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: "a separation of np and conp in multiparty communication complexity"
  Abstract: We prove that NP differs from coNP and coNP is not a subset of MA in the number-on-forehead model of multiparty communication complexity for up to k = (1-\epsilon)log(n) players, where \epsilon>0 is any constant. Specifically, we construct a function F with co-nondeterministic complexity O(log(n)) and Merlin-Arthur complexity n^{\Omega(1)}. The problem was open for k > 2.

Connected through hyperedge HE-1 (induced by source paper "a nearly optimal lower bound on the approximate degree of ac 0"):
  with members:
    - "on szk and pp"
    - "separations in query complexity based on pointer functions"
    - "dual polynomials for collision and element distinctness"
    - "distribution independent reliable learning"
    - "dual lower bounds for approximate degree and markov bernstein inequalities"
    - "faster private release of marginals on small databases"
    - "hardness amplification and the approximate degree of constant depth circuits"
    - "faster algorithms for privately releasing marginals"

Connected through hyperedge HE-2 (induced by source paper "distribution independent reliable learning"):
  with members:
    - "dual lower bounds for approximate degree and markov bernstein inequalities"
    - "hardness amplification and the approximate degree of constant depth circuits"
    - "representation approximation and learning of submodular functions using low rank decision trees"
    - "optimal bounds for sign representing the intersection of two halfspaces by polynomials"

Connected through hyperedge HE-3 (induced by source paper "hardness amplification and the approximate degree of constant depth circuits"):
  with members:
    - "distribution independent reliable learning"
    - "dual lower bounds for approximate degree and markov bernstein inequalities"
    - "on arthur merlin games in communication complexity"
    - "strong direct product theorems for quantum communication and query complexity"
    - "the intersection of two halfspaces has high threshold degree"
    - "a note on the sign degree of formulas"
    - "optimal bounds for sign representing the intersection of two halfspaces by polynomials"
    - "multiparty communication complexity of disjointness"

Connected through hyperedge HE-4 (induced by source paper "dual lower bounds for approximate degree and markov bernstein inequalities"):
  with members:
    - "hardness amplification and the approximate degree of constant depth circuits"
    - "open problems in analysis of boolean functions"
    - "the intersection of two halfspaces has high threshold degree"
    - "multiparty communication complexity of disjointness"
    - "a dual polynomial for or"
    - "communication lower bounds using dual polynomials"
    - "disjointness is hard in the multi party number on the forehead model"

Connected through hyperedge HE-5 (induced by source paper "tensor rank and strong quantum nondeterminism in multiparty communication"):
  with members:
    - "tensor rank some lower and upper bounds"
    - "disjointness is hard in the multi party number on the forehead model"
    - "nondeterministic quantum query and quantum communication complexities"
    - "communication complexity lower bounds by polynomials"

Connected through hyperedge HE-6 (induced by source paper "on arthur merlin games in communication complexity"):
  with members:
    - "the partition bound for classical communication complexity and query complexity"
    - "quantum arthur merlin games"
    - "rectangle size bounds and threshold covers in communication complexity"
    - "bounds for small error and zero error quantum algorithms"

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.CC(Computational Complexity)