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: "system model based definition of modeling language semantics"
  Abstract: In this paper, we present an approach to define the semantics for object-oriented modeling languages. One important property of this semantics is to support underspecified and incomplete models. To this end, semantics is given as predicates over elements of the semantic domain. This domain is called the system model which is a general declarative characterization of object systems. The system model is very detailed since it captures various relevant structural, behavioral, and interaction aspects. This allows us to re-use the system model as a domain for various kinds of object-oriented modeling languages. As a major consequence, the integration of language semantics is straight-forward. The whole approach is supported by tools that do not constrain the semantics definition's expressiveness and flexibility while making it machine-checkable.

Connected through hyperedge HE-1 (induced by source paper "montiarc architectural modeling of interactive distributed and cyber physical systems"):
  with members:
    - "towards a system model for uml the structural data model"
    - "efficient editor generation for compositional dsls in eclipse"
    - "towards a family based analysis of applicability conditions in architectural delta models"
    - "system model semantics of class diagrams"
    - "monticore a framework for compositional development of domain specific languages"
    - "modelling automotive function nets with views for features variants and modes"
    - "delta modeling for software architectures"
    - "monticore modular development of textual domain specific languages"

Connected through hyperedge HE-2 (induced by source paper "cd2alloy class diagrams analysis using alloy revisited"):
  with members:
    - "semantically configurable consistency analysis for class and object diagrams"
    - "system model semantics of class diagrams"
    - "monticore a framework for compositional development of domain specific languages"
    - "cddiff semantic differencing for class diagrams"
    - "developing the uml as a formal modelling notation"
    - "the uml as a formal modeling notation"

Connected through hyperedge HE-3 (induced by source paper "towards architectural programming of embedded systems"):
  with members:
    - "monticore modular development of textual domain specific languages"
    - "view based modeling of function nets"
    - "alice an advanced logic for interactive component engineering"

Connected through hyperedge HE-4 (induced by source paper "modeling language variability"):
  with members:
    - "monticore modular development of textual domain specific languages"
    - "variability within modeling language definitions"
    - "integrated definition of abstract and concrete syntax for textual languages"

Connected through hyperedge HE-5 (induced by source paper "variability within modeling language definitions"):
  with members:
    - "monticore modular development of textual domain specific languages"
    - "defining uml family members using prefaces"

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)