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: "memory safety challenge considered solved an empirical study with all rust cves"
  Abstract: Rust is an emerging programing language that aims at preventing memory-safety bugs without sacrificing much efficiency. The property is very attractive to developers, and many projects start using the language. However, can Rust achieve the memory-safety promise? This paper studies the question by surveying the bug reports collected from two public datasets, Advisory-db and Trophy-cases, which contain all existing CVEs (common vulnerability and exposures) of Rust. We manually analyze each bug and extract their memory-safety issues and culprits. Our results show that buffer overflow and dangling pointers are still the major memory-safety issues in Rust, and most culprits are related to unsafe Rust. Such security issues reveal that the security cost of Rust to support unsafe functions is high. To elaborate, the culprits of buffer overflow bugs in Rust are very similar to those in C/C++, which generally involve both logical errors and arbitrary pointer operations that are allowed only by unsafe Rust. However, the culprits of dangling pointers in Rust have unique patterns, especially those related to the vulnerability of Rust's borrow checker and lifetime checker. Based on these findings, we further suggest two directions to improve the resilience of Rust against dangling pointers, including recommending the best practice of some APIs to program developers, as well as approaches to enhancing the borrow checker and lifetime checker. Our work intends to raise more concerns regarding the memory-safety promise of Rust and facilitates the maturity of the language.

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.PL(Programming Languages)