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: "the sjr indicator a new indicator of journals scientific prestige"
  Abstract: This work was financed by the Junta de Extremadura - Consejeria de Educacion Ciencia & Tecnologia and the Fondo Social Europeo as part of research project PRI06A200, and by the Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica 2008-2011 and the Fondo Europeo de Desarrollo Regional (FEDER) as part of research projects TIN2008-06514-C02-01 and TIN2008-06514-C02-02.

Connected through hyperedge HE-1 (induced by source paper "individual bibliometric assessment university of vienna from numbers to multidimensional profiles"):
  with members:
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-2 (induced by source paper "an indicator of journal impact that is based on calculating a journal s percentage of highly cited publications"):
  with members:
    - "rivals for the crown reply to opthof and leydesdorff"
    - "measuring contextual citation impact of scientific journals"

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"
    - "alternatives to the journal impact factor i3 and the top 10 or top 25 of the most highly cited papers"
    - "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"

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"
    - "alternatives to the journal impact factor i3 and the top 10 or top 25 of the most highly cited papers"
    - "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"

Connected through hyperedge HE-5 (induced by source paper "research status and trends in operations research and management science or ms journals a bibliometric analysis based on the web of science database 2001 2012"):
  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"
    - "measuring contextual citation impact of scientific journals"

Connected through hyperedge HE-6 (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"
    - "alternatives to the journal impact factor i3 and the top 10 or top 25 of the most highly cited papers"
    - "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-7 (induced by source paper "the academic social network"):
  with members:
    - "pagerank for ranking authors in co citation networks"
    - "the relation between eigenfactor audience factor and influence weight"

Connected through hyperedge HE-8 (induced by source paper "the weakening relationship between the impact factor and papers citations in the digital age"):
  with members:
    - "measuring contextual citation impact of scientific journals"

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)