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: "super fast 3 ruling sets"
  Abstract: A $t$-ruling set of a graph $G = (V, E)$ is a vertex-subset $S \subseteq V$ that is independent and satisfies the property that every vertex $v \in V$ is at a distance of at most $t$ from some vertex in $S$. A \textit{maximal independent set (MIS)} is a 1-ruling set. The problem of computing an MIS on a network is a fundamental problem in distributed algorithms and the fastest algorithm for this problem is the $O(\log n)$-round algorithm due to Luby (SICOMP 1986) and Alon et al. (J. Algorithms 1986) from more than 25 years ago. Since then the problem has resisted all efforts to yield to a sub-logarithmic algorithm. There has been recent progress on this problem, most importantly an $O(\log \Delta \cdot \sqrt{\log n})$-round algorithm on graphs with $n$ vertices and maximum degree $\Delta$, due to Barenboim et al. (Barenboim, Elkin, Pettie, and Schneider, April 2012, arxiv 1202.1983; to appear FOCS 2012). #R##N#We approach the MIS problem from a different angle and ask if O(1)-ruling sets can be computed much more efficiently than an MIS? As an answer to this question, we show how to compute a 2-ruling set of an $n$-vertex graph in $O((\log n)^{3/4})$ rounds. We also show that the above result can be improved for special classes of graphs such as graphs with high girth, trees, and graphs of bounded arboricity. #R##N#Our main technique involves randomized sparsification that rapidly reduces the graph degree while ensuring that every deleted vertex is close to some vertex that remains. This technique may have further applications in other contexts, e.g., in designing sub-logarithmic distributed approximation algorithms. Our results raise intriguing questions about how quickly an MIS (or 1-ruling sets) can be computed, given that 2-ruling sets can be computed in sub-logarithmic rounds.

Connected through hyperedge HE-1 (induced by source paper "distributed computation in node capacitated networks"):
  with members:
    - "distributed symmetry breaking algorithms for congested cliques"
    - "competitive routing in hybrid communication networks"
    - "further algebraic algorithms in the congested clique model and applications to graph theoretic problems"
    - "near optimal approximate shortest paths and transshipment in distributed and streaming models"
    - "derandomizing local distributed algorithms under bandwidth restrictions"
    - "algebraic methods in the congested clique"
    - "fast distributed algorithms for connectivity and mst in large graphs"
    - "construction and impromptu repair of an mst in a distributed network with o m communication"

Connected through hyperedge HE-2 (induced by source paper "deterministic distributed ruling sets of line graphs"):
  with members:
    - "improved deterministic distributed matching via rounding"
    - "symmetry breaking in the congest model time and message efficient algorithms for ruling sets"
    - "deterministic distributed edge coloring via hypergraph maximal matching"
    - "triangle finding and listing in congest networks"
    - "on derandomizing local distributed algorithms"
    - "an optimal distributed delta 1 coloring algorithm"
    - "distributed delta 1 coloring in sublogarithmic rounds"
    - "deterministic distributed delta o delta edge coloring and vertex coloring of graphs with bounded diversity"

Connected through hyperedge HE-3 (induced by source paper "distributed reconfiguration of maximal independent sets"):
  with members:
    - "reconfiguration of colorable sets in classes of perfect graphs"
    - "deterministic distributed ruling sets of line graphs"
    - "symmetry breaking in the congest model time and message efficient algorithms for ruling sets"
    - "an improved distributed algorithm for maximal independent set"
    - "the complexity of change"
    - "local computation lower and upper bounds"

Connected through hyperedge HE-4 (induced by source paper "an exponential separation between randomized and deterministic complexity in the local model"):
  with members:
    - "distributed degree splitting edge coloring and orientations"
    - "local conflict coloring"
    - "an improved distributed algorithm for maximal independent set"
    - "a lower bound for the distributed lov asz local lemma"
    - "toward more localized local algorithms removing assumptions concerning global knowledge"
    - "the locality of distributed symmetry breaking"
    - "local computation lower and upper bounds"

Connected through hyperedge HE-5 (induced by source paper "a fast network decomposition algorithm and its applications to constant time distributed computation"):
  with members:
    - "distributed symmetry breaking in hypergraphs"
    - "distributed approximation algorithms for weighted shortest paths"
    - "the locality of distributed symmetry breaking"
    - "on the locality of some np complete problems"
    - "deterministic distributed vertex coloring in polylogarithmic time"
    - "directed spanners via flow based linear programs"
    - "improved approximation for the directed spanner problem"

Connected through hyperedge HE-6 (induced by source paper "lessons from the congested clique applied to mapreduce"):
  with members:
    - "algebraic methods in the congested clique"
    - "approximation of distances and shortest paths in the broadcast congest clique"
    - "distributed approximation algorithms for weighted shortest paths"
    - "near constant time distributed algorithms on a congested clique"
    - "a super fast distributed algorithm for bipartite metric facility location"
    - "super fast distributed algorithms for metric facility location"
    - "optimal deterministic routing and sorting on the congested clique"
    - "tri tri again finding triangles and small subgraphs in a distributed setting"

Connected through hyperedge HE-7 (induced by source paper "the locality of distributed symmetry breaking"):
  with members:
    - "an improved distributed algorithm for maximal independent set"
    - "the family holiday gathering problem or fair and periodic scheduling of independent sets"
    - "toward more localized local algorithms removing assumptions concerning global knowledge"
    - "fast local computation algorithms"
    - "deterministic distributed vertex coloring in polylogarithmic time"
    - "local computation lower and upper bounds"
    - "a constructive proof of the general lovasz local lemma"

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)