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: "edited volumes monographs and book chapters in the book citation index bkci and science citation index sci sosci a hci"
  Abstract: In 2011, Thomson-Reuters introduced the Book Citation Index (BKCI) as part of the Science Citation Index (SCI). The interface of the Web of Science version 5 enables users to search for both "Books" and "Book Chapters" as new categories. Books and book chapters, however, were always among the cited references, and book chapters have been included in the database since 2005. We explore the two categories with both BKCI and SCI, and in the sister social sciences (SoSCI) and the arts & humanities (A&HCI) databases. Book chapters in edited volumes can be highly cited. Books contain many citing references but are relatively less cited. This may find its origin in the slower circulation of books than of journal articles. It is possible to distinguish between monographs and edited volumes among the "Books" scientometrically. Monographs may be underrated in terms of citation impact or overrated using publication performance indicators because individual chapters are counted as contributions separately in terms of articles, reviews, and/or book chapters.

Connected through hyperedge HE-1 (induced by source paper "can microsoft academic help to assess the citation impact of academic books"):
  with members:
    - "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"
    - "citation analysis with microsoft academic"
    - "the coverage of microsoft academic analyzing the publication output of a university"
    - "the precision of the arithmetic mean geometric mean and percentiles for citation data an experimental simulation modelling approach"

Connected through hyperedge HE-2 (induced by source paper "filling the citation gap measuring the multidimensional impact of the academic book at institutional level with plumx"):
  with members:
    - "grand challenges in altmetrics heterogeneity data quality and dependencies"
    - "scholarly use of social media and altmetrics a review of the literature"
    - "analyzing the citation characteristics of books edited books book series and publisher types in the book citation index"
    - "do altmetrics correlate with citations extensive comparison of altmetric indicators with citations from a multidisciplinary perspective"
    - "do altmetrics point to the broader impact of research an overview of benefits and disadvantages of altmetrics"
    - "new data new possibilities exploring the insides of altmetric com"
    - "most borrowed is most cited library loan statistics as a proxy for monograph selection in citation indexes"
    - "mapping citation patterns of book chapters in the book citation index"

Connected through hyperedge HE-3 (induced by source paper "plumx as a potential tool to assess the macroscopic multidimensional impact of books"):
  with members:
    - "measuring book impact based on the multi granularity online review mining"
    - "analyzing the citation characteristics of books edited books book series and publisher types in the book citation index"
    - "new data new possibilities exploring the insides of altmetric com"
    - "most borrowed is most cited library loan statistics as a proxy for monograph selection in citation indexes"
    - "mapping citation patterns of book chapters in the book citation index"
    - "towards a book publishers citation reports first approach using the book citation index"

Connected through hyperedge HE-4 (induced by source paper "analyzing the citation characteristics of books edited books book series and publisher types in the book citation index"):
  with members:
    - "mapping citation patterns of book chapters in the book citation index"
    - "towards a book publishers citation reports first approach using the book citation index"

Connected through hyperedge HE-5 (induced by source paper "mapping citation patterns of book chapters in the book citation index"):
  with members:
    - "towards a book publishers citation reports first approach using the book citation index"

Connected through hyperedge HE-6 (induced by source paper "field normalized impact factors a comparison of rescaling versus fractionally counted ifs"):
  with members:
    - "the weakening relationship between the impact factor and papers citations in the digital age"
    - "alternatives to the journal impact factor i3 and the top 10 or top 25 of the most highly cited papers"
    - "impact factor outdated artefact or stepping stone to journal certification"
    - "the leiden ranking 2011 2012 data collection indicators and interpretation"
    - "how can journal impact factors be normalized across fields of science an assessment in terms of percentile ranks and fractional counts"
    - "fractional counting of citations in research evaluation a cross and interdisciplinary assessment of the tsinghua university in beijing"
    - "testing differences statistically with the leiden ranking"
    - "universality of citation distributions revisited"

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)