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: "auc maximization with k hyperplane"
  Abstract: Area Under the ROC Curve (AUC) is a reliable metric for measuring the quality of the classification performance on imbalanced data. The existing pairwise learn to rank linear algorithms can optimize the AUC metric efficiently, but lack modeling the nonlinearity underlying the data. The large scale and nonlinear distribution of many real world data render the kernelized variants of these linear classifiers impractical. In this paper, we propose a linear K-hyperplane classifier for AUC maximization. The proposed method employs a set of linear pairwise classifiers in order to approximate the nonlinear decision boundary. More specifically, we define a set of landmark points using unsupervised algorithm, and associate each landmark with a linear pairwise classifier. These linear classifiers are learned jointly on pairs of instances where each instance in the pair is weighted based on its distance from the corresponding landmark point. We use a local coding algorithm to estimate the weights of the instances. Experiments on several benchmark datasets demonstrate that our classifier is efficient and able to achieve roughly comparable AUC classification performance as compared to kernalized pairwise classifier. The proposed classifier also outperforms the linear RankSVM classifiers in terms of AUC performance.

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.LG(Machine Learning)