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: "on the transformation capability of feasible mechanisms for programmable matter"
  Abstract: In this work, we study theoretical models of \emph{programmable matter} systems. The systems under consideration consist of spherical modules, kept together by magnetic forces and able to perform two minimal mechanical operations (or movements): \emph{rotate} around a neighbor and \emph{slide} over a line. In terms of modeling, there are $n$ nodes arranged in a 2-dimensional grid and forming some initial \emph{shape}. The goal is for the initial shape $A$ to \emph{transform} to some target shape $B$ by a sequence of movements. Most of the paper focuses on \emph{transformability} questions, meaning whether it is in principle feasible to transform a given shape to another. We first consider the case in which only rotation is available to the nodes. Our main result is that deciding whether two given shapes $A$ and $B$ can be transformed to each other, is in $\mathbf{P}$. We then insist on rotation only and impose the restriction that the nodes must maintain global connectivity throughout the transformation. We prove that the corresponding transformability question is in $\mathbf{PSPACE}$ and study the problem of determining the minimum \emph{seeds} that can make feasible, otherwise infeasible transformations. Next we allow both rotations and slidings and prove universality: any two connected shapes $A,B$ of the same order, can be transformed to each other without breaking connectivity. The worst-case number of movements of the generic strategy is $\Omega(n^2)$. We improve this to $O(n)$ parallel time, by a pipelining strategy, and prove optimality of both by matching lower bounds. In the last part of the paper, we turn our attention to distributed transformations. The nodes are now distributed processes able to perform communicate-compute-move rounds. We provide distributed algorithms for a general type of transformations.

Connected through hyperedge HE-1 (induced by source paper "mobile ram and shape formation by programmable particles"):
  with members:
    - "a stochastic approach to shortcut bridging in programmable matter"
    - "on the runtime of universal coating for programmable matter"
    - "turingmobile a turing machine of oblivious mobile robots with limited visibility and its applications"
    - "line recovery by programmable particles"
    - "shape formation by programmable particles"
    - "universal coating for programmable matter"
    - "terminating distributed construction of shapes and patterns in a fair solution of automata"
    - "an algorithmic framework for shape formation problems in self organizing particle systems"

Connected through hyperedge HE-2 (induced by source paper "distributed computation and reconfiguration in actively dynamic networks"):
  with members:
    - "deleting edges to restrict the size of an epidemic in temporal networks"
    - "temporal network optimization subject to connectivity constraints"
    - "connectivity preserving network transformers"
    - "simple and efficient local codes for distributed stable network construction"
    - "naming and counting in anonymous unknown dynamic networks"
    - "the computational power of population protocols"

Connected through hyperedge HE-3 (induced by source paper "pushing lines helps efficient universal centralised transformations for programmable matter"):
  with members:
    - "on the runtime of universal coating for programmable matter"
    - "line recovery by programmable particles"
    - "shape formation by programmable particles"
    - "an algorithmic framework for shape formation problems in self organizing particle systems"
    - "simple and efficient local codes for distributed stable network construction"
    - "active self assembly of algorithmic shapes and patterns in polylogarithmic time"
    - "the computational power of population protocols"
    - "pspace completeness of sliding block puzzles and other problems through the nondeterministic constraint logic model of computation"

Connected through hyperedge HE-4 (induced by source paper "on the convergence of network systems"):
  with members:
    - "complexity theoretic aspects of expanding cellular automata"
    - "on the complexity of local graph transformations"
    - "distributed leader election and computation of local identifiers for programmable matter"
    - "a simple framework for stability analysis of state dependent networks of heterogeneous agents"
    - "computational complexity of atomic chemical reaction networks"
    - "stream graphs and link streams for the modeling of interactions over time"
    - "on a natural dynamics for linear programming"
    - "simple and efficient local codes for distributed stable network construction"

Connected through hyperedge HE-5 (induced by source paper "fault tolerant network constructors"):
  with members:
    - "on the runtime of universal coating for programmable matter"
    - "shape formation by programmable particles"
    - "population protocols with faulty interactions the impact of a leader"
    - "terminating distributed construction of shapes and patterns in a fair solution of automata"
    - "simple and efficient local codes for distributed stable network construction"
    - "the computational power of population protocols"

Connected through hyperedge HE-6 (induced by source paper "universal reconfiguration of facet connected modular robots by pivots the o 1 musketeers"):
  with members:
    - "universal reconfiguration of hyper cubic robots"

Connected through hyperedge HE-7 (induced by source paper "exploration of finite 2d square grid by a metamorphic robotic system"):
  with members:
    - "turingmobile a turing machine of oblivious mobile robots with limited visibility and its applications"
    - "shape formation by programmable particles"
    - "universal coating for programmable matter"
    - "plane formation by synchronous mobile robots in the three dimensional euclidean space"
    - "connectivity preserving network transformers"
    - "optimal grid exploration by asynchronous oblivious robots"

Connected through hyperedge HE-8 (induced by source paper "shape formation by programmable particles"):
  with members:
    - "on the runtime of universal coating for programmable matter"
    - "line recovery by programmable particles"
    - "improved leader election for self organizing programmable matter"
    - "universal coating for programmable matter"
    - "a markov chain algorithm for compression in self organizing particle systems"
    - "terminating distributed construction of shapes and patterns in a fair solution of automata"
    - "an algorithmic framework for shape formation problems in self organizing particle systems"
    - "leader election and shape formation with self organizing programmable matter"

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)