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: "ten year cross disciplinary comparison of the growth of open access and how it increases research citation impact"
  Abstract: Lawrence (2001)found computer science articles that were openly accessible (OA) on the Web were cited more. We replicated this in physics. We tested 1,307,038 articles published across 12 years (1992-2003) in 10 disciplines (Biology, Psychology, Sociology, Health, Political Science, Economics, Education, Law, Business, Management). A robot trawls the Web for full-texts using reference metadata ISI citation data (signal detectability d'=2.45; bias = 0.52). Percentage OA (relative to total OA + NOA) articles varies from 5%-16% (depending on discipline, year and country) and is slowly climbing annually (correlation r=.76, sample size N=12, probability p   .90, N=12, p < .0005) and the effect is greater with the more highly cited articles (r = .98, N=6, p < .005). Causality cannot be determined from these data, but our prior finding of a similar pattern in physics, where percent OA is much higher (and even approaches 100% in some subfields), makes it unlikely that the OA citation advantage is merely or mostly a self-selection bias (for making only one's better articles OA). Further research will analyze the effect's timing, causal components and relation to other variables.

Connected through hyperedge HE-1 (induced by source paper "on the relationships between bibliographic characteristics of scientific documents and citation and mendeley readership counts a large scale analysis of web of science publications"):
  with members:
    - "on the differences between citations and altmetrics an investigation of factors driving altmetrics vs citations for finnish articles"
    - "what makes papers visible on social media an analysis of various document characteristics"
    - "mendeley readership as a filtering tool to identify highly cited publications"
    - "the discretised lognormal and hooked power law distributions for complete citation data best options for modelling and regression"
    - "national disciplinary and temporal variations in the extent to which articles with more authors have more impact evidence from a geometric field normalised citation indicator"
    - "interpreting altmetrics viewing acts on social media through the lens of citation and social theories"
    - "scholarly use of social media and altmetrics a review of the literature"
    - "regression for citation data an evaluation of different methods"

Connected through hyperedge HE-2 (induced by source paper "green open access in computer science an exploratory study on author based self archiving awareness practice and inhibitors"):
  with members:
    - "a framework for systematic analysis of open access journals and its application in software engineering and information systems"
    - "green and gold open access percentages and growth by discipline"
    - "does the arxiv lead to higher citations and reduced publisher downloads for mathematics articles"
    - "the effect of use and access on citations"

Connected through hyperedge HE-3 (induced by source paper "self selected or mandated open access increases citation impact for higher quality research"):
  with members:
    - "use of astronomical literature a report on usage patterns"
    - "a principal component analysis of 39 scientific impact measures"
    - "offloading cognition onto cognitive technology"
    - "open access scientometrics and the uk research assessment exercise"
    - "does the arxiv lead to higher citations and reduced publisher downloads for mathematics articles"
    - "open access does not increase citations for research articles from the astrophysical journal"
    - "effect of e printing on citation rates in astronomy and physics"
    - "the effect of use and access on citations"

Connected through hyperedge HE-4 (induced by source paper "confirmation bias and the open access advantage some methodological suggestions for the davis citation study"):
  with members:
    - "author choice open access publishing in the biological and medical literature a citation analysis"
    - "citation advantage for oa self archiving is independent of journal impact factor article age and number of co authors"
    - "does the arxiv lead to higher citations and reduced publisher downloads for mathematics articles"
    - "the open access citation advantage quality advantage or quality bias"
    - "open access does not increase citations for research articles from the astrophysical journal"
    - "the effect of use and access on citations"

Connected through hyperedge HE-5 (induced by source paper "we cite as we communicate a communication model for the citation process"):
  with members:
    - "modeling the dynamics of social networks"
    - "modeling hypermedia based communication"

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.DL(Digital Libraries)