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: "improving the upper bound on the length of the shortest reset word"
  Abstract: We improve the best known upper bound on the length of the shortest reset words of synchronizing automata. The new bound is slightly better than 114 n^3 / 685 + O(n^2). The Cerny conjecture states that (n-1)^2 is an upper bound. So far, the best general upper bound was (n^3-n)/6-1 obtained by J.-E. Pin and P. Frankl in 1982. Despite a number of efforts, it remained unchanged for about 35 years.#R##N##R##N#To obtain the new upper bound we utilize avoiding words.#R##N#A word is avoiding for a state q if after reading the word the automaton cannot be in q. We obtain upper bounds on the length of the shortest avoiding words, and using the approach of Trahtman from 2011 combined with the well-known Frankl theorem from 1982, we improve the general upper bound on the length of the shortest reset words.#R##N#For all the bounds, there exist polynomial algorithms finding a word of length not exceeding the bound.

Connected through hyperedge HE-1 (induced by source paper "a linear bound on the k rendezvous time for primitive sets of nz matrices"):
  with members:
    - "on random primitive sets directable ndfas and the generation of slowly synchronizing dfas"
    - "the synchronizing probability function for primitive sets of matrices"
    - "on randomized generation of slowly synchronizing automata"
    - "primitive sets of nonnegative matrices and synchronizing automata"
    - "experiments with synchronizing automata"
    - "reachability of consensus and synchronizing automata"
    - "synchronizing automata with extremal properties"
    - "strong inapproximability of the shortest reset word"

Connected through hyperedge HE-2 (induced by source paper "matrix approach to synchronizing automata"):
  with members:
    - "finding dfas with maximal shortest synchronizing word length"
    - "primitive sets of nonnegative matrices and synchronizing automata"
    - "on the synchronizing probability function and the triple rendezvous time for synchronizing automata"
    - "a note on a recent attempt to improve the pin frankl bound"
    - "algebraic synchronization criterion and computing reset words"
    - "slowly synchronizing automata and digraphs"

Connected through hyperedge HE-3 (induced by source paper "on completely reachable automata and subset reachability"):
  with members:
    - "complexity of preimage problems for deterministic finite automata"
    - "on the interplay between babai and v c ern y s conjectures"
    - "completely reachable automata"
    - "reachability of consensus and synchronizing automata"
    - "subset synchronization and careful synchronization of binary finite automata"
    - "on the synchronizing probability function and the triple rendezvous time for synchronizing automata"
    - "subset synchronization of transitive automata"
    - "a note on a recent attempt to improve the pin frankl bound"

Connected through hyperedge HE-4 (induced by source paper "the synchronizing probability function for primitive sets of matrices"):
  with members:
    - "on random primitive sets directable ndfas and the generation of slowly synchronizing dfas"
    - "on randomized generation of slowly synchronizing automata"
    - "primitive sets of nonnegative matrices and synchronizing automata"
    - "reachability of consensus and synchronizing automata"
    - "synchronizing automata with extremal properties"
    - "primitive digraphs with large exponents and slowly synchronizing automata"
    - "the complexity of finding reset words in finite automata"
    - "smoothed analysis of algorithms why the simplex algorithm usually takes polynomial time"

Connected through hyperedge HE-5 (induced by source paper "slowly synchronizing automata with idempotent letters of low rank"):
  with members:
    - "on randomized generation of slowly synchronizing automata"
    - "counting symbol switches in synchronizing automata"
    - "on the interplay between babai and v c ern y s conjectures"
    - "an extremal series of eulerian synchronizing automata"
    - "synchronizing automata with extremal properties"

Connected through hyperedge HE-6 (induced by source paper "on random primitive sets directable ndfas and the generation of slowly synchronizing dfas"):
  with members:
    - "on the interplay between babai and v c ern y s conjectures"
    - "an extremal series of eulerian synchronizing automata"
    - "primitive digraphs with large exponents and slowly synchronizing automata"
    - "on the probability of being synchronizable"

Connected through hyperedge HE-7 (induced by source paper "synchronizing random almost group automata"):
  with members:
    - "fast synchronization of random automata"
    - "on the probability of being synchronizable"
    - "the road coloring problem"

Connected through hyperedge HE-8 (induced by source paper "synchronization problems in automata without non trivial cycles"):
  with members:
    - "finding short synchronizing words for prefix codes"
    - "subset synchronization in monotonic automata"
    - "approximating the maximum number of synchronizing states in automata"
    - "completely reachable automata"
    - "primitive sets of nonnegative matrices and synchronizing automata"
    - "subset synchronization and careful synchronization of binary finite automata"
    - "subset synchronization of transitive automata"
    - "strong inapproximability of the shortest reset word"

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.FL(Formal Languages and Automata Theory)