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: "real world applications of machine learning techniques over large mobile subscriber datasets"
  Abstract: Abstract Communication Service Providers (CSPs) are in a unique position to utilize theirvast transactional data assets generated from interactions of subscribers with net-work elements as well as with other subscribers. CSPs could leverage its dataassets for a gamut of applications such as service personalization, predictive offermanagement, loyalty management, revenue forecasting, network capacity plan-ning, product bundle optimization and churn management to gain signiﬁcant com-petitive advantage. However, due to the sheer data volume, variety, velocity andveracity of mobile subscriber datasets, sophisticated data analytics techniques andframeworks are necessary to derive actionable insights in a useable timeframe. Inthis paper, we describe our journey from a relational database management system(RDBMS) based campaign management solution which allowed data scientistsand marketers to use hand-written rules for service personalization and targetedpromotions to a distributed Big Data Analytics platform, capable of performinglarge scale machine learning and data mining to deliver real time service person-alization, predictive modelling and product optimization. Our work involves acareful blend of technology, processes and best practices, which facilitate man-machine collaboration and continuous experimentation to derive measurable eco-nomic value from data. Our platform has a reach of more than 500 million mobilesubscribers worldwide, delivering over 1 billion personalized recommendationsannually, processing a total data volume of 64 Petabytes, corresponding to 8.5trillion events.

Connected through hyperedge HE-1 (induced by source paper "performing highly accurate predictions through convolutional networks for actual telecommunication challenges"):
  with members:
    - "increasing loyalty using predictive modeling in business to business telecommunication"
    - "delving deep into rectifiers surpassing human level performance on imagenet classification"
    - "going deeper with convolutions"
    - "very deep convolutional networks for large scale image recognition"
    - "two stream convolutional networks for action recognition in videos"
    - "efficient estimation of word representations in vector space"
    - "distributed representations of words and phrases and their compositionality"
    - "representation learning a review and new perspectives"

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)