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: "klmat a kernel least mean absolute third algorithm"
  Abstract: The kernel methods provide an interesting way to improve the performance of nonlinear adaptive filters. In this paper, a kernel least mean absolute third (KLMAT) algorithm is proposed for accelerating the convergence speed of the kernel adaptive filter. Combining the benefits of the kernel method and the least mean absolute third (LMAT) algorithm, the proposed KLMAT performs robustly against noise with different probability densities. To further improve the convergence property of the KLMAT algorithm, a variable step-size (VSS) version is designed by a Lorentzian function, which is called the VSS-KLMAT algorithm. Moreover, the stability and convergence property of the proposed algorithms are analyzed. Simulation results in the context of time series prediction show that the KLMAT and VSS-KLMAT algorithms provide faster convergence rate than LMAT and kernel least mean square (KLMS) algorithms with the same steady-state error in the various noise probability densities.

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.SY(Systems and Control)