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: "citations versus journal impact factor as proxy of quality could the latter ever be preferable"
  Abstract: In recent years bibliometricians have paid increasing attention to research evaluation methodological problems, among these being the choice of the most appropriate indicators for evaluating quality of scientific publications, and thus for evaluating the work of single scientists, research groups and entire organizations. Much literature has been devoted to analyzing the robustness of various indicators, and many works warn against the risks of using easily available and relatively simple proxies, such as journal impact factor. The present work continues this line of research, examining whether it is valid that the use of the impact factor should always be avoided in favour of citations, or whether the use of impact factor could be acceptable, even preferable, in certain circumstances. The evaluation was conducted by observing all scientific publications in the hard sciences by Italian universities, for the period 2004–2007. Performance sensitivity analyses were conducted with changing indicators of quality and years of observation.

Connected through hyperedge HE-1 (induced by source paper "comparing the impact of subfields in scientific journals"):
  with members:
    - "practical method to reclassify web of science articles into unique subject categories and broad disciplines"
    - "recency predicts bursts in the evolution of author citations"
    - "patterns of authors contribution in scientific manuscripts"
    - "knowledge acquisition a complex networks approach"
    - "citation success index an intuitive pair wise journal comparison metric"
    - "concentric network symmetry grasps authors styles in word adjacency networks"
    - "a review of the literature on citation impact indicators"
    - "indicators of the interdisciplinarity of journals diversity centrality and citations"

Connected through hyperedge HE-2 (induced by source paper "evaluating research and researchers by the journal impact factor is it better than coin flipping"):
  with members:
    - "systematic analysis of agreement between metrics and peer review in the uk ref"
    - "probability and expected frequency of breakthroughs a robust method of research assessment based on the double rank property of citation distributions"
    - "core elements in the process of citing publications conceptual overview of the literature"
    - "use of the journal impact factor for assessing individual articles need not be wrong"
    - "can the journal impact factor be used as a criterion for the selection of junior researchers a large scale empirical study based on researcherid data"
    - "citation success index an intuitive pair wise journal comparison metric"
    - "citation count distributions for large monodisciplinary journals"
    - "citations indicators of quality the impact fallacy"

Connected through hyperedge HE-3 (induced by source paper "predicting publication long term impact through a combination of early citations and journal impact factor"):
  with members:
    - "revisiting the scientometric conceptualization of impact and its measurement"
    - "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"
    - "predicting the long term citation impact of recent publications"
    - "how to improve the prediction based on citation impact percentiles for years shortly after the publication date"
    - "quantifying long term scientific impact"
    - "revisiting the scaling of citations for research assessment"
    - "assessing the varying level of impact measurement accuracy as a function of the citation window length"

Connected through hyperedge HE-4 (induced by source paper "inferring the causal effect of journals on citations"):
  with members:
    - "the journal impact factor a brief history critique and discussion of adverse effects"
    - "use of the journal impact factor for assessing individual articles need not be wrong"
    - "predicting the long term citation impact of recent publications"
    - "arxiv e prints and the journal of record an analysis of roles and relationships"
    - "the weakening relationship between the impact factor and papers citations in the digital age"

Connected through hyperedge HE-5 (induced by source paper "revisiting the scientometric conceptualization of impact and its measurement"):
  with members:
    - "predicting publication long term impact through a combination of early citations and journal impact factor"
    - "core elements in the process of citing publications conceptual overview of the literature"
    - "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"
    - "scholarly use of social media and altmetrics a review of the literature"
    - "citations indicators of quality the impact fallacy"
    - "a review of theory and practice in scientometrics"
    - "predicting the long term citation impact of recent publications"

Connected through hyperedge HE-6 (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"
    - "a further step forward in measuring journals scientific prestige the sjr2 indicator"
    - "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"

Connected through hyperedge HE-7 (induced by source paper "do citations and readership identify seminal publications"):
  with members:
    - "incidental or influential challenges in automatically detecting citation importance using publication full texts"
    - "measuring academic influence not all citations are equal"
    - "a review of the literature on citation impact indicators"
    - "do altmetrics point to the broader impact of research an overview of benefits and disadvantages of altmetrics"
    - "coverage and adoption of altmetrics sources in the bibliometric community"
    - "the validation of advanced bibliometric indicators through peer assessments a comparative study using data from incites and f1000"

Connected through hyperedge HE-8 (induced by source paper "bibliometric evaluation of research performance where do we stand"):
  with members:
    - "measuring science irresistible temptations easy shortcuts and dangerous consequences"
    - "a sensitivity analysis of researchers productivity rankings to the time of citation observation"
    - "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"
    - "inefficiency in selecting products for submission to national research assessment exercises"
    - "individual research performance a proposal for comparing apples to oranges"
    - "what is the appropriate length of the publication period over which to assess research performance"
    - "revisiting the scaling of citations for research assessment"

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)