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: "representative families a unified tradeoff based approach"
  Abstract: Let $M=(E,{\cal I})$ be a matroid, and let $\cal S$ be a family of subsets of size $p$ of $E$. A subfamily $\widehat{\cal S}\subseteq{\cal S}$ represents ${\cal S}$ if for every pair of sets $X\in{\cal S}$ and $Y\subseteq E\setminus X$ such that $X\cup Y\in{\cal I}$, there is a set $\widehat{X}\in\widehat{\cal S}$ disjoint from $Y$ such that $\widehat{X}\cup Y\in{\cal I}$. Fomin et al. (Proc. ACM-SIAM Symposium on Discrete Algorithms, 2014) introduced a powerful technique for fast computation of representative families for uniform matroids. In this paper, we show that this technique leads to a unified approach for substantially improving the running times of parameterized algorithms for some classic problems. This includes, among others, $k$-Partial Cover, $k$-Internal Out-Branching, and Long Directed Cycle. Our approach exploits an interesting tradeoff between running time and the size of the representative families.

Connected through hyperedge HE-1 (induced by source paper "hitting long directed cycles is fixed parameter tractable"):
  with members:
    - "reducing cmso model checking to highly connected graphs"
    - "dag width and circumference of digraphs"
    - "on feedback vertex set new measure and new structures"
    - "a randomized algorithm for long directed cycle"
    - "representative sets of product families"
    - "the directed grid theorem"
    - "faster deterministic feedback vertex set"
    - "directed subset feedback vertex set is fixed parameter tractable"

Connected through hyperedge HE-2 (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"
    - "mixing color coding related techniques"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "narrow sieves for parameterized paths and packings"

Connected through hyperedge HE-3 (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"
    - "mixing color coding related techniques"
    - "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-4 (induced by source paper "on the complexity of finding internally vertex disjoint long directed paths"):
  with members:
    - "finding two edge disjoint paths with length constraints"
    - "a randomized algorithm for long directed cycle"
    - "kernelization lower bounds by cross composition"
    - "finding topological subgraphs is fixed parameter tractable"

Connected through hyperedge HE-5 (induced by source paper "spotting trees with few leaves"):
  with members:
    - "representative sets of product families"
    - "a 2k vertex kernel for maximum internal spanning tree"
    - "mixing color coding related techniques"
    - "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"

Connected through hyperedge HE-6 (induced by source paper "parameterized approximation algorithms for packing problems"):
  with members:
    - "representative sets of product families"
    - "mixing color coding related techniques"
    - "improved approximation for 3 dimensional matching via bounded pathwidth local search"
    - "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-7 (induced by source paper "finding two edge disjoint paths with length constraints"):
  with members:
    - "representative sets of product families"
    - "mixing color coding related techniques"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "kernelization lower bounds by cross composition"

Connected through hyperedge HE-8 (induced by source paper "a randomized algorithm for long directed cycle"):
  with members:
    - "representative sets of product families"
    - "mixing color coding related techniques"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"

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)