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: "continuous integration in a social coding world empirical evidence from github"
  Abstract: Continuous integration is a software engineering practice of frequently merging all developer working copies with a shared main branch, e.g., several times a day. With the advent of GitHub, a platform well known for its "social coding" features that aid collaboration and sharing, and currently the largest code host in the open source world, collaborative software development has never been more prominent. In GitHub development one can distinguish between two types of developer contributions to a project: direct ones, coming from a typically small group of developers with write access to the main project repository, and indirect ones, coming from developers who fork the main repository, update their copies locally, and submit pull requests for review and merger. In this paper we explore how GitHub developers use continuous integration as well as whether the contribution type (direct versus indirect) and different project characteristics (e.g., main programming language, or project age) are associated with the success of the automatic builds.

Connected through hyperedge HE-1 (induced by source paper "replication can improve prior results a github study of pull request acceptance"):
  with members:
    - "trends in topics in software engineering conferences 1992 to 2016"
    - "tuning for software analytics"
    - "an insight into the pull requests of github"

Connected through hyperedge HE-2 (induced by source paper "continuous integration theater"):
  with members:
    - "building a collaborative culture a grounded theory of well succeeded devops adoption in practice"
    - "a novel approach for estimating truck factors"

Connected through hyperedge HE-3 (induced by source paper "how to design a program repair bot insights from the repairnator project"):
  with members:
    - "automatic software repair a bibliography"
    - "automatic repair of real bugs in java a large scale experiment on the defects4j dataset"
    - "nopol automatic repair of conditional statement bugs in java programs"
    - "test case generation for program repair a study of feasibility and effectiveness"
    - "an analysis of the search spaces for generate and validate patch generation systems"
    - "npefix automatic runtime repair of null pointer exceptions in java"

Connected through hyperedge HE-4 (induced by source paper "replicating and scaling up qualitative analysis using crowdsourcing a github based case study"):
  with members:
    - "an insight into the pull requests of github"

Connected through hyperedge HE-5 (induced by source paper "on github s programming languages"):
  with members:
    - "an insight into the pull requests of github"
    - "a study of language usage evolution in open source software"

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)