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: "the i o complexity of strassen s matrix multiplication with recomputation"
  Abstract: A tight Ω((n/ √ M )2 M ) lower bound is derived on the I/O complexity of Strassen’s algorithm to multiply two n × n matrices, in a two-level storage hierarchy with M words of fast memory. A proof technique is introduced, which exploits the Grigoriev’s flow of the matrix multiplication function as well as some combinatorial properties of the Strassen computational directed acyclic graph (CDAG). Applications to parallel computation are also developed. The result generalizes a similar bound previously obtained under the constraint of no-recomputation, that is, that intermediate results cannot be computed more than once. For this restricted case, another lower bound technique is presented, which leads to a simpler analysis of the I/O complexity of Strassen’s algorithm and can be readily extended to other “Strassen-like” algorithms. 1998 ACM Subject Classification F.2.1 Numerical Algorithms and Problems

Connected through hyperedge HE-1 (induced by source paper "the i o complexity of hybrid algorithms for square matrix multiplication"):
  with members:
    - "powers of tensors and fast matrix multiplication"
    - "communication lower bounds for distributed memory computations"
    - "the input output complexity of sparse matrix multiplication"
    - "communication lower bounds for distributed memory computations"
    - "graph expansion analysis for communication costs of fast rectangular matrix multiplication"
    - "minimizing communication in linear algebra"
    - "communication optimal parallel and sequential cholesky decomposition"

Connected through hyperedge HE-2 (induced by source paper "on the i o complexity of hybrid algorithms for integer multiplication"):
  with members:
    - "faster integer multiplication using short lattice vectors"
    - "fast integer multiplication using generalized fermat primes"
    - "communication lower bounds for distributed memory computations"
    - "even faster integer multiplication"
    - "communication lower bounds for distributed memory computations"

Connected through hyperedge HE-3 (induced by source paper "communication lower bounds of bilinear algorithms for symmetric tensor contractions"):
  with members:
    - "minimizing communication in linear algebra"

Connected through hyperedge HE-4 (induced by source paper "generating families of practical fast matrix multiplication algorithms"):
  with members:
    - "improving the numerical stability of fast matrix multiplication"
    - "a framework for practical parallel fast matrix multiplication"
    - "communication optimal parallel algorithm for strassen s matrix multiplication"

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)