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 expressive powers of timed logics comparing boundedness non punctuality and deterministic freezing"
  Abstract: Timed temporal logics exhibit a bewildering diversity of operators and the resulting decidability and expressiveness properties also vary considerably. We study the expressive power of timed logics TPTL[U,S] and MTL[U,S] as well as of their several fragments. Extending the LTL EF games of Etessami and Wilke, we define MTL Ehrenfeucht-Fraisse games on a pair of timed words. Using the associated EF theorem, we show that, expressively, the timed logics BoundedMTL[U,S], MTL[F,P] and MITL[U,S] (respectively incorporating the restrictions of boundedness, unary modalities and non-punctuality), are all pairwise incomparable. As our first main result, we show that MTL[U,S] is strictly contained within the freeze logic TPTL[U,S] for both weakly and strictly monotonic timed words, thereby extending the result of Bouyer et al and completing the proof of the original conjecture of Alur and Henziger from 1990. We also relate the expressiveness of a recently proposed deterministic freeze logic TTL[X,Y] (with NP-complete satisfiability) to MTL. As our second main result, we show by an explicit reduction that TTL[X,Y] lies strictly within the unary, non-punctual logic MITL[F,P]. This shows that deterministic freezing with punctuality is expressible in the non-punctual MITL[F,P].

Connected through hyperedge HE-1 (induced by source paper "on the expressiveness and monitoring of metric temporal logic"):
  with members:
    - "on mitl and alternating timed automata over infinite words"
    - "on the complexity of temporal logic path checking"
    - "expressive completeness of metric temporal logic"
    - "when is metric temporal logic expressively complete"
    - "expressiveness of metric modalities for continuous time"
    - "on timed automata with input determined guards"
    - "alternating timed automata"
    - "the complexity of temporal logic over the reals"

Connected through hyperedge HE-2 (induced by source paper "metric temporal logic with counting"):
  with members:
    - "partially punctual metric temporal logic is decidable"
    - "when is metric temporal logic expressively complete"

Connected through hyperedge HE-3 (induced by source paper "on the expressiveness of tptl and mtl over ω data words"):
  with members:
    - "an automaton over data words that captures emso logic"
    - "ltl with the freeze quantifier and register automata"
    - "on the freeze quantifier in constraint ltl decidability and complexity"

Connected through hyperedge HE-4 (induced by source paper "partially punctual metric temporal logic is decidable"):
  with members:
    - "ltl with the freeze quantifier and register automata"

Connected through hyperedge HE-5 (induced by source paper "ehrenfeucht fraisse games for tptl and mtl over non monotonic data words"):
  with members:
    - "an automaton over data words that captures emso logic"

Connected through hyperedge HE-6 (induced by source paper "on the decidability and complexity of some fragments of metric temporal logic"):
  with members:
    - "ltl with the freeze quantifier and register automata"

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)