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: "moving target defense for web applications using bayesian stackelberg games"
  Abstract: Web applications form a critical component of cyber security systems as they act as a gateway for many institutions. Vulnerabilities in web applications allow malicious actors to access and/or modify restricted data. Here the hackers have the opportunity to perform reconnaissance so as to gain knowledge about the web application layout before launching an attack, whereas the defender (administrator of the web application) must secure the application even with its potential vulnerabilities. In order to mask such vulnerabilities which are primarily associated with different individual configurations, Moving Target Defense systems were proposed wherein the defender switches between various configurations thereby making it difficult to attack with success, while maintaining a seamless experience for the genuine users. However, the design of good quality switching strategies is still an open problem which is crucial for the effectiveness of the Moving Target Defense approach. In this paper, we present a way to find effective switching strategies by modeling this ecosystem as a Bayesian Stackelberg game with the administrator as the leader and the hackers as the followers, which as we show succinctly captures various aspects of the Moving Target Defense systems. Furthermore, we show how to determine which vulnerability areas should be addressed first once the system is deployed and which attacker type uncertainties should be calibrated with high precision, for increasing the security of the web application. We present experimental results on a representative web application system demonstrating the utility of switching strategies obtained using the proposed method, and we discuss various future directions that are unique to the web application domain.

Connected through hyperedge HE-1 (induced by source paper "flipin a game theoretic cyber insurance framework for incentive compatible cyber risk management of internet of things"):
  with members:
    - "dynamic psychological game theory for secure internet of battlefield things iobt systems"
    - "defense against advanced persistent threats in dynamic cloud storage a colonel blotto game approach"
    - "dynamic connectivity game for adversarial internet of battlefield things systems"
    - "a colonel blotto game for interdependence aware cyber physical systems security in smart cities"
    - "jamming in the internet of things a game theoretic perspective"
    - "flip the cloud cyber physical signaling games in the presence of advanced persistent threats"
    - "a game theoretic model for defending against stealthy attacks with limited resources"
    - "internet of things iot a vision architectural elements and future directions"

Connected through hyperedge HE-2 (induced by source paper "a survey of moving target defenses for network security"):
  with members:
    - "toward a theory of cyber attacks"
    - "adversarial deep learning for robust detection of binary encoded malware"
    - "adaptive mtd security using markov game modeling"
    - "trufl distributed trust management framework in sdn"
    - "markov game modeling of moving target defense for strategic detection of threats in cloud networks"
    - "mtdeep boosting the security of deep neural nets against adversarial attacks with moving target defense"
    - "software defined networking a comprehensive survey"
    - "intriguing properties of neural networks"

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.CR(Cryptography and Security)