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: "feedback loops of attention in peer production"
  Abstract: A significant percentage of online content is now published and consumed via the mechanism of crowdsourcing. While any user can contribute to these forums, a disproportionately large percentage of the content is submitted by very active and devoted users, whose continuing participation is key to the sites' success. As we show, people's propensity to keep participating increases the more they contribute, suggesting motivating factors which increase over time. This paper demonstrates that submitters who stop receiving attention tend to stop contributing, while prolific contributors attract an ever increasing number of followers and their attention in a feedback loop. We demonstrate that this mechanism leads to the observed power law in the number of contributions per user and support our assertions by an analysis of hundreds of millions of contributions to top content sharing websites Digg.com and Youtube.com.

Connected through hyperedge HE-1 (induced by source paper "like comment repin user interaction on pinterest"):
  with members:
    - "the pin bang theory discovering the pinterest world"
    - "towards unbiased bfs sampling"
    - "social networks that matter twitter under the microscope"

Connected through hyperedge HE-2 (induced by source paper "laboratories of oligarchy how the iron law extends to peer production"):
  with members:
    - "coase s penguin or linux and the nature of the firm"

Connected through hyperedge HE-3 (induced by source paper "how does market concern derived from the internet affect oil prices"):
  with members:
    - "twitter mood predicts the stock market"
    - "social networks that matter twitter under the microscope"

Connected through hyperedge HE-4 (induced by source paper "the decentralized structure of collective attention on the web"):
  with members:
    - "the accelerating growth of online tagging systems"
    - "information contagion an empirical study of the spread of news on digg and twitter social networks"
    - "agents bookmarks and clicks a topical model of web navigation"
    - "collective dynamics of social annotation"
    - "novelty and collective attention"
    - "topical interests and the mitigation of search engine bias"

Connected through hyperedge HE-5 (induced by source paper "heterogeneity and allometric growth of human collaborative tagging behavior"):
  with members:
    - "the accelerating growth of online tagging systems"
    - "collective dynamics of social annotation"
    - "vocabulary growth in collaborative tagging systems"

Connected through hyperedge HE-6 (induced by source paper "the accelerating growth of online tagging systems"):
  with members:
    - "collective dynamics of social annotation"

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)