human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "authorship analysis of specialized vs diversified research output"):
  Abstract: Abstract   The present work investigates the relations between amplitude and type of collaboration (intramural, extramural domestic or international) and output of specialized versus diversified research. By specialized or diversified research, we mean within or beyond the author’s dominant research topic. The field of observation is the scientific production over five years from about 23,500 academics. The analyses are conducted at the aggregate and disciplinary level. The results lead to the conclusion that in general, the output of diversified research is no more frequently the fruit of collaboration than is specialized research. At the level of the particular collaboration types, international collaborations weakly underlie the specialized kind of research output; on the contrary, extramural domestic and intramural collaborations are weakly associated with diversified research. While the weakness of association remains, exceptions are observed at the level of the individual disciplines.

Includes members:
  Member "diversification versus specialization in scientific research which strategy pays off":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "when research assessment exercises leave room for opportunistic behavior by the subjects under evaluation")
  Member "the effects of gender age and academic rank on research diversification":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "diversification versus specialization in scientific research which strategy pays off")
  Member "the effect of multidisciplinary collaborations on research diversification":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "diversification versus specialization in scientific research which strategy pays off")
  Member "do interdisciplinary research teams deliver higher gains to science":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "the differing meanings of indicators under different policy contexts the case of internationalisation")
  Member "specialization versus diversification in research activities the extent intensity and relatedness of field diversification by individual scientists":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "diversification versus specialization in scientific research which strategy pays off")
  Member "the relationship among research productivity research collaboration and their determinants":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "china may need to support more small teams in scientific research")
  Member "does your surname affect the citability of your publications":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "the effect of multidisciplinary collaborations on research diversification")
  Member "variation in research collaboration patterns across academic ranks":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "the collaboration behavior of top scientists")

Question: Please tell me which class the source paper 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)