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: "all who wander on the prevalence and characteristics of multi community engagement"
  Abstract: Although analyzing user behavior within individual communities is an active and rich research domain, people usually interact with multiple communities both on- and off-line. How do users act in such multi-community environments? Although there are a host of intriguing aspects to this question, it has received much less attention in the research community in comparison to the intra-community case. In this paper, we examine three aspects of multi-community engagement: the sequence of communities that users post to, the language that users employ in those communities, and the feedback that users receive, using longitudinal posting behavior on Reddit as our main data source, and DBLP for auxiliary experiments. We also demonstrate the effectiveness of features drawn from these aspects in predicting users' future level of activity. One might expect that a user's trajectory mimics the "settling-down" process in real life: an initial exploration of sub-communities before settling down into a few niches. However, we find that the users in our data continually post in new communities; moreover, as time goes on, they post increasingly evenly among a more diverse set of smaller communities. Interestingly, it seems that users that eventually leave the community are "destined" to do so from the very beginning, in the sense of showing significantly different "wandering" patterns very early on in their trajectories; this finding has potentially important design implications for community maintainers. Our multi-community perspective also allows us to investigate the "situation vs. personality" debate from language usage across different communities.

Connected through hyperedge HE-1 (induced by source paper "content removal as a moderation strategy compliance and other outcomes in the changemyview community"):
  with members:
    - "trajectories of blocked community members redemption recidivism and departure"
    - "trouble on the horizon forecasting the derailment of online conversations as they develop"
    - "mind your pov convergence of articles and editors towards wikipedia s neutrality norm"
    - "forecasting the presence and intensity of hostility on instagram using linguistic and social features"
    - "reducing gender bias in abusive language detection"
    - "conversations gone awry detecting early signs of conversational failure"
    - "a warm welcome matters the link between social feedback and weight loss in r loseit"
    - "measuring offensive speech in online political discourse"

Connected through hyperedge HE-2 (induced by source paper "are all successful communities alike characterizing and predicting the success of online communities"):
  with members:
    - "network structure efficiency and performance in wikiprojects"
    - "tracing community genealogy how new communities emerge from the old"
    - "caveat emptor computational social science large scale missing data in a widely published reddit corpus"
    - "a warm welcome matters the link between social feedback and weight loss in r loseit"
    - "loyalty in online communities"
    - "social networks under stress"
    - "the effect of social feedback in a reddit weight loss community"
    - "the lifecycles of apps in a social ecosystem"

Connected through hyperedge HE-3 (induced by source paper "asking the right question inferring advice seeking intentions from personal narratives"):
  with members:
    - "modeling naive psychology of characters in simple commonsense stories"
    - "story ending generation with incremental encoding and commonsense knowledge"
    - "learning to ask good questions ranking clarification questions using neural expected value of perfect information"
    - "coqa a conversational question answering challenge"
    - "quac question answering in context"
    - "learning to ask neural question generation for reading comprehension"
    - "supervised learning of universal sentence representations from natural language inference data"
    - "text summarization techniques a brief survey"

Connected through hyperedge HE-4 (induced by source paper "dream a challenge dataset and models for dialogue based reading comprehension"):
  with members:
    - "spoken squad a study of mitigating the impact of speech recognition errors on listening comprehension"
    - "coqa a conversational question answering challenge"
    - "multi range reasoning for machine comprehension"
    - "odsqa open domain spoken question answering dataset"
    - "quac question answering in context"
    - "triviaqa a large scale distantly supervised challenge dataset for reading comprehension"
    - "verb physics relative physical knowledge of actions and objects"
    - "the narrativeqa reading comprehension challenge"

Connected through hyperedge HE-5 (induced by source paper "intergroup contact in the wild characterizing language differences between intergroup and single group members in nba related discussion forums"):
  with members:
    - "this is why we play characterizing online fan communities of the nba teams"
    - "community interaction and conflict on the web"
    - "extracting inter community conflicts in reddit"
    - "me my echo chamber and i introspection on social media polarization"
    - "automated hate speech detection and the problem of offensive language"
    - "anyone can become a troll causes of trolling behavior in online discussions"
    - "antisocial behavior in online discussion communities"
    - "stfu noob predicting crowdsourced decisions on toxic behavior in online games"

Connected through hyperedge HE-6 (induced by source paper "firsthand opiates abuse on social media monitoring geospatial patterns of interest through a digital cohort"):
  with members:
    - "the anatomy of reddit an overview of academic research"
    - "caveat emptor computational social science large scale missing data in a widely published reddit corpus"
    - "twitter for sparking a movement reddit for sharing the moment metoo through the lens of social media"
    - "a web of hate tackling hateful speech in online social spaces"
    - "the impact of crowds on news engagement a reddit case study"
    - "science askscience and badscience on the coexistence of highly related communities"
    - "query expansion with locally trained word embeddings"
    - "navigating the massive world of reddit using backbone networks to map user interests in social media"

Connected through hyperedge HE-7 (induced by source paper "incentivized blockchain based social media platforms a case study of steemit"):
  with members:
    - "a puff of steem security analysis of decentralized content curation"
    - "the anatomy of reddit an overview of academic research"
    - "deep neural networks for bot detection"
    - "consumers and curators browsing and voting patterns on reddit"
    - "science askscience and badscience on the coexistence of highly related communities"
    - "evidence of online performance deterioration in user sessions on reddit"
    - "the rise of social bots"
    - "popularity and quality in social news aggregators a study of reddit and hacker news"

Connected through hyperedge HE-8 (induced by source paper "modelling structure and predicting dynamics of discussion threads in online boards"):
  with members:
    - "tideh time dependent hawkes process for predicting retweet dynamics"
    - "local variation of hashtag spike trains and popularity in twitter"
    - "seismic a self exciting point process model for predicting tweet popularity"
    - "modeling and predicting popularity dynamics via reinforced poisson processes"
    - "can cascades be predicted"
    - "a likelihood based framework for the analysis of discussion threads"
    - "quantifying long term scientific impact"
    - "from user comments to on line conversations"

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)