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: "diffusion in social networks with competing products"
  Abstract: We introduce a new threshold model of social networks, in which the nodes influenced by their neighbours can adopt one out of several alternatives. We characterize the graphs for which adoption of a product by the whole network is possible (respectively necessary) and the ones for which a unique outcome is guaranteed. These characterizations directly yield polynomial time algorithms that allow us to determine whether a given social network satisfies one of the above properties. #R##N#We also study algorithmic questions for networks without unique outcomes. We show that the problem of computing the minimum possible spread of a product is NP-hard to approximate with an approximation ratio better than $\Omega(n)$, in contrast to the maximum spread, which is efficiently computable. We then move on to questions regarding the behavior of a node with respect to adopting some (resp. a given) product. We show that the problem of determining whether a given node has to adopt some (resp. a given) product in all final networks is co-NP-complete.

Connected through hyperedge HE-1 (induced by source paper "coordination games on weighted directed graphs"):
  with members:
    - "self stabilization through the lens of game theory"
    - "efficient local search in coordination games on graphs"
    - "coordination games on directed graphs"
    - "efficient equilibria in polymatrix coordination games"
    - "existence of stability in hedonic coalition formation games"
    - "a classification of weakly acyclic games"
    - "on dynamics in selfish network creation"
    - "social network games"

Connected through hyperedge HE-2 (induced by source paper "on multi cascade influence maximization model hardness and algorithmic framework"):
  with members:
    - "on misinformation containment in online social networks"
    - "balancing information exposure in social networks"
    - "distributed rumor blocking with multiple positive cascades"
    - "an efficient randomized algorithm for rumor blocking in online social networks"
    - "almost polynomial ratio eth hardness of approximating densest k subgraph"
    - "stop and stare optimal sampling algorithms for viral marketing in billion scale networks"
    - "correlated cascades compete or cooperate"
    - "from competition to complementarity comparative influence diffusion and maximization"

Connected through hyperedge HE-3 (induced by source paper "balancing spreads of influence in a social network"):
  with members:
    - "coverage centrality maximization in undirected networks"
    - "tell me something my friends do not know diversity maximization in social networks"
    - "political discourse on social media echo chambers gatekeepers and the price of bipartisanship"
    - "maximizing the diversity of exposure in a social network"
    - "balancing information exposure in social networks"
    - "almost polynomial ratio eth hardness of approximating densest k subgraph"
    - "the densest k subhypergraph problem"
    - "from competition to complementarity comparative influence diffusion and maximization"

Connected through hyperedge HE-4 (induced by source paper "preserving privacy enables coexistence equilibrium of competitive diffusion in social networks"):
  with members:
    - "make up your mind the price of online queries in differential privacy"
    - "the value of privacy strategic data subjects incentive mechanisms and fundamental limits"
    - "competitive diffusion in social networks quality or seeding"
    - "prince privacy preserving mechanisms for influence diffusion in online social networks"
    - "virality prediction and community structure in social networks"
    - "evolution of social attribute networks measurements modeling and implications using google"
    - "competitive contagion in networks"

Connected through hyperedge HE-5 (induced by source paper "balancing information exposure in social networks"):
  with members:
    - "reducing controversy by connecting opposing views"
    - "measuring online social bubbles"
    - "echo chambers in the age of misinformation"

Connected through hyperedge HE-6 (induced by source paper "coordination games on directed graphs"):
  with members:
    - "a faster tableau for ctl"
    - "a faster tableau for ctl"
    - "graphical models for game theory"
    - "social network games with obligatory product selection"
    - "social network games"

Connected through hyperedge HE-7 (induced by source paper "coordination games on graphs"):
  with members:
    - "social network games with obligatory product selection"
    - "existence of stability in hedonic coalition formation games"
    - "social network games"
    - "stable partitions in additively separable hedonic games"
    - "optimal partitions in additively separable hedonic games"

Connected through hyperedge HE-8 (induced by source paper "stars and celebrities a network creation game"):
  with members:
    - "network creation games think global act local"
    - "the max distance network creation game on general host graphs"
    - "on the structure of equilibria in basic network formation"
    - "bounded distance network creation games"
    - "the price of anarchy in cooperative network creation games"

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.SI(Social and Information Networks)