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: "ltl with the freeze quantifier and register automata"
  Abstract: A data word is a sequence of pairs of a letter from a finite alphabet and an element from an infinite set, where the latter can only be compared for equality. To reason about data words, linear temporal logic is extended by the freeze quantifier, which stores the element at the current word position into a register, for equality comparisons deeper in the formula. By translations from the logic to alternating automata with registers and then to faulty counter automata whose counters may erroneously increase at any time, and from faulty and error-free counter automata to the logic, we obtain a complete complexity table for logical fragments defined by varying the set of temporal operators and the number of registers. In particular, the logic with future-time operators and 1 register is decidable but not primitive recursive over finite data words. Adding past-time operators or 1 more register, or switching to infinite data words, cause undecidability.

Connected through hyperedge HE-1 (induced by source paper "on computability of data word functions defined by transducers"):
  with members:
    - "synthesis of data word transducers"
    - "deciding the computability of regular functions over infinite words"
    - "bounded synthesis of register transducers"
    - "on equivalence and uniformisation problems for finite transducers"
    - "degrees of lookahead in regular infinite games"

Connected through hyperedge HE-2 (induced by source paper "runtime verification over out of order streams"):
  with members:
    - "runtime verification of temporal properties over out of order data streams"
    - "efficient and generalized decentralized monitoring of regular languages"
    - "semantics and algorithms for parametric monitoring"
    - "decentralised ltl monitoring"

Connected through hyperedge HE-3 (induced by source paper "parameterized synthesis for fragments of first order logic over data words"):
  with members:
    - "synthesis of data word transducers"
    - "playing with repetitions in data words using energy games"
    - "bounded synthesis of register transducers"
    - "distributed synthesis for parameterized temporal logics"
    - "playing games in the baire space"
    - "automated synthesis of distributed controllers"
    - "optimal strategy synthesis for request response games"
    - "petri games synthesis of distributed systems with causal memory"

Connected through hyperedge HE-4 (induced by source paper "model checking the interval way"):
  with members:
    - "complexity of timeline based planning over dense temporal domains exploring the middle ground"
    - "interval vs point temporal logic model checking an expressiveness comparison"
    - "model checking for fragments of halpern and shoham s interval temporal logic based on track representatives"
    - "on the complexity of model checking for syntactically maximal fragments of the interval temporal logic hs with regular expressions"
    - "checking interval properties of computations"
    - "complexity hierarchies beyond elementary"
    - "complexity of itl model checking some well behaved fragments of the interval logic hs"
    - "interval based synthesis"

Connected through hyperedge HE-5 (induced by source paper "synthesis of data word transducers"):
  with members:
    - "playing with repetitions in data words using energy games"
    - "logics for word transductions with synthesis"
    - "bounded synthesis of register transducers"
    - "on equivalence and uniformisation problems for finite transducers"
    - "two variable logic with two order relations"

Connected through hyperedge HE-6 (induced by source paper "on the containment problem for unambiguous single register automata with guessing"):
  with members:
    - "the containment problem for unambiguous register automata"
    - "synchronizing data words for register automata"

Connected through hyperedge HE-7 (induced by source paper "scalar and vectorial mu calculus with atoms"):
  with members:
    - "modal logics for nominal transition systems"
    - "reasoning about data repetitions with counter systems"
    - "smt solving for functional programming over infinite structures"
    - "automata theory in nominal sets"
    - "alternating register automata on finite words and trees"
    - "alternating automata on data trees and xpath satisfiability"
    - "on the freeze quantifier in constraint ltl decidability and complexity"

Connected through hyperedge HE-8 (induced by source paper "playing with repetitions in data words using energy games"):
  with members:
    - "perfect half space games"
    - "reasoning about data repetitions with counter systems"
    - "solving parity games on integer vectors"
    - "strategy synthesis for multi dimensional quantitative objectives"
    - "reachability games on extended vector addition systems with states"
    - "temporal logics on words with multiple data values"

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)