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: "distributed evaluation and convergence of self appraisals in social networks"
  Abstract: We consider in this paper a networked system of opinion dynamics in continuous time, where the agents are able to evaluate their self-appraisals in a distributed way. In the model we formulate, the underlying network topology is described by a rooted digraph. For each ordered pair of agents $(i,j)$, we assign a function of self-appraisal to agent $i$, which measures the level of importance of agent $i$ to agent $j$. Thus, by communicating only with her neighbors, each agent is able to calculate the difference between her level of importance to others and others' level of importance to her. The dynamical system of self-appraisals is then designed to drive these differences to zero. We show that for almost all initial conditions, the trajectory generated by this dynamical system asymptotically converges to an equilibrium point which is exponentially stable.

Connected through hyperedge HE-1 (induced by source paper "a tutorial on modeling and analysis of dynamic social networks part i"):
  with members:
    - "on the analysis of the degroot friedkin model with dynamic relative interaction matrices"
    - "opinion evolution in time varying social influence networks with prejudiced agents"
    - "differential inequalities in multi agent coordination and opinion dynamics modeling"
    - "distributed algorithms for computation of centrality measures in complex networks"
    - "novel multidimensional models of opinion dynamics in social networks"
    - "open multi agent systems gossiping with random arrivals and departures"
    - "active sensing of social networks"
    - "structural balance and opinion separation in trust mistrust social networks"

Connected through hyperedge HE-2 (induced by source paper "a distributed algorithm for least square solutions of linear equations"):
  with members:
    - "decentralized gradient algorithm for solution of a linear equation"
    - "on the stability and convergence of a class of consensus systems with a nonlinear input"
    - "a distributed algorithm for solving a linear algebraic equation"
    - "distributed constrained optimization by consensus based primal dual perturbation method"
    - "a distributed algorithm for solving positive definite linear equations over networks with membership dynamics"
    - "average consensus on general strongly connected digraphs"
    - "fast distributed gradient methods"
    - "distributed parameter estimation in sensor networks nonlinear observation models and imperfect communication"

Connected through hyperedge HE-3 (induced by source paper "opinion evolution in time varying social influence networks with prejudiced agents"):
  with members:
    - "a tutorial on modeling and analysis of dynamic social networks part i"
    - "structural balance and opinion separation in trust mistrust social networks"
    - "two steps to obfuscation"
    - "ergodic randomized algorithms and dynamics over networks"
    - "gossips and prejudices ergodic randomized dynamics in social networks"
    - "how bad is forming your own opinion"

Connected through hyperedge HE-4 (induced by source paper "evolution of social power in social networks with dynamic topology"):
  with members:
    - "modification of social dominance in social networks by selective adjustment of interpersonal weights"
    - "on the analysis of the degroot friedkin model with dynamic relative interaction matrices"
    - "nonlinear mapping convergence and application to social networks"
    - "novel multidimensional models of opinion dynamics in social networks"
    - "opinion dynamics in social networks with hostile camps consensus vs polarization"
    - "game theoretic analysis of the hegselmann krause model for opinion dynamics in finite dimensions"

Connected through hyperedge HE-5 (induced by source paper "stability theory of stochastic models in opinion dynamics"):
  with members:
    - "novel multidimensional models of opinion dynamics in social networks"
    - "a contractive approach to separable lyapunov functions for monotone systems"
    - "differentially positive systems"
    - "a differential lyapunov framework for contraction analysis"

Connected through hyperedge HE-6 (induced by source paper "on the analysis of the degroot friedkin model with dynamic relative interaction matrices"):
  with members:
    - "game theoretic analysis of the hegselmann krause model for opinion dynamics in finite dimensions"
    - "the role of persistent graphs in the agreement seeking of social networks"

Connected through hyperedge HE-7 (induced by source paper "modification of social dominance in social networks by selective adjustment of interpersonal weights"):
  with members:
    - "evolution of social power in social networks with dynamic topology"

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.SY(Systems and Control)