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: "narrow sieves for parameterized paths and packings"
  Abstract: We present randomized algorithms for some well-studied, hard combinatorial problems: the k-path problem, the p-packing of q-sets problem, and the q-dimensional p-matching problem. Our algorithms solve these problems with high probability in time exponential only in the parameter (k, p, q) and using polynomial space; the constant bases of the exponentials are significantly smaller than in previous works. For example, for the k-path problem the improvement is from 2 to 1.66. We also show how to detect if a d-regular graph admits an edge coloring with $d$ colors in time within a polynomial factor of O(2^{(d-1)n/2}). #R##N#Our techniques build upon and generalize some recently published ideas by I. Koutis (ICALP 2009), R. Williams (IPL 2009), and A. Bj\"orklund (STACS 2010, FOCS 2010).

Connected through hyperedge HE-1 (induced by source paper "finding temporal patterns using algebraic fingerprints"):
  with members:
    - "approximately counting and sampling small witnesses using a colourful decision oracle"
    - "the computational complexity of finding temporal paths under waiting time constraints"
    - "motivo fast motif counting via succinct color coding and adaptive sampling"
    - "mining frequent patterns in evolving graphs"
    - "motifs in temporal networks"
    - "a motif based approach for identifying controversy"
    - "stream graphs and link streams for the modeling of interactions over time"
    - "higher order organization of complex networks"

Connected through hyperedge HE-2 (induced by source paper "parameterized valiant s classes"):
  with members:
    - "a fixed parameter perspective on bis"
    - "homomorphisms are a good basis for counting small subgraphs"
    - "counting restricted homomorphisms via m obius inversion over matroid lattices"
    - "on the relative power of reduction notions in arithmetic circuit complexity"
    - "some complete and intermediate polynomials in algebraic complexity theory"
    - "algebraic complexity classes"
    - "complexity of counting subgraphs only the boundedness of the vertex cover number counts"
    - "paradigms for parameterized enumeration"

Connected through hyperedge HE-3 (induced by source paper "going far from degeneracy"):
  with members:
    - "faster deterministic parameterized algorithm for k path"
    - "raising the bar for vertex cover fixed parameter tractability above a higher guarantee"
    - "a randomized algorithm for long directed cycle"
    - "polynomial kernels for lambda extendible properties parameterized above the poljak turz ik bound"
    - "faster parameterized algorithms using linear programming"
    - "vertex cover problem parameterized above and below tight bounds"
    - "solving max r sat above a tight lower bound"

Connected through hyperedge HE-4 (induced by source paper "the maximum binary tree problem"):
  with members:
    - "improved inapproximability results for maximum k colorable subgraph"

Connected through hyperedge HE-5 (induced by source paper "extensor coding"):
  with members:
    - "homomorphisms are a good basis for counting small subgraphs"
    - "a dichotomy theorem for nonuniform csps"
    - "the proof of csp dichotomy conjecture"
    - "clifford algebras meet tree decompositions"
    - "complexity of counting subgraphs only the boundedness of the vertex cover number counts"
    - "mixing color coding related techniques"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "determinant sums for undirected hamiltonicity"

Connected through hyperedge HE-6 (induced by source paper "faster deterministic parameterized algorithm for k path"):
  with members:
    - "finding detours is fixed parameter tractable"
    - "parameterized approximation algorithms for packing problems"
    - "representative families a unified tradeoff based approach"
    - "mixing color coding related techniques"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"

Connected through hyperedge HE-7 (induced by source paper "tight lower bounds for list edge coloring"):
  with members:
    - "tight lower bounds on graph embedding problems"
    - "known algorithms for edge clique cover are probably optimal"

Connected through hyperedge HE-8 (induced by source paper "designing deterministic polynomial space algorithms by color coding multivariate polynomials"):
  with members:
    - "directed hamiltonicity and out branchings via generalized laplacians"
    - "spotting trees with few leaves"
    - "complexity results for rainbow matchings"
    - "fast algorithms for parameterized problems with relaxed disjointness constraints"
    - "representative families a unified tradeoff based approach"
    - "mixing color coding related techniques"
    - "abusing the tutte matrix an algebraic instance compression for the k set cycle problem"
    - "determinant sums for undirected hamiltonicity"

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)