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: "assessing scientific research performance and impact with single indices"
  Abstract: We provide a comprehensive and critical review of the h-index and its most important modifications proposed in the literature, as well as of other similar indicators measuring research output and impact. Extensions of some of these indices are presented and illustrated.

Connected through hyperedge HE-1 (induced by source paper "an empirical and theoretical critique of the euclidean index"):
  with members:
    - "professional and citizen bibliometrics complementarities and ambivalences in the development and use of indicators"
    - "counting publications and citations is more always better"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "the inconsistency of the h index"
    - "a principal component analysis of 39 scientific impact measures"
    - "citation counting citation ranking and h index of human computer interaction researchers a comparison between scopus and web of science"

Connected through hyperedge HE-2 (induced by source paper "a framework for the measurement and prediction of an individual scientist s performance"):
  with members:
    - "restricting the h index to a publication and citation time window a case study of a timed hirsch index"
    - "how do you define and measure research productivity"
    - "how to evaluate individual researchers working in the natural and life sciences meaningfully a proposal of methods based on percentiles of citations"
    - "individual research performance a proposal for comparing apples to oranges"
    - "a systematic empirical comparison of different approaches for normalizing citation impact indicators"
    - "the inconsistency of the h index"

Connected through hyperedge HE-3 (induced by source paper "categorizing hirsch index variants"):
  with members:
    - "classification and powerlaws the logarithmic transformation"

Connected through hyperedge HE-4 (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"

Connected through hyperedge HE-5 (induced by source paper "a review of the characteristics of 108 author level bibliometric indicators"):
  with members:
    - "the google scholar experiment how to index false papers and manipulate bibliometric indicators"
    - "caveats for using statistical significance tests in research assessments"
    - "on the calculation of percentile based bibliometric indicators"
    - "some modifications to the snip journal impact indicator"
    - "the inconsistency of the h index"
    - "discovering author impact a pagerank perspective"
    - "measuring contextual citation impact of scientific journals"
    - "on the robustness of the h index"

Connected through hyperedge HE-6 (induced by source paper "how to evaluate individual researchers working in the natural and life sciences meaningfully a proposal of methods based on percentiles of citations"):
  with members:
    - "testing the trade off between productivity and quality in research activities"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "a heuristic approach to author name disambiguation in bibliometrics databases for large scale research assessments"
    - "assessing the varying level of impact measurement accuracy as a function of the citation window length"
    - "evaluating research from informed peer review to bibliometrics"
    - "the inconsistency of the h index"

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.IR(Information Retrieval)