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: "central indexes to the citation distribution a complement to the h index"
  Abstract: The citation distribution of a researcher shows the impact of their production and determines the success of their scientific career. However, its application in scientific evaluation is difficult due to the bi-dimensional character of the distribution. Some bibliometric indexes that try to synthesize in a numerical value the principal characteristics of this distribution have been proposed recently. In contrast with other bibliometric measures, the biases that the distribution tails provoke, are reduced by the h-index. However, some limitations in the discrimination among researchers with different publication habits are presented in this index. This index penalizes selective researchers, distinguished by the large number of citations received, as compared to large producers. In this work, two original sets of indexes, the central area indexes and the central interval indexes, that complement the h-index to include the central shape of the citation distribution, are proposed and compared.

Connected through hyperedge HE-1 (induced by source paper "h α an index to quantify an individual s scientific leadership"):
  with members:
    - "a modification to hirsch index allowing comparisons across different scientific fields"
    - "assessing the true role of coauthors in the h index measure of an author scientific impact"
    - "the inconsistency of the h index"

Connected through hyperedge HE-2 (induced by source paper "h index and its alternative a review"):
  with members:
    - "restricting the h index to a publication and citation time window a case study of a timed hirsch index"
    - "a variant of the h index to measure recent performance"
    - "a review of the characteristics of 108 author level bibliometric indicators"
    - "impact vitality a measure for excellent scientists"
    - "socializing the h index"
    - "simple arithmetic versus intuitive understanding the case of the impact factor"
    - "the inconsistency of the h index"
    - "weighted indices for evaluating the quality of research with multiple authorship"

Connected through hyperedge HE-3 (induced by source paper "h_ pi the citation index for principal investigators"):
  with members:
    - "the inconsistency of the h index"

Connected through hyperedge HE-4 (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"
    - "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-5 (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"
    - "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-6 (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"
    - "measuring contextual citation impact of scientific journals"
    - "the sjr indicator a new indicator of journals scientific prestige"

Connected through hyperedge HE-7 (induced by source paper "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor"):
  with members:
    - "a recursive field normalized bibliometric performance indicator an application to the field of library and information science"
    - "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-8 (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"
    - "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"

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)