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: "discovery of bias and strategic behavior in crowdsourced performance assessment"
  Abstract: This study examines strategic behavior in “360-degree” performance appraisal systems, in which an employee is evaluated by her supervisor, subordinate(s), peers (colleagues) and herself. Using proprietary data from a mid-sized Chinese accounting firm, we find that employees manipulate their ratings to peers: they grant better ratings to their less qualified peers while giving poorer ratings to their more qualified peers, compared with evaluations from employees who are not peers. In addition, this manipulation is mostly done by employees who themselves are less qualified. Altogether, this implies that more-qualified employees “lose” from the 360-degree evaluation scheme, and we show that their promotion chances would be (slightly) higher under the traditional “top-down” scheme in which their performance ratings is based only on the appraisal of their superiors. We discuss implications for improving a 360-degree performance evaluation system.

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)