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: "social decision making with multi relational networks and grammar based particle swarms"
  Abstract: Social decision support systems are able to aggregate the local perspectives of a diverse group of individuals into a global social decision. This paper presents a multi-relational network ontology and grammar-based particle swarm algorithm capable of aggregating the decisions of millions of individuals. This framework supports a diverse problem space and a broad range of vote aggregation algorithms. These algorithms account for individual expertise and representation across different domains of the group problem space. Individuals are able to pose and categorize problems, generate potential solutions, choose trusted representatives, and vote for particular solutions. Ultimately, via a social decision making algorithm, the system aggregates all the individual votes into a single collective decision

Connected through hyperedge HE-1 (induced by source paper "exposing multi relational networks to single relational network analysis algorithms"):
  with members:
    - "interpretations of the web of data"
    - "grammar based random walkers in semantic networks"
    - "a multi relational network to support the scholarly communication process"
    - "co authorship networks in the digital library research community"

Connected through hyperedge HE-2 (induced by source paper "grammar based geodesics in semantic networks"):
  with members:
    - "exposing multi relational networks to single relational network analysis algorithms"
    - "grammar based random walkers in semantic networks"
    - "mapping semantic networks to undirected networks"
    - "towards usage based impact metrics first results from the mesur project"

Connected through hyperedge HE-3 (induced by source paper "automatic metadata generation using associative networks"):
  with members:
    - "grammar based random walkers in semantic networks"
    - "toward alternative metrics of journal impact a comparison of download and citation data"
    - "machine learning in automated text categorization"

Connected through hyperedge HE-4 (induced by source paper "revisiting the age of enlightenment from a collective decision making systems perspective"):
  with members:
    - "a social network for societal scale decision making systems"

Connected through hyperedge HE-5 (induced by source paper "a multi relational network to support the scholarly communication process"):
  with members:
    - "mapping the bid behavior of conference referees"
    - "the convergence of digital libraries and the peer review process"
    - "co authorship networks in the digital library research community"
    - "toward alternative metrics of journal impact a comparison of download and citation data"

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)