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: "impacts of culture and socio economic circumstances on users behavior and mobile broadband technology diffusion trends"
  Abstract: The use of Internet and Internet-based services on PCs, Laptops, Net Pads, Mobile Phones, PDAs etc have not only changed the global economy but also the way people communicate and their life styles. It also has evolved people from different origins, cultures, beliefs across the national boundaries. As a result it has become an absolute necessity to address the cross-cultural issues of information systems (IS) reflecting the user behaviours and influencing the way the mobile broadband technology is being accepted as well as the way it is changing the life styles of different groups of people. This paper reports on an on-going research effort which studies the impacts of culture and socio-economic circumstances on users' behavior and mobile broadband technology diffusion trends.

Connected through hyperedge HE-1 (induced by source paper "cross cultural usability issues in e m learning"):
  with members:
    - "mobile academy a ubiquitous mobile learning mlearning platform"
    - "cultural economic and societal impacts on users behaviour and mobile broadband adoption trends"
    - "a review on internet of things iot internet of everything ioe and internet of nano things iont"

Connected through hyperedge HE-2 (induced by source paper "cultural economic and societal impacts on users behaviour and mobile broadband adoption trends"):
  with members:
    - "multilingual website usability analysis based on an international user survey"
    - "user interface ui design issues for multilingual users a case study"
    - "a review on internet of things iot internet of everything ioe and internet of nano things iont"

Connected through hyperedge HE-3 (induced by source paper "user interface ui design issues for multilingual users a case study"):
  with members:
    - "multilingual website usability analysis based on an international user survey"

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.CY(Computers and Society)