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: "on modelling and analysis of dynamic reconfiguration of dependable real time systems"
  Abstract: This paper motivates the need for a formalism for the modelling and analysis of dynamic reconfiguration of dependable real-time systems. We present requirements that the formalism must meet, and use these to evaluate well established formalisms and two process algebras that we have been developing, namely, Webpi and CCSdp. A simple case study is developed to illustrate the modelling power of these two formalisms. The paper shows how Webpi and CCSdp represent a significant step forward in modelling adaptive and dependable real-time systems.

Connected through hyperedge HE-1 (induced by source paper "autoreq expressing and verifying requirements for control systems"):
  with members:
    - "complete contracts through specification drivers"
    - "unifying requirements and code an example"
    - "autoproof auto active functional verification of object oriented programs"
    - "an ltl semantics of business workflows with recovery"
    - "flexible invariants through semantic collaboration"
    - "evolving algebras and partial evaluation"

Connected through hyperedge HE-2 (induced by source paper "initial steps towards assessing the usability of a verification tool"):
  with members:
    - "autoproof auto active functional verification of object oriented programs"
    - "the autoproof verifier usability by non experts and on standard code"
    - "flexible invariants through semantic collaboration"
    - "deriving specifications of dependable systems toward a method"

Connected through hyperedge HE-3 (induced by source paper "model checking of bpmn models for reconfigurable workflows"):
  with members:
    - "on methods for the formal specification of fault tolerant systems"
    - "deriving specifications of dependable systems toward a method"

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)