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 "a bird s eye view of scientific trading dependency relations among fields of science"):
  Abstract: We use a trading metaphor to study knowledge transfer in the sciences as well as the social sciences. The metaphor comprises four dimensions: (a) Discipline Self-dependence, (b) Knowledge Exports/Imports, (c) Scientific Trading Dynamics, and (d) Scientific Trading Impact. This framework is applied to a dataset of 221 Web of Science subject categories. We find that: (i) the Scientific Trading Impact and Dynamics of Materials Science And Transportation Science have increased; (ii) Biomedical Disciplines, Physics, And Mathematics are significant knowledge exporters, as is Statistics & Probability; (iii) in the social sciences, Economics, Business, Psychology, Management, And Sociology are important knowledge exporters; (iv) Discipline Self-dependence is associated with specialized domains which have ties to professional practice (e.g., Law, Ophthalmology, Dentistry, Oral Surgery & Medicine, Psychology, Psychoanalysis, Veterinary Sciences, And Nursing).

Includes members:
  Member "global maps of science based on the new web of science categories":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "science through wikipedia a novel representation of open knowledge through co citation networks")
  Member "structuration by intellectual organization the configuration of knowledge in relations among structural components in networks of science":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "information meaning and intellectual organization in networks of inter human communication")
  Member "the import and export of cognitive science":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "the balance of knowledge flows")
  Member "science overlay maps a new tool for research policy and library management":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "science through wikipedia a novel representation of open knowledge through co citation networks")

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)