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: "do feelings matter on the correlation of affects and the self assessed productivity in software engineering"
  Abstract: Background: software engineering research (SE) lacks theory and methodologies for addressing human aspects in software development. Development tasks are undertaken through cognitive processing activities. Affects (emotions, moods, feelings) have a linkage to cognitive processing activities and the productivity of individuals. SE research needs to incorporate affect measurements to valorize human factors and to enhance management styles. #R##N#Objective: analyze the affects dimensions of valence, arousal, and dominance of software developers and their real-time correlation with their self-assessed productivity (sPR). #R##N#Method: repeated measurements design with 8 participants (4 students, 4 professionals), conveniently sampled and studied individually over 90 minutes of programming. The analysis was performed by fitting a linear mixed- effects (LME) model. #R##N#Results: valence and dominance are positively correlated with the sPR. The model was able to express about 38% of deviance from the sPR. Many lessons were learned when employing psychological measurements in SE and for fitting LME. #R##N#Conclusion: this article demonstrates the value of applying psychological tests in SE and echoes a call to valorize the human, individualized aspects of software developers. It reports a body of knowledge about affects, their classification, their measurement, and the best practices to perform psychological measurements in SE with LME models.

Connected through hyperedge HE-1 (induced by source paper "happiness and the productivity of software engineers"):
  with members:
    - "what happens when software developers are un happy"
    - "on the unhappiness of software developers"
    - "how do you feel developer an explanatory theory of the impact of affects on programming performance"
    - "software developers moods emotions and performance"
    - "happy software developers solve problems better psychological measurements in empirical software engineering"

Connected through hyperedge HE-2 (induced by source paper "what happens when software developers are un happy"):
  with members:
    - "unhappy developers bad for themselves bad for process and bad for software product"
    - "consequences of unhappiness while developing software"
    - "on the unhappiness of software developers"
    - "mining valence arousal and dominance possibilities for detecting burnout and productivity"
    - "understanding the affect of developers theoretical background and guidelines for psychoempirical software engineering"
    - "how do you feel developer an explanatory theory of the impact of affects on programming performance"
    - "the affect of software developers common misconceptions and measurements"
    - "software developers moods emotions and performance"

Connected through hyperedge HE-3 (induced by source paper "how to ask for technical help evidence based guidelines for writing questions on stack overflow"):
  with members:
    - "semeval 2016 task 4 sentiment analysis in twitter"
    - "bootstrapping a lexicon for emotional arousal in software engineering"
    - "emotxt a toolkit for emotion recognition from text"
    - "recommending insightful comments for source code using crowdsourced knowledge"
    - "how to ask for a favor a case study on the success of altruistic requests"
    - "the role of emotions in contributors activity a case study on the gentoo community"

Connected through hyperedge HE-4 (induced by source paper "consequences of unhappiness while developing software"):
  with members:
    - "unhappy developers bad for themselves bad for process and bad for software product"
    - "mining valence arousal and dominance possibilities for detecting burnout and productivity"
    - "understanding the affect of developers theoretical background and guidelines for psychoempirical software engineering"
    - "how do you feel developer an explanatory theory of the impact of affects on programming performance"
    - "the affect of software developers common misconceptions and measurements"
    - "software developers moods emotions and performance"
    - "happy software developers solve problems better psychological measurements in empirical software engineering"

Connected through hyperedge HE-5 (induced by source paper "on the unhappiness of software developers"):
  with members:
    - "consequences of unhappiness while developing software"
    - "mining valence arousal and dominance possibilities for detecting burnout and productivity"
    - "understanding the affect of developers theoretical background and guidelines for psychoempirical software engineering"
    - "how do you feel developer an explanatory theory of the impact of affects on programming performance"
    - "the affect of software developers common misconceptions and measurements"
    - "software developers moods emotions and performance"
    - "happy software developers solve problems better psychological measurements in empirical software engineering"

Connected through hyperedge HE-6 (induced by source paper "analyzing the relationship between project productivity and environment factors in the use case points method"):
  with members:
    - "model tree based adaption strategy for software effort estimation by analogy"
    - "analogy based effort estimation a new method to discover set of analogies from dataset characteristics"
    - "a hybrid model for estimating software project effort from use case points"
    - "neural network models for software development effort estimation a comparative study"
    - "an empirical evaluation of ensemble adjustment methods for analogy based effort estimation"

Connected through hyperedge HE-7 (induced by source paper "unhappy developers bad for themselves bad for process and bad for software product"):
  with members:
    - "understanding the affect of developers theoretical background and guidelines for psychoempirical software engineering"
    - "how do you feel developer an explanatory theory of the impact of affects on programming performance"
    - "software developers moods emotions and performance"
    - "happy software developers solve problems better psychological measurements in empirical software engineering"

Connected through hyperedge HE-8 (induced by source paper "mining valence arousal and dominance possibilities for detecting burnout and productivity"):
  with members:
    - "understanding the affect of developers theoretical background and guidelines for psychoempirical software engineering"
    - "deep feelings a massive cross lingual study on the relation between emotions and virality"

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)