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: "synthesis from assume guarantee contracts using skolemized proofs of realizability"
  Abstract: The realizability problem in requirements engineering is to decide existence of an implementation that meets the given formal requirements. A step forward after the realizability is proven is to construct such an implementation automatically, and thus solve the problem of program synthesis. In this paper, we propose a novel approach to pro- gram synthesis guided by the proofs of realizability represented by the set of valid forall-exists formulas. In particular, we propose to extract Skolem functions witnessing the existential quantification, and to compose the Skolem functions into an implementation that is guaranteed to comply with the user-defined requirements. We implemented the approach for requirements in the form of Assume-Guarantee contracts, using the Lustre specification language. It naturally extends the realizability check by the JKind model checker. Furthermore, we developed a compiler to translate pure Skolem-containing implementations to the C programming language. For a vast variety of models, we test their corresponding implementations against the ones provided by the LustreV6 compiler, yielding meaningful results.

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.SE(Software Engineering)