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: "extensible validation framework for dsls using monticore on the example of coding guidelines"
  Abstract: Rheinisch Westfalische Technische Hochschule (RWTH) AachenDepartment of Computer Science 3Ahornstraˇe 55, 52074 Aachen, www.se-rwth.deAbstract. Unit test environments are today’s state of the art for manyprogramming languages to keep the software’s quality above a certainlevel. However, the software’s syntactic quality necessary for the devel-opers themselves is not covered by the aforementioned frameworks. Thispaper presents a tool realized using the DSL framework MontiCore forautomatically validating easily extensible coding guidelines for any do-main speci c language or even general purpose languages like C++ andits application in an automotive R&D project where a German OEMand several suppliers were involved. Moreover, it was exemplary appliedon UML/P-based sequence charts as well.

Connected through hyperedge HE-1 (induced by source paper "engineering autonomous driving software"):
  with members:
    - "caroline an autonomously driving vehicle for urban environments"
    - "software systems engineering process and tools for the development of autonomous driving intelligence"
    - "monticore a framework for the development of textual domain specific languages"

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)