human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "an efficient simulation algorithm on kripke structures"):
  Abstract: A number of algorithms for computing the simulation preorder (and equivalence) on Kripke structures are available. Let Sigma denote the state space, -> the transition relation and Psim the partition of Sigma induced by simulation equivalence. While some algorithms are designed to reach the best space bounds, whose dominating additive term is |Psim|^2, other algorithms are devised to attain the best time complexity O(|Psim||->|). We present a novel simulation algorithm which is both space and time efficient: it runs in O(|Psim|^2 log|Psim| + |Sigma|log|Sigma|) space and O(|Psim||->|log|Sigma|) time. Our simulation algorithm thus reaches the best space bounds while closely approaching the best time complexity.

Includes members:
  Member "three simulation algorithms for labelled transition systems":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "foundation for a series of efficient simulation algorithms")
  Member "an efficient simulation algorithm based on abstract interpretation":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "simulations in rank based b uchi automata complementation technical report")

Question: Please tell me which class the source paper 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)