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: "shape formation by programmable particles"
  Abstract: Shape formation is a basic distributed problem for systems of computational mobile entities. Intensively studied for systems of autonomous mobile robots, it has recently been investigated in the realm of programmable matter. Namely, it has been studied in the geometric Amoebot model, where the anonymous entities, called particles, operate on a hexagonal tessellation of the plane and have limited computational power (they have constant memory), strictly local interaction and communication capabilities (only with particles in neighboring nodes of the grid), and limited motorial capabilities (from a grid node to an empty neighboring node); their activation is controlled by an adversarial scheduler. Recent investigations have shown how, starting from a well-structured configuration in which the particles form a (not necessarily complete) triangle, the particles can form a large class of shapes. This result has been established under several assumptions: agreement on the clockwise direction (i.e., chirality), a sequential activation schedule, and randomization (i.e., particles can flip coins). #R##N#In this paper we provide a characterization of which shapes can be formed deterministically starting from any simply connected initial configuration of $n$ particles. As a byproduct, if randomization is allowed, then any input shape can be formed from any initial (simply connected) shape by our algorithm, provided that $n$ is large enough. #R##N#Our algorithm works without chirality, proving that chirality is computationally irrelevant for shape formation. Furthermore, it works under a strong adversarial scheduler, not necessarily sequential. We also consider the complexity of shape formation in terms of both the number of rounds and of moves performed by the particles. We prove that our solution has a complexity of $O(n^2)$ rounds and moves: this number of moves is also asymptotically optimal.

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"
    - "on the transformation capability of feasible mechanisms for programmable matter"
    - "turingmobile a turing machine of oblivious mobile robots with limited visibility and its applications"
    - "line recovery 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 "connected assembly and reconfiguration by finite automata"):
  with members:
    - "on the runtime of universal coating for programmable matter"
    - "cadbots algorithmic aspects of manipulating programmable matter with finite automata"
    - "improved leader election for self organizing programmable matter"
    - "universal coating for programmable matter"
    - "new geometric algorithms for fully connected staged self assembly"
    - "an algorithmic framework for shape formation problems in self organizing particle systems"
    - "leader election and shape formation with self organizing programmable matter"
    - "universal computation with arbitrary polyomino tiles in non cooperative self assembly"

Connected through hyperedge HE-3 (induced by source paper "deterministic leader election in programmable matter"):
  with members:
    - "distributed leader election and computation of local identifiers for programmable matter"
    - "a stochastic approach to shortcut bridging in programmable matter"
    - "on the runtime of universal coating for programmable matter"
    - "convex hull formation 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"

Connected through hyperedge HE-4 (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"
    - "on the transformation capability of feasible mechanisms for programmable matter"
    - "line recovery 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-5 (induced by source paper "fault tolerant network constructors"):
  with members:
    - "on the runtime of universal coating for programmable matter"
    - "on the transformation capability of feasible mechanisms for programmable matter"
    - "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 "distributed leader election and computation of local identifiers for programmable matter"):
  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"
    - "an algorithmic framework for shape formation problems in self organizing particle systems"
    - "leader election and shape formation with self organizing programmable matter"

Connected through hyperedge HE-7 (induced by source paper "exploration of finite 2d square grid by a metamorphic robotic system"):
  with members:
    - "on the transformation capability of feasible mechanisms for programmable matter"
    - "turingmobile a turing machine of oblivious mobile robots with limited visibility and its applications"
    - "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"

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.DC(Distributed, Parallel, and Cluster Computing)