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: "how the scientific community reacts to newly submitted preprints article downloads twitter mentions and citations"
  Abstract: We analyze the online response to the preprint publication of a cohort of 4,606 scientific articles submitted to the preprint database arXiv.org between October 2010 and May 2011. We study three forms of responses to these preprints: downloads on the arXiv.org site, mentions on the social media site Twitter, and early citations in the scholarly record. We perform two analyses. First, we analyze the delay and time span of article downloads and Twitter mentions following submission, to understand the temporal configuration of these reactions and whether one precedes or follows the other. Second, we run regression and correlation tests to investigate the relationship between Twitter mentions, arXiv downloads, and article citations. We find that Twitter mentions and arXiv downloads of scholarly articles follow two distinct temporal patterns of activity, with Twitter mentions having shorter delays and narrower time spans than arXiv downloads. We also find that the volume of Twitter mentions is statistically correlated with arXiv downloads and early citations just months after the publication of a preprint, with a possible bias that favors highly mentioned articles.

Connected through hyperedge HE-1 (induced by source paper "shared feelings understanding facebook reactions to scholarly articles"):
  with members:
    - "social emotion mining techniques for facebook posts reaction prediction"
    - "distant supervision for emotion detection using facebook reactions"

Connected through hyperedge HE-2 (induced by source paper "scholarly twitter metrics"):
  with members:
    - "a systematic identification and analysis of scientists on twitter"
    - "grand challenges in altmetrics heterogeneity data quality and dependencies"
    - "botornot a system to evaluate social bots"
    - "scholarly use of social media and altmetrics a review of the literature"
    - "the rise of social bots"
    - "when is an article actually published an analysis of online availability publication and indexation dates"
    - "differences in personal and professional tweets of scholars"
    - "influence of study type on twitter activity for medical research papers"

Connected through hyperedge HE-3 (induced by source paper "a systematic identification and analysis of scientists on twitter"):
  with members:
    - "differences in personal and professional tweets of scholars"
    - "astrophysicists on twitter an in depth analysis of tweeting and scientific publication behavior"
    - "studying social networks at scale macroscopic anatomy of the twitter social graph"
    - "do altmetrics correlate with citations extensive comparison of altmetric indicators with citations from a multidisciplinary perspective"
    - "alternative metrics in scientometrics a meta analysis of research into three altmetrics"
    - "do altmetrics point to the broader impact of research an overview of benefits and disadvantages of altmetrics"
    - "how well developed are altmetrics a cross disciplinary analysis of the presence of alternative metrics in scientific publications"
    - "tweeting biomedicine an analysis of tweets and citations in the biomedical literature"

Connected through hyperedge HE-4 (induced by source paper "the arxiv of the future will not look like the arxiv"):
  with members:
    - "last but not least additional positional effects on citation and readership in arxiv"
    - "positional effects on citation and readership in arxiv"

Connected through hyperedge HE-5 (induced by source paper "scholarly use of social media and altmetrics a review of the literature"):
  with members:
    - "interpreting altmetrics viewing acts on social media through the lens of citation and social theories"
    - "validity of altmetrics data for measuring societal impact a study using data from altmetric and f1000prime"
    - "tweets vs mendeley readers how do these two social media metrics differ"
    - "do altmetrics correlate with citations extensive comparison of altmetric indicators with citations from a multidisciplinary perspective"
    - "tweets as impact indicators examining the implications of automated bot accounts on twitter"
    - "do altmetrics point to the broader impact of research an overview of benefits and disadvantages of altmetrics"
    - "new data new possibilities exploring the insides of altmetric com"
    - "how well developed are altmetrics a cross disciplinary analysis of the presence of alternative metrics in scientific publications"

Connected through hyperedge HE-6 (induced by source paper "detecting and tracking the real time hot topics a study on computational neuroscience"):
  with members:
    - "usage history of scientific literature nature metrics and metrics of nature publications"
    - "how far does scientific community look back"
    - "exploring scientists working timetable a global survey"
    - "tracing scientist s research trends realtimely"
    - "exploring scientists working timetable do scientists often work overtime"
    - "ejournal interface can influence usage statistics implications for libraries publishers and project counter"

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"
    - "anger is more influential than joy sentiment correlation in weibo"
    - "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"

Connected through hyperedge HE-8 (induced by source paper "altmetrics chapter from beyond bibliometrics harnessing multidimensional indicators of scholarly impact"):
  with members:
    - "tracing scientist s research trends realtimely"
    - "how does market concern derived from the internet affect oil prices"
    - "beyond citations scholars visibility on the social web"
    - "altmetrics in the wild using social media to explore scholarly impact"
    - "twitter mood predicts the stock market"
    - "a principal component analysis of 39 scientific impact measures"
    - "analysis of social voting patterns on digg"
    - "scientific citations in wikipedia"

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)