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: "improved distance oracles and spanners for vertex labeled graphs"
  Abstract: Consider an undirected weighted graph G=(V,E) with |V|=n and |E|=m, where each vertex v is assigned a label from a set L of \ell labels. We show how to construct a compact distance oracle that can answer queries of the form: "what is the distance from v to the closest lambda-labeled node" for a given node v in V and label lambda in L. #R##N#This problem was introduced by Hermelin, Levy, Weimann and Yuster [ICALP 2011] where they present several results for this problem. In the first result, they show how to construct a vertex-label distance oracle of expected size O(kn^{1+1/k}) with stretch (4k - 5) and query time O(k). In a second result, they show how to reduce the size of the data structure to O(kn \ell^{1/k}) at the expense of a huge stretch, the stretch of this construction grows exponentially in k, (2^k-1). In the third result they present a dynamic vertex-label distance oracle that is capable of handling label changes in a sub-linear time. The stretch of this construction is also exponential in k, (2 3^{k-1}+1). #R##N#We manage to significantly improve the stretch of their constructions, reducing the dependence on k from exponential to polynomial (4k-5), without requiring any tradeoff regarding any of the other variables. #R##N#In addition, we introduce the notion of vertex-label spanners: subgraphs that preserve distances between every node v and label lambda. We present an efficient construction for vertex-label spanners with stretch-size tradeoff close to optimal.

Connected through hyperedge HE-1 (induced by source paper "conditional lower bounds for space time tradeoffs"):
  with members:
    - "how hard is it to find honest witnesses"
    - "unifying and strengthening hardness for dynamic problems via the online matrix vector multiplication conjecture"
    - "clustered integer 3sum via additive combinatorics"
    - "subtree isomorphism revisited"
    - "if the current clique algorithms are optimal so is valiant s parser"
    - "quadratic conditional lower bounds for string problems and dynamic time warping"
    - "why walking the dog takes time frechet distance has no strongly subquadratic algorithms unless seth fails"
    - "dynamic set intersection"

Connected through hyperedge HE-2 (induced by source paper "succinct data structure for nearest colored node in a tree"):
  with members:
    - "efficient vertex label distance oracles for planar graphs"
    - "compressed subsequence matching and packed tree coloring"
    - "succinct representation of labeled trees"
    - "the power of dynamic distance oracles efficient dynamic algorithms for the steiner tree"
    - "new lower and upper bounds for representing sequences"
    - "optimal succinctness for range minimum queries"

Connected through hyperedge HE-3 (induced by source paper "unifying and strengthening hardness for dynamic problems via the online matrix vector multiplication conjecture"):
  with members:
    - "improved algorithms for decremental single source reachability on directed graphs"
    - "space and time efficient algorithm for maintaining dense subgraphs on one pass dynamic streams"
    - "decremental single source shortest paths on undirected graphs in near linear total update time"
    - "powers of tensors and fast matrix multiplication"
    - "sublinear time decremental algorithms for single source reachability and shortest paths on directed graphs"
    - "3sum hardness in dynamic data structures"
    - "popular conjectures imply strong lower bounds for dynamic problems"
    - "higher lower bounds from the 3sum conjecture"

Connected through hyperedge HE-4 (induced by source paper "efficient vertex label distance oracles for planar graphs"):
  with members:
    - "the power of dynamic distance oracles efficient dynamic algorithms for the steiner tree"
    - "structured recursive separator decompositions for planar graphs in linear time"
    - "approximate distance oracles with improved preprocessing time"
    - "linear space approximate distance oracles for planar bounded genus and minor free graphs"

Connected through hyperedge HE-5 (induced by source paper "higher lower bounds from the 3sum conjecture"):
  with members:
    - "improved bounds for 3sum k sum and linear degeneracy"
    - "clustered integer 3sum via additive combinatorics"
    - "cell probe lower bounds for dynamic problems via a new communication model"
    - "threesomes degenerates and love triangles"
    - "dynamic set intersection"
    - "popular conjectures imply strong lower bounds for dynamic problems"
    - "on hardness of jumbled indexing"
    - "faster all pairs shortest paths via circuit complexity"

Connected through hyperedge HE-6 (induced by source paper "3sum hardness in dynamic data structures"):
  with members:
    - "popular conjectures imply strong lower bounds for dynamic problems"
    - "on hardness of jumbled indexing"
    - "fast set intersection and two patterns matching"
    - "preprocessing chains for fast dihedral rotations is hard or even impossible"

Connected through hyperedge HE-7 (induced by source paper "dynamic steiner tree and subgraph tsp"):
  with members:
    - "online steiner tree with deletions"
    - "structured recursive separator decompositions for planar graphs in linear time"
    - "min st cut oracle for planar graphs with near linear preprocessing time"
    - "fast approximation in subspaces by doubling metric decomposition"
    - "dynamic connectivity connecting to networks and geometry"
    - "maintaining information in fully dynamic trees with top trees"

Connected through hyperedge HE-8 (induced by source paper "the power of dynamic distance oracles efficient dynamic algorithms for the steiner tree"):
  with members:
    - "online steiner tree with deletions"
    - "the power of deferral maintaining a constant competitive steiner tree online"
    - "fast approximation in subspaces by doubling metric decomposition"

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.DS(Data Structures and Algorithms)