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: "testing graph isomorphism in parallel by playing a game"
  Abstract: Our starting point is the observation that if graphs in a class C have low descriptive complexity in first order logic, then the isomorphism problem for C is solvable by a fast parallel algorithm (essentially, by a simple combinatorial algorithm known as the multidimensional Weisfeiler-Lehman algorithm). Using this approach, we prove that isomorphism of graphs of bounded treewidth is testable in TC1, answering an open question posed by Chandrasekharan. Furthermore, we obtain an AC1 algorithm for testing isomorphism of rotation systems (combinatorial specifications of graph embeddings). The AC1 upper bound was known before, but the fact that this bound can be achieved by the simple Weisfeiler-Lehman algorithm is new. Combined with other known results, it also yields a new AC1 isomorphism algorithm for planar graphs.

Connected through hyperedge HE-1 (induced by source paper "distributed testing of graph isomorphism in the congest model"):
  with members:
    - "distributed detection of cliques in dynamic networks"
    - "property testing of planarity in the congest model"
    - "distributed triangle detection via expander decomposition"
    - "detecting cliques in congest networks"
    - "distributed subgraph detection"
    - "fooling views a new lower bound technique for distributed computations under congestion"
    - "distributed detection of cycles"
    - "faster and simpler distributed algorithms for testing and correcting graph properties in the congest model"

Connected through hyperedge HE-2 (induced by source paper "the complexity of bisimulation and simulation on finite systems"):
  with members:
    - "canonizing graphs of bounded tree width in logspace"
    - "l recursion and a new logic for logarithmic space"

Connected through hyperedge HE-3 (induced by source paper "the weisfeiler leman dimension of planar graphs is at most 3"):
  with members:
    - "near optimal lower bounds on quantifier depth and weisfeiler leman refinement steps"
    - "upper bounds on the quantifier depth for graph differentiation in first order logic"
    - "tangled up in blue a survey on connectivity decompositions and tangles"
    - "graphs identified by logics with counting"
    - "dynamic complexity of planar 3 connected graph isomorphism"
    - "practical graph isomorphism ii"
    - "pebble games and linear equations"
    - "planar graphs logical complexity and parallel isomorphism tests"

Connected through hyperedge HE-4 (induced by source paper "upper bounds on the quantifier depth for graph differentiation in first order logic"):
  with members:
    - "near optimal lower bounds on quantifier depth and weisfeiler leman refinement steps"
    - "graph isomorphism in quasipolynomial time"
    - "graphs identified by logics with counting"
    - "tight lower and upper bounds for the complexity of canonical colour refinement"
    - "universal covers color refinement and two variable counting logic lower bounds for the depth"
    - "the propagation depth of local consistency"
    - "practical graph isomorphism ii"
    - "dimension reduction via colour refinement"

Connected through hyperedge HE-5 (induced by source paper "canonizing graphs of bounded tree width in logspace"):
  with members:
    - "reduction techniques for graph isomorphism in the context of width parameters"
    - "fixed parameter tractable canonization and isomorphism test for graphs of bounded treewidth"
    - "restricted space algorithms for isomorphism on bounded treewidth graphs"

Connected through hyperedge HE-6 (induced by source paper "graph isomorphism for bounded genus graphs in linear time"):
  with members:
    - "fixed parameter tractable canonization and isomorphism test for graphs of bounded treewidth"
    - "polynomial bounds for the grid minor theorem"
    - "structure theorem and isomorphism test for graphs with excluded topological subgraphs"

Connected through hyperedge HE-7 (induced by source paper "fixed point definability and polynomial time on chordal graphs and line graphs"):
  with members:
    - "capturing polynomial time on interval graphs"
    - "planar graphs logical complexity and parallel isomorphism tests"
    - "from invariants to canonization in parallel"

Connected through hyperedge HE-8 (induced by source paper "capturing polynomial time on interval graphs"):
  with members:
    - "fixed point definability and polynomial time on chordal graphs and line graphs"

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)