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: "non oblivious strategy improvement"
  Abstract: We study strategy improvement algorithms for mean-payoff and parity games. We describe a structural property of these games, and we show that these structures can affect the behaviour of strategy improvement. We show how awareness of these structures can be used to accelerate strategy improvement algorithms. We call our algorithms nonoblivious because they remember properties of the game that they have discovered in previous iterations. We show that non-oblivious strategy improvement algorithms perform well on examples that are known to be hard for oblivious strategy improvement. Hence, we argue that previous strategy improvement algorithms fail because they ignore the structural properties of the game that they are solving.

Connected through hyperedge HE-1 (induced by source paper "a parity game tale of two counters"):
  with members:
    - "simple fixpoint iteration to solve parity games"
    - "solving parity games using an automata based algorithm"
    - "parity games zielonka s algorithm in quasi polynomial time"
    - "oink an implementation and evaluation of modern parity game solvers"
    - "attracting tangles to solve parity games"
    - "robust exponential worst cases for divide et impera algorithms for parity games"
    - "efficient parallel strategy improvement for parity games"
    - "succinct progress measures for solving parity games"

Connected through hyperedge HE-2 (induced by source paper "oink an implementation and evaluation of modern parity game solvers"):
  with members:
    - "efficient parallel strategy improvement for parity games"
    - "an ordered approach to solving parity games in quasi polynomial time and quasi linear space"
    - "succinct progress measures for solving parity games"
    - "a delayed promotion policy for parity games"
    - "improvement in small progress measures"
    - "generating and solving symbolic parity games"
    - "benchmarks for parity games"
    - "zielonka s recursive algorithm dull weak and solitaire games and tighter bounds"

Connected through hyperedge HE-3 (induced by source paper "attracting tangles to solve parity games"):
  with members:
    - "oink an implementation and evaluation of modern parity game solvers"
    - "robust exponential worst cases for divide et impera algorithms for parity games"
    - "efficient parallel strategy improvement for parity games"
    - "an ordered approach to solving parity games in quasi polynomial time and quasi linear space"
    - "a delayed promotion policy for parity games"
    - "improvement in small progress measures"
    - "benchmarks for parity games"

Connected through hyperedge HE-4 (induced by source paper "an ordered approach to solving parity games in quasi polynomial time and quasi linear space"):
  with members:
    - "symmetric strategy improvement"
    - "improved algorithms for one pair and k pair streett objectives"
    - "an exponential lower bound for the latest deterministic strategy iteration algorithms"
    - "from nondeterministic b uchi and streett automata to deterministic parity automata"

Connected through hyperedge HE-5 (induced by source paper "synthesising strategy improvement and recursive algorithms for solving 2 5 player parity games"):
  with members:
    - "symmetric strategy improvement"
    - "lazy probabilistic model checking without determinisation"
    - "gist a solver for probabilistic games"
    - "solving simple stochastic games with few random vertices"
    - "relational parametricity for computational effects"

Connected through hyperedge HE-6 (induced by source paper "the complexity of all switches strategy improvement"):
  with members:
    - "on simplex pivoting rules and complexity theory"
    - "the complexity of the simplex method"
    - "the simplex algorithm is np mighty"
    - "an exponential lower bound for the latest deterministic strategy iteration algorithms"
    - "the complexity of the homotopy method equilibrium selection and lemke howson solutions"
    - "exponential lower bounds for policy iteration"
    - "linear complementarity algorithms for infinite games"

Connected through hyperedge HE-7 (induced by source paper "improvement in small progress measures"):
  with members:
    - "symmetric strategy improvement"
    - "strategy derivation for small progress measures"
    - "zielonka s recursive algorithm dull weak and solitaire games and tighter bounds"

Connected through hyperedge HE-8 (induced by source paper "symmetric strategy improvement"):
  with members:
    - "an exponential lower bound for the latest deterministic strategy iteration algorithms"
    - "exponential lower bounds for policy iteration"
    - "from nondeterministic b uchi and streett automata to deterministic parity automata"

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)