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: "parametrized nash equilibria in atomic splittable congestion games via weighted block laplacians"
  Abstract: We consider atomic splittable congestion games with affine cost functions and develop an algorithm that computes all Nash equilibria of the game parametrized by the players' demands. That is, given a game where the players' demand rates are piece-wise linear functions of some parameter $\lambda \geq 0$, we compute a family of multi-commodity flows $\mathbf{x}(\lambda)$ parametrized in $\lambda$ such that $\mathbf{x}(\lambda)$ is a Nash equilibrium for the corresponding demand rate vector $\mathbf{r}(\lambda)$. Our algorithm is based on a novel weighted block Laplacian matrix concept for atomic splittable games. We show that the weighted block Laplacians have similar properties as ordinary weighted graph Laplacians which allows to compute the parametrized Nash equilibria by matrix pivot operations. Our algorithm is output-polynomial on all instances, and each pivot step needs only $\mathcal{O}((nk)^{2.4})$ where $k$ is the number of players and $n$ is the number of vertices.

Connected through hyperedge HE-1 (induced by source paper "efficient estimation of equilibria in large aggregative games with coupling constraints"):
  with members:
    - "nash and wardrop equilibria in aggregative games with coupling constraints"
    - "nonsmooth aggregative games with coupling constraints and infinitely many classes of players"
    - "routing game on parallel networks the convergence of atomic to nonatomic"
    - "coalitions in nonatomic network congestion games"

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)