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: "mixing color coding related techniques"
  Abstract: Narrow sieves, representative sets and divide-and-color are three breakthrough color coding-related techniques, which led to the design of extremely fast parameterized algorithms. We present a novel family of strategies for applying mixtures of them. This includes: (a) a mix of representative sets and narrow sieves; (b) a faster computation of representative sets under certain separateness conditions, mixed with divide-and-color and a new technique, "balanced cutting"; (c) two mixtures of representative sets, iterative compression and a new technique, "unbalanced cutting". We demonstrate our strategies by obtaining, among other results, significantly faster algorithms for $k$-Internal Out-Branching and Weighted 3-Set $k$-Packing, and a framework for speeding-up the previous best deterministic algorithms for $k$-Path, $k$-Tree, $r$-Dimensional $k$-Matching, Graph Motif and Partial Cover.

Connected through hyperedge HE-1 (induced by source paper "parameterized complexity of partial scheduling"):
  with members:
    - "interval scheduling and colorful independent sets"

Connected through hyperedge HE-2 (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"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "narrow sieves for parameterized paths and packings"
    - "determinant sums for undirected hamiltonicity"

Connected through hyperedge HE-3 (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"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "narrow sieves for parameterized paths and packings"

Connected through hyperedge HE-4 (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"
    - "abusing the tutte matrix an algebraic instance compression for the k set cycle problem"
    - "narrow sieves for parameterized paths and packings"
    - "determinant sums for undirected hamiltonicity"

Connected through hyperedge HE-5 (induced by source paper "finding hitting and packing cycles in subexponential time on unit disk graphs"):
  with members:
    - "subexponential parameterized algorithms for planar and apex minor free graphs via low treewidth pattern covering"
    - "bidimensionality and kernels"
    - "approximation algorithms for polynomial expansion and low density graphs"
    - "bidimensionality and geometric graphs"
    - "narrow sieves for parameterized paths and packings"
    - "bidimensionality and eptas"
    - "minimum clique partition in unit disk graphs"
    - "improved approximation algorithms for geometric set cover"

Connected through hyperedge HE-6 (induced by source paper "directed hamiltonicity and out branchings via generalized laplacians"):
  with members:
    - "on problems as hard as cnf sat"
    - "spotting trees with few leaves"
    - "fast algorithms for parameterized problems with relaxed disjointness constraints"
    - "faster exponential time algorithms in graphs of bounded average degree"
    - "the parity of directed hamiltonian cycles"
    - "a new direction for counting perfect matchings"
    - "below all subsets for some permutational counting problems"
    - "fast hamiltonicity checking via bases of perfect matchings"

Connected through hyperedge HE-7 (induced by source paper "finding detours is fixed parameter tractable"):
  with members:
    - "improved bounds for the excluded grid theorem"
    - "the directed grid theorem"
    - "polynomial bounds for the grid minor theorem"
    - "vertex cover problem parameterized above and below tight bounds"
    - "solving max r sat above a tight lower bound"

Connected through hyperedge HE-8 (induced by source paper "spotting trees with few leaves"):
  with members:
    - "representative sets of product families"
    - "representative families a unified tradeoff based approach"
    - "a 2k vertex kernel for maximum internal spanning tree"
    - "solving connectivity problems parameterized by treewidth in single exponential time"
    - "narrow sieves for parameterized paths and packings"
    - "determinant sums for undirected hamiltonicity"
    - "algorithm for finding k vertex out trees and its application to k internal out branching problem"
    - "a linear vertex kernel for maximum internal spanning tree"

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)