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: "topology of the immediate snapshot complexes"
  Abstract: The immediate snapshot complexes were introduced as combinatorial models for the protocol complexes in the context of theoretical distributed computing. In the previous work we have developed a formal language of witness structures in order to define and to analyze these complexes. #R##N#In this paper, we study topology of immediate snapshot complexes. It was known that these complexes are always pure and that they are pseudomanifolds. Here we prove two further independent topological properties. First, we show that immediate snapshot complexes are collapsible. Second, we show that these complexes are homeomorphic to closed balls. Specifically, given any immediate snapshot complex $P(\tr)$, we show that there exists a homeomorphism $\varphi:\da^{|\supp\tr|-1}\ra P(\tr)$, such that $\varphi(\sigma)$ is a subcomplex of $P(\tr)$, whenever $\sigma$ is a simplex in the simplicial complex $\da^{|\supp\tr|-1}$.

Connected through hyperedge HE-1 (induced by source paper "combinatorial topology of the standard chromatic subdivision and weak symmetry breaking for six processes"):
  with members:
    - "all binomial identities are orderable"
    - "weak symmetry breaking and abstract simplex paths"
    - "structure theory of flip graphs with applications to weak symmetry breaking"
    - "witness structures and immediate snapshot complexes"
    - "topology of the view complex"

Connected through hyperedge HE-2 (induced by source paper "structure theory of flip graphs with applications to weak symmetry breaking"):
  with members:
    - "combinatorial topology of the standard chromatic subdivision and weak symmetry breaking for six processes"
    - "all binomial identities are orderable"
    - "the read write protocol complex is collapsible"
    - "weak symmetry breaking and abstract simplex paths"
    - "witness structures and immediate snapshot complexes"
    - "topology of the view complex"

Connected through hyperedge HE-3 (induced by source paper "the read write protocol complex is collapsible"):
  with members:
    - "topology of the view complex"

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.DC(Distributed, Parallel, and Cluster Computing)