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: "alternatives to the journal impact factor i3 and the top 10 or top 25 of the most highly cited papers"
  Abstract: Journal Impact Factors (IFs) can be considered historically as the first attempt to normalize citation distributions by using averages over two years. However, it has been recognized that citation distributions vary among fields of science and that one needs to normalize for this. Furthermore, the mean-or any central-tendency statistics-is not a good representation of the citation distribution because these distributions are skewed. Important steps have been taken to solve these two problems during the last few years. First, one can normalize at the article level using the citing audience as the reference set. Second, one can use non-parametric statistics for testing the significance of differences among ratings. A proportion of most-highly cited papers (the top-10% or top-quartile) on the basis of fractional counting of the citations may provide an alternative to the current IF. This indicator is intuitively simple, allows for statistical testing, and accords with the state of the art.

Connected through hyperedge HE-1 (induced by source paper "evaluating journal quality a review of journal citation indicators and ranking in business and management"):
  with members:
    - "a review of theory and practice in scientometrics"
    - "comprehensive indicator comparisons intelligible to non experts the case of two snip versions"
    - "identifying research fields within business and management a journal cross citation analysis"
    - "a review of the literature on citation impact indicators"
    - "aggregated journal journal citation relations in scopus and web of science matched and compared in terms of networks maps and interactive overlays"
    - "methods for the generation of normalized citation impact scores in bibliometrics which method best reflects the judgements of experts"
    - "the operationalization of fields as wos subject categories wcs in evaluative bibliometrics the cases of library and information science and science technology studies"
    - "a systematic empirical comparison of different approaches for normalizing citation impact indicators"

Connected through hyperedge HE-2 (induced by source paper "a review of theory and practice in scientometrics"):
  with members:
    - "identifying research fields within business and management a journal cross citation analysis"
    - "patents as instruments for exploring innovation dynamics geographic and technological perspectives on photovoltaic cells"
    - "the operationalization of fields as wos subject categories wcs in evaluative bibliometrics the cases of library and information science and science technology studies"
    - "do altmetrics point to the broader impact of research an overview of benefits and disadvantages of altmetrics"
    - "a systematic empirical comparison of different approaches for normalizing citation impact indicators"
    - "which percentile based approach should be preferred for calculating normalized citation impact values an empirical comparison of five approaches including a newly developed citation rank approach p100"
    - "the revised snip indicator of elsevier s scopus"
    - "interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal journal citations"

Connected through hyperedge HE-3 (induced by source paper "an approach to the author citation potential measures of scientific performance which are invariant across scientific fields"):
  with members:
    - "journal topic citation potential and between field comparisons the topic normalized impact factor"
    - "impact maturity times and citation time windows the 2 year maximum journal impact factor"
    - "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor"
    - "source normalized indicators of citation impact an overview of different approaches and an empirical comparison"
    - "central indexes to the citation distribution a complement to the h index"
    - "caveats for the journal and field normalizations in the cwts leiden evaluations of research performance"
    - "indicators of the interdisciplinarity of journals diversity centrality and citations"
    - "rivals for the crown reply to opthof and leydesdorff"

Connected through hyperedge HE-4 (induced by source paper "journal topic citation potential and between field comparisons the topic normalized impact factor"):
  with members:
    - "impact maturity times and citation time windows the 2 year maximum journal impact factor"
    - "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor"
    - "source normalized indicators of citation impact an overview of different approaches and an empirical comparison"
    - "central indexes to the citation distribution a complement to the h index"
    - "indicators of the interdisciplinarity of journals diversity centrality and citations"
    - "rivals for the crown reply to opthof and leydesdorff"
    - "measuring contextual citation impact of scientific journals"
    - "can scientific journals be classified in terms of aggregated journal journal citation relations using the journal citation reports"

Connected through hyperedge HE-5 (induced by source paper "impact maturity times and citation time windows the 2 year maximum journal impact factor"):
  with members:
    - "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor"
    - "source normalized indicators of citation impact an overview of different approaches and an empirical comparison"
    - "central indexes to the citation distribution a complement to the h index"
    - "indicators of the interdisciplinarity of journals diversity centrality and citations"
    - "rivals for the crown reply to opthof and leydesdorff"
    - "measuring contextual citation impact of scientific journals"
    - "can scientific journals be classified in terms of aggregated journal journal citation relations using the journal citation reports"
    - "the sjr indicator a new indicator of journals scientific prestige"

Connected through hyperedge HE-6 (induced by source paper "the revised snip indicator of elsevier s scopus"):
  with members:
    - "a further step forward in measuring journals scientific prestige the sjr2 indicator"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "some modifications to the snip journal impact indicator"
    - "testing differences statistically with the leiden ranking"
    - "scopus s source normalized impact per paper snip versus a journal impact factor based on fractional counting of citations"
    - "the danger of pseudo science in informetrics"
    - "caveats for the journal and field normalizations in the cwts leiden evaluations of research performance"
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-7 (induced by source paper "field normalized impact factors a comparison of rescaling versus fractionally counted ifs"):
  with members:
    - "the weakening relationship between the impact factor and papers citations in the digital age"
    - "impact factor outdated artefact or stepping stone to journal certification"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "edited volumes monographs and book chapters in the book citation index bkci and science citation index sci sosci a hci"
    - "how can journal impact factors be normalized across fields of science an assessment in terms of percentile ranks and fractional counts"
    - "fractional counting of citations in research evaluation a cross and interdisciplinary assessment of the tsinghua university in beijing"
    - "testing differences statistically with the leiden ranking"
    - "universality of citation distributions revisited"

Connected through hyperedge HE-8 (induced by source paper "how can journal impact factors be normalized across fields of science an assessment in terms of percentile ranks and fractional counts"):
  with members:
    - "accounting for the uncertainty in the evaluation of percentile ranks"
    - "impact factor outdated artefact or stepping stone to journal certification"
    - "percentile ranks and the integrated impact indicator i3"
    - "fractional counting of citations in research evaluation a cross and interdisciplinary assessment of the tsinghua university in beijing"
    - "universality of citation distributions revisited"
    - "an evaluation of impacts in nanoscience nanotechnology steps towards standards for citation analysis"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"
    - "scopus s source normalized impact per paper snip versus a journal impact factor based on fractional counting of citations"

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)