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: "counter example guided synthesis of control lyapunov functions for switched systems"
  Abstract: We investigate the problem of synthesizing switching controllers for stabilizing continuous-time plants. First, we introduce a class of control Lyapunov functions (CLFs) for switched systems along with a switching strategy that yields a closed loop system with a guaranteed minimum dwell time in each switching mode. However, the challenge lies in automatically synthesizing appropriate CLFs. Assuming a given fixed form for the CLF with unknown coefficients, we derive quantified nonlinear constraints whose feasible solutions (if any) correspond to CLFs for the original system. However, solving quantified nonlinear constraints pose a challenge to most LMI/BMI-based relaxations. Therefore, we investigate a general approach called Counter-Example Guided Inductive Synthesis (CEGIS), that has been widely used in the emerging area of automatic program synthesis. We show how a LMI-based relaxation can be formulated within the CEGIS framework for synthesizing CLFs. We also evaluate our approach on a number of interesting benchmarks, and compare the performance of the new approach with our previous work that uses off-the-shelf nonlinear constraint solvers instead of the LMI relaxation. The results shows synthesizing CLFs by using LMI solvers inside a CEGIS framework can be a computational feasible approach to synthesizing CLFs.

Connected through hyperedge HE-1 (induced by source paper "learning control lyapunov functions from counterexamples and demonstrations"):
  with members:
    - "path following through control funnel functions"
    - "safe learning of quadrotor dynamics using barrier certificates"
    - "learning lyapunov potential functions from counterexamples and demonstrations"
    - "a theory of formal synthesis via inductive learning"
    - "counterexample guided synthesis of switched controllers for reach while stay properties"
    - "controller synthesis with inductive proofs for piecewise linear systems an smt based algorithm"
    - "learning deep control policies for autonomous aerial vehicles with mpc guided policy search"
    - "torque saturation in bipedal robotic walking through control lyapunov function based quadratic programs"

Connected through hyperedge HE-2 (induced by source paper "formal policy learning from demonstrations for reachability properties"):
  with members:
    - "learning control lyapunov functions from counterexamples and demonstrations"
    - "sound and automated synthesis of digital stabilizing controllers for continuous plants"
    - "plato policy learning using adaptive trajectory optimization"
    - "a theory of formal synthesis via inductive learning"
    - "controller synthesis with inductive proofs for piecewise linear systems an smt based algorithm"
    - "a reduction of imitation learning and structured prediction to no regret online learning"
    - "webotstm professional mobile robot simulation"

Connected through hyperedge HE-3 (induced by source paper "inductive certificate synthesis for control design"):
  with members:
    - "learning control lyapunov functions from counterexamples and demonstrations"
    - "path following through control funnel functions"
    - "the reach avoid problem for constant rate multi mode systems"
    - "automated formal synthesis of digital controllers for state space physical plants"
    - "learning lyapunov potential functions from counterexamples and demonstrations"
    - "a theory of formal synthesis via inductive learning"
    - "counterexample guided synthesis of switched controllers for reach while stay properties"
    - "controller synthesis with inductive proofs for piecewise linear systems an smt based algorithm"

Connected through hyperedge HE-4 (induced by source paper "sound and automated synthesis of digital stabilizing controllers for continuous plants"):
  with members:
    - "sygus comp 2016 results and analysis"
    - "using program synthesis for program analysis"
    - "swati synthesizing wordlengths automatically using testing and induction"

Connected through hyperedge HE-5 (induced by source paper "a class of control certificates to ensure reach while stay for switched systems"):
  with members:
    - "controller synthesis with inductive proofs for piecewise linear systems an smt based algorithm"
    - "automata theory meets barrier certificates temporal logic verification of nonlinear systems"
    - "exponential condition based barrier certificate generation for safety verification of hybrid systems"

Connected through hyperedge HE-6 (induced by source paper "automated formal synthesis of digital controllers for state space physical plants"):
  with members:
    - "sound and automated synthesis of digital stabilizing controllers for continuous plants"
    - "using program synthesis for program analysis"

Connected through hyperedge HE-7 (induced by source paper "a counter example guided framework for robust synthesis of switched systems using control certificates"):
  with members:
    - "counterexample guided synthesis of switched controllers for reach while stay properties"
    - "controller synthesis with inductive proofs for piecewise linear systems an smt based algorithm"

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.SY(Systems and Control)