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: "a further step forward in measuring journals scientific prestige the sjr2 indicator"
  Abstract: A new size-independent indicator of scientific journal prestige, the SJR2 indicator, is proposed. This indicator takes into account not only the prestige of the citing scientific journal but also its closeness to the cited journal using the cosine of the angle between the vectors of the two journals' cocitation profiles. To eliminate the size effect, the accumulated prestige is divided by the fraction of the journal's citable documents, thus eliminating the decreasing tendency of this type of indicator and giving meaning to the scores. Its method of computation is described, and the results of its implementation on the Scopus 2008 dataset is compared with those of an ad hoc Journal Impact Factor, JIF(3y), and SNIP, the comparison being made both overall and within specific scientific areas. All three, the SJR2 indicator, the SNIP indicator and the JIF distributions, were found to fit well to a logarithmic law. Although the three metrics were strongly correlated, there were major changes in rank. In addition, the SJR2 was distributed more equalized than the JIF by Subject Area and almost as equalized as the SNIP, and better than both at the lower level of Specific Subject Areas. The incorporation of the cosine increased the values of the flows of prestige between thematically close journals.

Connected through hyperedge HE-1 (induced by source paper "prevalence of potentially predatory publishing in scopus on the country level"):
  with members:
    - "trends in russian research output indexed in scopus and web of science"
    - "the journal coverage of web of science and scopus a comparative analysis"
    - "a new methodology for comparing google scholar and scopus"
    - "a review of the literature on citation impact indicators"
    - "some modifications to the snip journal impact indicator"

Connected through hyperedge HE-2 (induced by source paper "field normalization of scientometric indicators"):
  with members:
    - "relative citation ratio rcr an empirical attempt to study a new field normalized bibliometric indicator"
    - "citation analysis with microsoft academic"
    - "three practical field normalised alternative indicator formulae for research evaluation"
    - "a comparison of university performance scores and ranks by mncs and fss"
    - "a farewell to the mncs and like size independent indicators"
    - "citation score normalized by cited references csncr the introduction of a new citation impact indicator"
    - "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"
    - "quality versus quantity in scientific impact"

Connected through hyperedge HE-3 (induced by source paper "do all citations value the same valuing citations by the value of the citing items"):
  with members:
    - "revisiting the scientometric conceptualization of impact and its measurement"
    - "a farewell to the mncs and like size independent indicators"
    - "refrain from adopting the combination of citation and journal metrics to grade publications as used in the italian national research assessment exercise vqr 2011 2014"
    - "how do you define and measure research productivity"
    - "revisiting the scaling of citations for research assessment"
    - "applying weighted pagerank to author citation networks"
    - "assessing the varying level of impact measurement accuracy as a function of the citation window length"
    - "towards a new crown indicator some theoretical considerations"

Connected through hyperedge HE-4 (induced by source paper "the journal impact factor a brief history critique and discussion of adverse effects"):
  with members:
    - "use of the journal impact factor for assessing individual articles need not be wrong"
    - "rise of the rest the growing impact of non elite journals"
    - "the weakening relationship between the impact factor and papers citations in the digital age"
    - "some modifications to the snip journal impact indicator"
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-5 (induced by source paper "use of the journal impact factor for assessing individual articles need not be wrong"):
  with members:
    - "are the discretised lognormal and hooked power law distributions plausible for citation data"
    - "the discretised lognormal and hooked power law distributions for complete citation data best options for modelling and regression"
    - "a review of the literature on citation impact indicators"
    - "impact factor outdated artefact or stepping stone to journal certification"
    - "some modifications to the snip journal impact indicator"
    - "universality of citation distributions revisited"
    - "citations versus journal impact factor as proxy of quality could the latter ever be preferable"
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-6 (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-7 (induced by source paper "introducing citedreferencesexplorer crexplorer a program for reference publication year spectroscopy with cited references standardization"):
  with members:
    - "identification of long term concept symbols among citations can documents be clustered in terms of common intellectual histories"
    - "citnetexplorer a new software tool for analyzing and visualizing citation networks"
    - "detecting the historical roots of research fields by reference publication year spectroscopy rpys"
    - "referenced publication years spectroscopy applied to imetrics scientometrics journal of informetrics and a relevant subset of jasist"
    - "the use of percentiles and percentile rank classes in the analysis of bibliometric data opportunities and limits"

Connected through hyperedge HE-8 (induced by source paper "a review of the literature on citation impact indicators"):
  with members:
    - "a sensitivity analysis of researchers productivity rankings to the time of citation observation"
    - "the precision of the arithmetic mean geometric mean and percentiles for citation data an experimental simulation modelling approach"
    - "the journal coverage of web of science and scopus a comparative analysis"
    - "measuring academic influence not all citations are equal"
    - "a review of theory and practice in scientometrics"
    - "comprehensive indicator comparisons intelligible to non experts the case of two snip versions"
    - "methods for estimating the size of google scholar"
    - "large scale analysis of the accuracy of the journal classification systems of web of science and scopus"

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)