human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "exploration of finite 2d square grid by a metamorphic robotic system"):
  Abstract: We consider exploration of finite 2D square grid by a metamorphic robotic system consisting of anonymous oblivious modules. The number of possible shapes of a metamorphic robotic system grows as the number of modules increases. The shape of the system serves as its memory and shows its functionality. We consider the effect of global compass on the minimum number of modules necessary to explore a finite 2D square grid. We show that if the modules agree on the directions (north, south, east, and west), three modules are necessary and sufficient for exploration from an arbitrary initial configuration, otherwise five modules are necessary and sufficient for restricted initial configurations.

Includes members:
  Member "on the transformation capability of feasible mechanisms for programmable matter":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "mobile ram and shape formation by programmable particles")
  Member "turingmobile a turing machine of oblivious mobile robots with limited visibility and its applications":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "mobile ram and shape formation by programmable particles")
  Member "shape formation by programmable particles":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "mobile ram and shape formation by programmable particles")
  Member "universal coating for programmable matter":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "mobile ram and shape formation by programmable particles")
  Member "plane formation by synchronous mobile robots in the three dimensional euclidean space":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "coding theory for noiseless channels realized by anonymous oblivious mobile robots")
  Member "connectivity preserving network transformers":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "distributed computation and reconfiguration in actively dynamic networks")
  Member "optimal grid exploration by asynchronous oblivious robots":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "using model checking to formally verify rendezvous algorithms for robots with lights in euclidean space")

Question: Please tell me which class the source paper 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)