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: "fast parallel fixed parameter algorithms via color coding"
  Abstract: Fixed-parameter algorithms have been successfully applied to solve numerous difficult problems within acceptable time bounds on large inputs. However, most fixed-parameter algorithms are inherently \emph{sequential} and, thus, make no use of the parallel hardware present in modern computers. We show that parallel fixed-parameter algorithms do not only exist for numerous parameterized problems from the literature -- including vertex cover, packing problems, cluster editing, cutting vertices, finding embeddings, or finding matchings -- but that there are parallel algorithms working in \emph{constant} time or at least in time \emph{depending only on the parameter} (and not on the size of the input) for these problems. Phrased in terms of complexity classes, we place numerous natural parameterized problems in parameterized versions of AC$^0$. On a more technical level, we show how the \emph{color coding} method can be implemented in constant time and apply it to embedding problems for graphs of bounded tree-width or tree-depth and to model checking first-order formulas in graphs of bounded degree.

Connected through hyperedge HE-1 (induced by source paper "dynamic complexity meets parameterised algorithms"):
  with members:
    - "on the descriptive complexity of color coding"
    - "reoptimization of parameterized problems"
    - "a strategy for dynamic programs start over and muddle through"
    - "dynamic parameterized problems and algorithms"
    - "reachability is in dynfo"
    - "point line cover the easy kernel is essentially tight"

Connected through hyperedge HE-2 (induced by source paper "parameterised counting classes tail versus reductions"):
  with members:
    - "block interpolation a framework for tight exponential time counting complexity"
    - "parameterized analogues of probabilistic computation"
    - "completeness results for parameterized space classes"

Connected through hyperedge HE-3 (induced by source paper "on the descriptive complexity of color coding"):
  with members:
    - "computing hitting set kernels by ac 0 circuits"
    - "slicewise definability in first order logic with bounded quantifier rank"
    - "on the parallel parameterized complexity of the graph isomorphism problem"

Connected through hyperedge HE-4 (induced by source paper "parameterised counting classes with bounded nondeterminism"):
  with members:
    - "counting of teams in first order team logics"
    - "some lower bounds in parameterized rm ac 0"

Connected through hyperedge HE-5 (induced by source paper "towards work efficient parallel parameterized algorithms"):
  with members:
    - "computing hitting set kernels by ac 0 circuits"
    - "computing kernels in parallel lower and upper bounds"

Connected through hyperedge HE-6 (induced by source paper "computing hitting set kernels by ac 0 circuits"):
  with members:
    - "computing kernels in parallel lower and upper bounds"
    - "slicewise definability in first order logic with bounded quantifier rank"
    - "some lower bounds in parameterized rm ac 0"
    - "towards optimal and expressive kernelization for d hitting set"

Connected through hyperedge HE-7 (induced by source paper "the parameterized space complexity of model checking bounded variable first order logic"):
  with members:
    - "computing hitting set kernels by ac 0 circuits"
    - "one hierarchy spawns another graph deconstructions and the complexity classification of conjunctive queries"
    - "deciding first order properties of nowhere dense graphs"
    - "on the complexity of existential positive queries"
    - "bounds on monotone switching networks for directed connectivity"
    - "fixed parameter tractability definability and model checking"

Connected through hyperedge HE-8 (induced by source paper "on the parallel parameterized complexity of the graph isomorphism problem"):
  with members:
    - "capturing polynomial time using modular decomposition"
    - "deciding circular arc graph isomorphism in parameterized logspace"
    - "canonizing graphs of bounded tree width in logspace"
    - "graph isomorphism in quasipolynomial time"
    - "graph isomorphism parameterized by elimination distance to bounded degree"
    - "fixed parameter tractable canonization and isomorphism test for graphs of bounded treewidth"

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)