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 recursive field normalized bibliometric performance indicator an application to the field of library and information science"
  Abstract: Two commonly used ideas in the development of citation-based research performance indicators are the idea of normalizing citation counts based on a field classification scheme and the idea of recursive citation weighing (like in PageRank-inspired indicators). We combine these two ideas in a single indicator, referred to as the recursive mean normalized citation score indicator, and we study the validity of this indicator. Our empirical analysis shows that the proposed indicator is highly sensitive to the field classification scheme that is used. The indicator also has a strong tendency to reinforce biases caused by the classification scheme. Based on these observations, we advise against the use of indicators in which the idea of normalization based on a field classification scheme and the idea of recursive citation weighing are combined.

Connected through hyperedge HE-1 (induced by source paper "patterns of authors contribution in scientific manuscripts"):
  with members:
    - "using network science and text analytics to produce surveys in a scientific topic"
    - "authorship recognition via fluctuation analysis of network topology and word intermittency"
    - "a review of the literature on citation impact indicators"
    - "restricting the h index to a publication and citation time window a case study of a timed hirsch index"
    - "a systematic empirical comparison of different approaches for normalizing citation impact indicators"

Connected through hyperedge HE-2 (induced by source paper "the operationalization of fields as wos subject categories wcs in evaluative bibliometrics the cases of library and information science and science technology studies"):
  with members:
    - "the role of handbooks in knowledge creation and diffusion a case of science and technology studies"
    - "brics countries and scientific excellence a bibliometric analysis of most frequently cited papers"
    - "the european union china and the united states in the top 1 and top 10 layers of most frequently cited publications competition and collaborations"
    - "how to evaluate individual researchers working in the natural and life sciences meaningfully a proposal of methods based on percentiles of citations"
    - "information metrics imetrics a research specialty with a socio cognitive identity"
    - "global maps of science based on the new web of science categories"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "citation analysis with medical subject headings mesh using the web of knowledge a new routine"

Connected through hyperedge HE-3 (induced by source paper "the tournaments metaphor in citation impact studies power weakness ratios pwr as a journal indicator"):
  with members:
    - "the operationalization of fields as wos subject categories wcs in evaluative bibliometrics the cases of library and information science and science technology studies"
    - "information metrics imetrics a research specialty with a socio cognitive identity"
    - "a further step forward in measuring journals scientific prestige the sjr2 indicator"
    - "percentile ranks and the integrated impact indicator i3"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"
    - "towards a new crown indicator some theoretical considerations"
    - "weighted citation an indicator of an article s prestige"
    - "caveats for the journal and field normalizations in the cwts leiden evaluations of research performance"

Connected through hyperedge HE-4 (induced by source paper "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor"):
  with members:
    - "central indexes to the citation distribution a complement to the h index"
    - "scopus s source normalized impact per paper snip versus a journal impact factor based on fractional counting of citations"
    - "normalization at the field level fractional counting of citations"
    - "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"
    - "the relation between eigenfactor audience factor and influence weight"
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-5 (induced by source paper "source normalized indicators of citation impact an overview of different approaches and an empirical comparison"):
  with members:
    - "citation analysis may severely underestimate the impact of clinical research as compared to basic research"
    - "a new methodology for constructing a publication level classification system of science"
    - "how can journal impact factors be normalized across fields of science an assessment in terms of percentile ranks and fractional counts"
    - "some modifications to the snip journal impact indicator"
    - "fractional counting of citations in research evaluation a cross and interdisciplinary assessment of the tsinghua university in beijing"
    - "scopus s source normalized impact per paper snip versus a journal impact factor based on fractional counting of citations"
    - "towards a new crown indicator some theoretical considerations"
    - "severe language effect in university rankings particularly germany and france are wronged in citation based rankings"

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)