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: "structural balance and opinion separation in trust mistrust social networks"
  Abstract: Structural balance theory has been developed in sociology and psychology to explain how interacting agents, for example, countries, political parties, opinionated individuals, with mixed trust and mistrust relationships evolve into polarized camps. Recent results have shown that structural balance is necessary for polarization in networks with fixed, strongly connected neighbor relationships when the opinion dynamics are described by DeGroot-type averaging rules. We develop this line of research in this paper in two steps. First, we consider fixed, not necessarily strongly connected, neighbor relationships. It is shown that if the network includes a strongly connected subnetwork containing mistrust, which influences the rest of the network, then no opinion clustering is possible when that subnetwork is not structurally balanced; all of the opinions become neutralized in the end. In contrast, it is shown that when that subnetwork is indeed structurally balanced, the agents of the subnetwork evolve into two polarized camps and the opinions of all other agents in the network spread between these two polarized opinions. Second, we consider time-varying neighbor relationships. We show that the opinion separation criteria carry over if the conditions for fixed graphs are extended to joint graphs. The results are developed for both discrete-time and continuous-time models.

Connected through hyperedge HE-1 (induced by source paper "visualizing structural balance in signed networks"):
  with members:
    - "discovering polarized communities in signed networks"
    - "reconciliation k median clustering with non polarized representatives"
    - "measuring partial balance in signed networks"
    - "computing the line index of balance using integer programming optimisation"
    - "a survey of signed network mining in social media"

Connected through hyperedge HE-2 (induced by source paper "competitive information spread with confirmation bias in cyber social networks"):
  with members:
    - "spread of information with confirmation bias in cyber social networks"
    - "optimal investment strategies for competing camps in a social network a broad framework"
    - "opinion dynamics in social networks with hostile camps consensus vs polarization"

Connected through hyperedge HE-3 (induced by source paper "consensus and disagreement of heterogeneous belief systems in influence networks"):
  with members:
    - "a tutorial on modeling and analysis of dynamic social networks part i"
    - "novel multidimensional models of opinion dynamics in social networks"
    - "a psychologically motivated model of opinion change with applications to american politics"
    - "game theoretic analysis of the hegselmann krause model for opinion dynamics in finite dimensions"
    - "biased assimilation homophily and the dynamics of polarization"

Connected through hyperedge HE-4 (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"
    - "opinion dynamics in social networks with hostile camps consensus vs polarization"

Connected through hyperedge HE-5 (induced by source paper "differential inequalities in multi agent coordination and opinion dynamics modeling"):
  with members:
    - "a tutorial on modeling and analysis of dynamic social networks part i"
    - "opinion dynamics in social networks with hostile camps consensus vs polarization"
    - "distributed surrounding design of target region with complex adjacency matrices"
    - "biased assimilation homophily and the dynamics of polarization"
    - "reaching an optimal consensus dynamical systems that compute intersections of convex sets"
    - "convergence of type symmetric and cut balanced consensus seeking systems extended version"
    - "the role of persistent graphs in the agreement seeking of social networks"

Connected through hyperedge HE-6 (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"
    - "distributed evaluation and convergence of self appraisals in 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-7 (induced by source paper "dynamics over signed networks"):
  with members:
    - "opinion dynamics in social networks with hostile camps consensus vs polarization"
    - "consensus over random graph processes network borel cantelli lemmas for almost sure convergence"
    - "convergence and state reconstruction of time varying multi agent systems from complete observability theory"
    - "the evolution of beliefs over signed social networks"
    - "how agreement and disagreement evolve over random dynamic networks"
    - "distributed consensus algorithms in sensor networks quantized data and random link failures"

Connected through hyperedge HE-8 (induced by source paper "persistent flows and non reciprocal interactions in deterministic networks"):
  with members:
    - "consensus over random graph processes network borel cantelli lemmas for almost sure convergence"
    - "continuous time consensus under non instantaneous reciprocity"
    - "how agreement and disagreement evolve over random dynamic networks"
    - "convergence of type symmetric and cut balanced consensus seeking systems extended version"
    - "the role of persistent graphs in the agreement seeking of social networks"

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)