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: "citation analysis with microsoft academic"
  Abstract: We explore if and how Microsoft Academic (MA) could be used for bibliometric analyses. First, we examine the Academic Knowledge API (AK API), an interface to access MA data, and compare it to Google Scholar (GS). Second, we perform a comparative citation analysis of researchers by normalizing data from MA and Scopus. We find that MA offers structured and rich metadata, which facilitates data retrieval, handling and processing. In addition, the AK API allows retrieving frequency distributions of citations. We consider these features to be a major advantage of MA over GS. However, we identify four main limitations regarding the available metadata. First, MA does not provide the document type of a publication. Second, the "fields of study" are dynamic, too specific and field hierarchies are incoherent. Third, some publications are assigned to incorrect years. Fourth, the metadata of some publications did not include all authors. Nevertheless, we show that an average-based indicator (i.e. the journal normalized citation score; JNCS) as well as a distribution-based indicator (i.e. percentile rank classes; PR classes) can be calculated with relative ease using MA. Hence, normalization of citation counts is feasible with MA. The citation analyses in MA and Scopus yield uniform results. The JNCS and the PR classes are similar in both databases, and, as a consequence, the evaluation of the researchers' publication impact is congruent in MA and Scopus. Given the fast development in the last year, we postulate that MA has the potential to be used for full-fledged bibliometric analyses.

Connected through hyperedge HE-1 (induced by source paper "influence flowers of academic entities"):
  with members:
    - "a web scale system for scientific knowledge exploration"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "a framework for an ego centered and time aware visualization of relations in arbitrary data repositories"

Connected through hyperedge HE-2 (induced by source paper "field normalization of scientometric indicators"):
  with members:
    - "relative citation ratio rcr an empirical attempt to study a new field normalized bibliometric indicator"
    - "three practical field normalised alternative indicator formulae for research evaluation"
    - "a comparison of university performance scores and ranks by mncs and fss"
    - "a farewell to the mncs and like size independent indicators"
    - "citation score normalized by cited references csncr the introduction of a new citation impact indicator"
    - "national disciplinary and temporal variations in the extent to which articles with more authors have more impact evidence from a geometric field normalised citation indicator"
    - "quality versus quantity in scientific impact"
    - "large scale analysis of the accuracy of the journal classification systems of web of science and scopus"

Connected through hyperedge HE-3 (induced by source paper "dimensions a competitor to scopus and the web of science"):
  with members:
    - "microsoft academic automatic document searches accuracy for journal articles and suitability for citation analysis"
    - "can we use google scholar to identify highly cited documents"
    - "the journal coverage of web of science and scopus a comparative analysis"
    - "more precise methods for national research citation impact comparisons"
    - "a review of the literature on citation impact indicators"
    - "tweets vs mendeley readers how do these two social media metrics differ"
    - "do altmetrics correlate with citations extensive comparison of altmetric indicators with citations from a multidisciplinary perspective"
    - "the google scholar experiment how to index false papers and manipulate bibliometric indicators"

Connected through hyperedge HE-4 (induced by source paper "can microsoft academic assess the early citation impact of in press articles a multi discipline exploratory analysis"):
  with members:
    - "microsoft academic automatic document searches accuracy for journal articles and suitability for citation analysis"
    - "microsoft academic a multidisciplinary comparison of citation counts with scopus and mendeley for 29 journals"
    - "three practical field normalised alternative indicator formulae for research evaluation"
    - "influencia de la fecha de publicacion online de los articulos cientificos en los indicadores bibliometricos"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "when is an article actually published an analysis of online availability publication and indexation dates"
    - "more precise methods for national research citation impact comparisons"
    - "plagiarism detection in arxiv"

Connected through hyperedge HE-5 (induced by source paper "visualizing the context of citations referencing papers published by eugene garfield a new type of keyword co occurrence analysis"):
  with members:
    - "citation based clustering of publications using citnetexplorer and vosviewer"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "the research space using the career paths of scholars to predict the evolution of the research output of individuals institutions and nations"
    - "a review of theory and practice in scientometrics"
    - "methods for the generation of normalized citation impact scores in bibliometrics which method best reflects the judgements of experts"
    - "measuring impact in research evaluations a thorough discussion of methods for effects of and problems with impact measurements"
    - "citation content analysis cca a framework for syntactic and semantic analysis of citation content"
    - "text mining and visualization using vosviewer"

Connected through hyperedge HE-6 (induced by source paper "core elements in the process of citing publications conceptual overview of the literature"):
  with members:
    - "the number of linked references of publications in microsoft academic in comparison with the web of science"
    - "characterizing in text citations in scientific articles a large scale analysis"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "excellence networks in science a web based application based on bayesian multilevel logistic regression bmlr for the identification of institutions collaborating successfully"
    - "on the causes of subject specific citation rates in web of science"
    - "what is the effect of country specific characteristics on the research performance of scientific institutions using multi level statistical models to rank and map universities and research focused institutions worldwide"
    - "how to evaluate individual researchers working in the natural and life sciences meaningfully a proposal of methods based on percentiles of citations"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"

Connected through hyperedge HE-7 (induced by source paper "microsoft academic automatic document searches accuracy for journal articles and suitability for citation analysis"):
  with members:
    - "the number of linked references of publications in microsoft academic in comparison with the web of science"
    - "microsoft academic a multidisciplinary comparison of citation counts with scopus and mendeley for 29 journals"
    - "three practical field normalised alternative indicator formulae for research evaluation"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "the journal coverage of web of science and scopus a comparative analysis"
    - "geometric journal impact factors correcting for individual highly cited articles"
    - "the google scholar experiment how to index false papers and manipulate bibliometric indicators"
    - "towards a new crown indicator some theoretical considerations"

Connected through hyperedge HE-8 (induced by source paper "the concordance of field normalized scores based on web of science and microsoft academic data a case study in computer sciences"):
  with members:
    - "the number of linked references of publications in microsoft academic in comparison with the web of science"
    - "can microsoft academic assess the early citation impact of in press articles a multi discipline exploratory analysis"
    - "microsoft academic automatic document searches accuracy for journal articles and suitability for citation analysis"
    - "microsoft academic a multidisciplinary comparison of citation counts with scopus and mendeley for 29 journals"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "a review of the literature on citation impact indicators"
    - "towards a new crown indicator some theoretical considerations"

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)