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: "agile software development methods review and analysis"
  Abstract: Agile - denoting "the quality of being agile, readiness for motion, nimbleness, activity, dexterity in motion" - software development methods are attempting to offer an answer to the eager business community asking for lighter weight along with faster and nimbler software development processes. This is especially the case with the rapidly growing and volatile Internet software industry as well as for the emerging mobile application environment. The new agile methods have evoked substantial amount of literature and debates. However, academic research on the subject is still scarce, as most of existing publications are written by practitioners or consultants. The aim of this publication is to begin filling this gap by systematically reviewing the existing literature on agile software development methodologies. This publication has three purposes. First, it proposes a definition and a classification of agile software development approaches. Second, it analyses ten software development methods that can be characterized as being "agile" against the defined criterion. Third, it compares these methods and highlights their similarities and differences. Based on this analysis, future research needs are identified and discussed.

Connected through hyperedge HE-1 (induced by source paper "the essence theory of software engineering large scale classroom experiences from 450 software engineering bsc students"):
  with members:
    - "gamifying the escape from the engineering method prison"
    - "why early stage software startups fail a behavioral framework"
    - "a web based modeling tool for the semat essence theory of software engineering"

Connected through hyperedge HE-2 (induced by source paper "coordinating knowledge work in multi team programs findings from a large scale agile development program"):
  with members:
    - "what is large in large scale a taxonomy of scale for agile software development"
    - "agile software development methods a comparative review 1"

Connected through hyperedge HE-3 (induced by source paper "designing privacy for you a user centric approach for privacy"):
  with members:
    - "a trust domains taxonomy for securely sharing information a preliminary investigation"
    - "privacy and data protection by design from policy to engineering"
    - "privacy design strategies"

Connected through hyperedge HE-4 (induced by source paper "what is the connection between issues bugs and enhancements lessons learned from 800 software projects"):
  with members:
    - "less is more minimizing code reorganization using xtree"

Connected through hyperedge HE-5 (induced by source paper "human factors in agile software development"):
  with members:
    - "designing socially intelligent virtual companions"
    - "systematic task allocation evaluation in distributed software development"
    - "distributed agile software development a review"
    - "a survey on the state of the practice in distributed software development criteria for task allocation"
    - "a decision model for supporting task allocation processes in global software development"

Connected through hyperedge HE-6 (induced by source paper "a structured framework for assessing the goodness of agile methods"):
  with members:
    - "determining the applicability of agile practices to mission and life critical systems"
    - "a disciplined approach to adopting agile practices the agile adoption framework"

Connected through hyperedge HE-7 (induced by source paper "determining the applicability of agile practices to mission and life critical systems"):
  with members:
    - "agile adoption process framework"

Connected through hyperedge HE-8 (induced by source paper "a disciplined approach to adopting agile practices the agile adoption framework"):
  with members:
    - "agile adoption process framework"

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)