacks in nearly single peaked electorates"
    - "the shield that never was societies with single peaked preferences are more open to manipulation and control"

Connected through hyperedge HE-7 (induced by source paper "the one dimensional euclidean domain finitely many obstructions are not enough"):
  with members:
    - "clone structures in voters preferences"

Connected through hyperedge HE-8 (induced by source paper "parameterized algorithmics for computational social choice nine research challenges"):
  with members:
    - "computational aspects of nearly single peaked electorates"
    - "prices matter for the parameterized complexity of shift bribery"
    - "campaign management under approval driven voting rules"
    - "the control complexity of r approval from the single peaked case to the general case"
    - "complexity of control behaviors in k peaked elections for a variant of approval voting"
    - "approximating the maxcover problem with bounded frequencies in fpt time"
    - "computing socially efficient cake divisions"
    - "confronting intractability via parameters"

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)