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: "a realizability model for a semantical value restriction"
  Abstract: Reconciling dependent product and classical logic with call-by-value evaluation is a difficult problem. It is the first step toward a classical proof system for an ML-like language. In such a system, the introduction rule for universal quantification and the elimination rule for dependent product need to be restricted: they can only be applied to values. This value restriction is acceptable for universal quantification (ML-like polymorphism) but makes dependent product unusable in practice. In order to circumvent this limitation we introduce new typing rules and prove their consistency by constructing a realizability model in three layers (values, stacks and terms). Such a technique has already been used to account for classical ML-like polymorphism in call-by-value, and we here extend it to handle dependent product. The main idea is to internalize observational equivalence as a new non-computable operation in the calculus. A crucial property of the obtained model is that the biorthogonal of a set of values which is closed under observational equivalence does not contain more values than the original set.

Connected through hyperedge HE-1 (induced by source paper "a classical realizability model for a semantical value restriction"):
  with members:
    - "the size change termination principle for constructor based languages"

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)