human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "the role of emotions in contributors activity a case study on the gentoo community"):
  Abstract: We analyze the relation between the emotions and the activity of contributors in the Open Source Software project GENTOO. Our case study builds on extensive data sets from the project's bug tracking platform BUGZILLA, to quantify the activity of contributors, and its mail archives, to quantify the emotions of contributors by means of sentiment analysis. The GENTOO project is known for a period of centralization within its bug triaging community. This was followed by considerable changes in community organization and performance after the sudden retirement of the central contributor. We analyze how this event correlates with the negative emotions, both in bilateral email discussions with the central contributor, and at the level of the whole community of contributors. We then extend our study to consider the activity patterns of GENTOO contributors in general. We find that contributors are more likely to become inactive when they express strong positive or negative emotions in the bug tracker, or when they deviate from the expected value of emotions in the mailing list. We use these insights to develop a Bayesian classifier that detects the risk of contributors leaving the project. Our analysis opens new perspectives for measuring online contributor motivation by means of sentiment analysis and for real-time predictions of contributor turnover in Open Source Software projects.

Includes members:
  Member "categorizing bugs with social networks a case study on four open source software communities":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "assessing the quality of the steps to reproduce in bug reports")
  Member "social resilience in online communities the autopsy of friendster":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "span core decomposition for temporal networks algorithms and applications")
  Member "the rise and fall of a central contributor dynamics of social organization and performance in the gentoo community":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "characterizing and understanding software developer networks in security development")
  Member "positive words carry less information than negative words":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "the qwerty effect on the web how typing shapes the meaning of words in online human computer interaction")
  Member "negative effects of incentivised viral campaigns for activity in social networks":
    also connected through other hyperedges:
      (none)
  Member "a quantitative study of social organisation in open source software communities":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a systematic mapping study of developer social network research")
  Member "twitter mood predicts the stock market":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "mining social media data for biomedical signals and health related behavior")
  Member "personalised and dynamic trust in social networks":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "decentralized trust management risk analysis and trust aggregation")

Question: Please tell me which class the source paper 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)