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 recognizable languages of infinite pictures"
  Abstract: In a recent paper, Altenbernd, Thomas and W\"ohrle have considered acceptance of languages of infinite two-dimensional words (infinite pictures) by finite tiling systems, with the usual acceptance conditions, such as the B\"uchi and Muller ones, firstly used for infinite words. The authors asked for comparing the tiling system acceptance with an acceptance of pictures row by row using an automaton model over ordinal words of length $\omega^2$. We give in this paper a solution to this problem, showing that all languages of infinite pictures which are accepted row by row by B\"uchi or Choueka automata reading words of length $\omega^2$ are B\"uchi recognized by a finite tiling system, but the converse is not true. We give also the answer to two other questions which were raised by Altenbernd, Thomas and W\"ohrle, showing that it is undecidable whether a B\"uchi recognizable language of infinite pictures is E-recognizable (respectively, A-recognizable).

Connected through hyperedge HE-1 (induced by source paper "highly undecidable problems for infinite computations"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "on the topological complexity of infinitary rational relations"
    - "highly undecidable problems about recognizability by tiling systems"
    - "undecidable problems about timed automata"
    - "borel ranks and wadge degrees of context free omega languages"

Connected through hyperedge HE-2 (induced by source paper "the complexity of infinite computations in models of set theory"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "highly undecidable problems for infinite computations"
    - "topological complexity of context free omega languages a survey"
    - "highly undecidable problems about recognizability by tiling systems"
    - "borel ranks and wadge degrees of context free omega languages"

Connected through hyperedge HE-3 (induced by source paper "on infinite real trace rational languages of maximum topological complexity"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "on the topological complexity of infinitary rational relations"

Connected through hyperedge HE-4 (induced by source paper "highly undecidable problems about recognizability by tiling systems"):
  with members:
    - "borel hierarchy and omega context free languages"
    - "highly undecidable problems for infinite computations"

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.LO(Logic in Computer Science)