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: "fashionbrain project a vision for understanding europe s fashion data universe"
  Abstract: A core business in the fashion industry is the understanding and#R##N#prediction of customer needs and trends. Search engines and social#R##N#networks are at the same time a fundamental bridge and a costly#R##N#middleman between the customer’s purchase intention and the#R##N#retailer. To better exploit Europe’s distinctive characteristics e.g.,#R##N#multiple languages, fashion and cultural differences, it is pivotal to#R##N#reduce retailers’ dependence to search engines. This goal can be#R##N#achieved by harnessing various data channels (manufacturers and#R##N#distribution networks, online shops, large retailers, social media,#R##N#market observers, call centers, press/magazines etc.) that retailers#R##N#can leverage in order to gain more insight about potential buyers,#R##N#and on the industry trends as a whole. This can enable the creation#R##N#of novel on-line shopping experiences, the detection of influencers,#R##N#and the prediction of upcoming fashion trends.#R##N#In this paper, we provide an overview of the main research#R##N#challenges and an analysis of the most promising technological#R##N#solutions that we are investigating in the FashionBrain project.

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.AI(Artificial Intelligence)