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: "anger is more influential than joy sentiment correlation in weibo"
  Abstract: Recent years have witnessed the tremendous growth of the online social media. In China, Weibo, a Twitter-like service, has attracted more than 500 million users in less than five years. Connected by online social ties, different users might share similar affective states. We find that the correlation of anger among users is significantly higher than that of joy. While the correlation of sadness is surprisingly low. Moreover, there is a stronger sentiment correlation between a pair of users if they share more interactions. And users with larger number of friends possess more significant sentiment correlation with their neighborhoods. Our findings could provide insights for modeling sentiment influence and propagation in online social networks.

Connected through hyperedge HE-1 (induced by source paper "measuring the diversity of facebook reactions to research"):
  with members:
    - "jointly learning to detect emotions and predict facebook reactions"
    - "shared feelings understanding facebook reactions to scholarly articles"
    - "community interaction and conflict on the web"
    - "could scientists use altmetric com scores to predict longer term citation counts"
    - "social emotion mining techniques for facebook posts reaction prediction"
    - "anatomy of scholarly information behavior patterns in the wake of academic social media platforms"
    - "scholarly use of social media and altmetrics a review of the literature"
    - "140 characters to victory using twitter to predict the uk 2015 general election"

Connected through hyperedge HE-2 (induced by source paper "iad interaction aware diffusion framework in social networks"):
  with members:
    - "quantifying the effect of sentiment on information diffusion in social media"
    - "modeling adoption and usage of competing products"
    - "sketch based influence maximization and computation scaling up with guarantees"
    - "diffusive logistic model towards predicting information diffusion in online social networks"

Connected through hyperedge HE-3 (induced by source paper "tweet moodifier towards giving emotional awareness to twitter users"):
  with members:
    - "ex machina personal attacks seen at scale"
    - "concrete problems in ai safety"
    - "measuring emotional contagion in social media"

Connected through hyperedge HE-4 (induced by source paper "an agent based model for emotion contagion and competition in online social media"):
  with members:
    - "limited individual attention and online virality of low quality information"
    - "measuring emotional contagion in social media"
    - "agent based model for rural urban migration a dynamic consideration"
    - "the role of social networks in information diffusion"
    - "negative emotions boost user activity at bbc forum"
    - "twitter reciprocal reply networks exhibit assortativity with respect to happiness"
    - "happiness is assortative in online social networks"
    - "weak ties subtle role of information diffusion in online social networks"

Connected through hyperedge HE-5 (induced by source paper "facebook reaction based emotion classifier as cue for sarcasm detection"):
  with members:
    - "indonesian social media sentiment analysis with sarcasm detection"

Connected through hyperedge HE-6 (induced by source paper "emoticon based ambivalent expression a hidden indicator for unusual behaviors in weibo"):
  with members:
    - "twitter reciprocal reply networks exhibit assortativity with respect to happiness"
    - "happiness is assortative in online social networks"

Connected through hyperedge HE-7 (induced by source paper "deep feelings a massive cross lingual study on the relation between emotions and virality"):
  with members:
    - "depechemood a lexicon for emotion analysis from crowd annotated news"
    - "the role of emotions in propagating brands in social networks"
    - "how to ask for a favor a case study on the success of altruistic requests"
    - "the effect of wording on message propagation topic and author controlled natural experiments on twitter"
    - "exploring image virality in google plus"
    - "the untold story of the clones content agnostic factors that impact youtube video popularity"
    - "exploring text virality in social networks"
    - "how the scientific community reacts to newly submitted preprints article downloads twitter mentions and citations"

Connected through hyperedge HE-8 (induced by source paper "dynamics of trends and attention in chinese social media"):
  with members:
    - "battling the internet water army detection of hidden paid posters"
    - "trends in social media persistence and decay"
    - "influence and passivity in social media"
    - "social networks that matter twitter under the microscope"

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.SI(Social and Information Networks)