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: "propositional dynamic logic with converse and repeat for message passing systems"
  Abstract: The model checking problem for propositional dynamic logic (PDL) over message#N#sequence charts (MSCs) and communicating finite state machines (CFMs) asks,#N#given a channel bound $B$, a PDL formula $\varphi$ and a CFM $\mathcal{C}$,#N#whether every existentially $B$-bounded MSC $M$ accepted by $\mathcal{C}$#N#satisfies $\varphi$. Recently, it was shown that this problem is#N#PSPACE-complete.#N#  In the present work, we consider CRPDL over MSCs which is PDL equipped with#N#the operators converse and repeat. The former enables one to walk back and#N#forth within an MSC using a single path expression whereas the latter allows to#N#express that a path expression can be repeated infinitely often. To solve the#N#model checking problem for this logic, we define message sequence chart#N#automata (MSCAs) which are multi-way alternating parity automata walking on#N#MSCs. By exploiting a new concept called concatenation states, we are able to#N#inductively construct, for every CRPDL formula $\varphi$, an MSCA precisely#N#accepting the set of models of $\varphi$. As a result, we obtain that the model#N#checking problem for CRPDL and CFMs is still in PSPACE.

Connected through hyperedge HE-1 (induced by source paper "it is easy to be wise after the event communicating finite state machines capture first order logic with happened before"):
  with members:
    - "propositional dynamic logic for message passing systems"

Connected through hyperedge HE-2 (induced by source paper "an automata theoretic approach to the verification of distributed algorithms"):
  with members:
    - "bottom up automata on data trees and vertical xpath"
    - "cycle detection in computation tree logic"
    - "parameterized model checking of token passing systems"

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)