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: "towards a technique for extracting microservices from monolithic enterprise systems"
  Abstract: The idea behind microservices architecture is to develop a single large, complex, application as a suite of small, cohesive, independent services. On the other way, monolithic systems get larger over the time, deviating from the intended architecture, and becoming tough, risky, and expensive to evolve. This paper describes a technique to identify and define microservices on a monolithic enterprise system. As the major contribution, our evaluation demonstrate that our approach could identify good candidates to become microservices on a 750 KLOC banking system, which reduced the size of the original system and took the benefits of microservices architecture, such as services being developed and deployed independently, and technology independence.

Connected through hyperedge HE-1 (induced by source paper "kuksa a cloud native architecture for enabling continuous delivery in the automotive domain"):
  with members:
    - "microservices migration of a mission critical system"
    - "migrating to cloud native architectures using microservices an experience report"

Connected through hyperedge HE-2 (induced by source paper "from monolith to microservices a classification of refactoring approaches"):
  with members:
    - "on the detection of high impact refactoring opportunities in programs"

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)