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: "a manifesto for semantic model differencing"
  Abstract: Models are heavily used in software engineering and together with their systems they evolve over time. Thus, managing their changes is an important challenge for system maintainability. Existing approaches to model differencing concentrate on heuristics matching between model elements and on finding and presenting differences at a concrete or abstract syntactic level. While showing some success, these approaches are inherently limited to comparing syntactic structures. This paper is a manifesto for research on semantic model differencing. We present our vision to develop semantic diff operators for model comparisons: operators whose input consists of two models and whose output is a set of diff witnesses, instances of one model that are not instances of the other. In particular, if the models are syntactically different but there are no diff witnesses, the models are semantically equivalent. We demonstrate our vision using two concrete diff operators, for class diagrams and for activity diagrams. We motivate the use of semantic diff operators, brie y discuss the algorithms to compute them, list related challenges, and show their application and potential use as new fundamental building blocks for change management in model-driven engineering.

Connected through hyperedge HE-1 (induced by source paper "behavioral compatibility of simulink models for product line maintenance and evolution"):
  with members:
    - "architecture and behavior modeling of cyber physical systems with montiarcautomaton"
    - "monticore a framework for compositional development of domain specific languages"
    - "montiarc architectural modeling of interactive distributed and cyber physical systems"
    - "addiff semantic differencing for activity diagrams"
    - "evolving delta oriented software product line architectures"

Connected through hyperedge HE-2 (induced by source paper "cddiff semantic differencing for class diagrams"):
  with members:
    - "system model semantics of class diagrams"
    - "monticore a framework for compositional development of domain specific languages"
    - "modal object 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 "an interim summary on semantic model differencing"):
  with members:
    - "an operational semantics for activity diagrams using smv"
    - "cddiff semantic differencing for class diagrams"
    - "summarizing semantic model differences"
    - "addiff semantic differencing for activity diagrams"

Connected through hyperedge HE-4 (induced by source paper "model matching challenge benchmarks for ecore and bpmn diagrams"):
  with members:
    - "an interim summary on semantic model differencing"
    - "model evolution and management"
    - "cddiff semantic differencing for class diagrams"
    - "addiff semantic differencing for activity diagrams"

Connected through hyperedge HE-5 (induced by source paper "summarizing semantic model differences"):
  with members:
    - "an operational semantics for activity diagrams using smv"
    - "cddiff semantic differencing for class diagrams"
    - "the uml as a formal modeling notation"
    - "addiff semantic differencing for activity diagrams"

Connected through hyperedge HE-6 (induced by source paper "addiff semantic differencing for activity diagrams"):
  with members:
    - "an operational semantics for activity diagrams using smv"
    - "monticore a framework for compositional development of domain specific languages"
    - "cddiff semantic differencing for class diagrams"

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)