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: "mesh algorithms for pde with sieve i mesh distribution"
  Abstract: We have developed a new programming framework, called Sieve, to support parallel numerical PDE algorithms operating over distributed meshes. We have also developed a reference implementation of Sieve in C++ as a library of generic algorithms operating on distributed containers conforming to the Sieve interface. Sieve makes instances of the incidence relation, or \emph{arrows}, the conceptual first-class objects represented in the containers. Further, generic algorithms acting on this arrow container are systematically used to provide natural geometric operations on the topology and also, through duality, on the data. Finally, coverings and duality are used to encode not only individual meshes, but all types of hierarchies underlying PDE data structures, including multigrid and mesh partitions. #R##N#In order to demonstrate the usefulness of the framework, we show how the mesh partition data can be represented and manipulated using the same fundamental mechanisms used to represent meshes. We present the complete description of an algorithm to encode a mesh partition and then distribute a mesh, which is independent of the mesh dimension, element shape, or embedding. Moreover, data associated with the mesh can be similarly distributed with exactly the same algorithm. The use of a high level of abstraction within the Sieve leads to several benefits in terms of code reuse, simplicity, and extensibility. We discuss these benefits and compare our approach to other existing mesh libraries.

Connected through hyperedge HE-1 (induced by source paper "non conforming mesh refinement for high order finite elements"):
  with members:
    - "complex additive geometric multilevel solvers for helmholtz equations on spacetrees"
    - "recursive algorithms for distributed forests of octrees"
    - "support for non conformal meshes in petsc s dmplex interface"

Connected through hyperedge HE-2 (induced by source paper "pcpatch software for the topological construction of multigrid relaxation methods"):
  with members:
    - "firedrake automating the finite element method by composing abstractions"
    - "exposing and exploiting structure optimal code generation for high order finite element methods"
    - "flexible scalable mesh and data management using petsc dmplex"

Connected through hyperedge HE-3 (induced by source paper "scalable computation of thermomechanical turbomachinery problems"):
  with members:
    - "dolfin automated finite element computing"
    - "pt scotch a tool for efficient parallel graph ordering"

Connected through hyperedge HE-4 (induced by source paper "composable block solvers for the four field double porosity permeability model"):
  with members:
    - "a stabilized mixed discontinuous galerkin formulation for double porosity permeability model"
    - "a scalable variational inequality approach for flow through porous media models with pressure dependent viscosity"
    - "a domain specific language for the hybridization and static condensation of finite element methods"
    - "comparative study of finite element methods using the time accuracy size tas spectrum analysis"
    - "modeling flow in porous media with double porosity permeability a stabilized mixed formulation error analysis and numerical solutions"
    - "a performance spectrum for parallel computational frameworks that solve pdes"
    - "tsfc a structure preserving form compiler"
    - "firedrake automating the finite element method by composing abstractions"

Connected through hyperedge HE-5 (induced by source paper "comparative study of finite element methods using the time accuracy size tas spectrum analysis"):
  with members:
    - "a scalable variational inequality approach for flow through porous media models with pressure dependent viscosity"
    - "a parallel edge orientation algorithm for quadrilateral meshes"
    - "a stochastic performance model for pipelined krylov methods"
    - "flexible scalable mesh and data management using petsc dmplex"

Connected through hyperedge HE-6 (induced by source paper "solver composition across the pde linear algebra barrier"):
  with members:
    - "extreme scale multigrid components within petsc"

Connected through hyperedge HE-7 (induced by source paper "firedrake automating the finite element method by composing abstractions"):
  with members:
    - "a structure exploiting numbering algorithm for finite elements on extruded meshes and its performance evaluation in firedrake"
    - "efficient mesh management in firedrake using petsc dmplex"
    - "cross loop optimization of arithmetic intensity for finite element local assembly"
    - "a framework for automated pde constrained optimisation"
    - "automated derivation of the adjoint of high level transient finite element programs"
    - "dolfin automated finite element computing"
    - "optimizations for quadrature representations of finite element tensors through automated code generation"

Connected through hyperedge HE-8 (induced by source paper "large scale optimization based non negative computational framework for diffusion equations parallel implementation and performance studies"):
  with members:
    - "flexible scalable mesh and data management using petsc dmplex"
    - "on mesh restrictions to satisfy comparison principles maximum principles and the non negative constraint recent developments and new results"
    - "a numerical framework for diffusion controlled bimolecular reactive systems to enforce maximum principles and the non negative constraint"
    - "achieving high performance with unified residual evaluation"
    - "a numerical methodology for enforcing maximum principles and the non negative constraint for transient diffusion equations"
    - "enforcing the non negativity constraint and maximum principles for diffusion with decay on general computational grids"
    - "non negative mixed finite element formulations for a tensorial diffusion equation"

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.CE(Computational Engineering, Finance, and Science)