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 concept analysis cca a new form of citation analysis revealing the usefulness of concepts for other researchers illustrated by two exemplary case studies including classic books by thomas s kuhn and karl r popper"
  Abstract: In recent years, the full text of papers are increasingly available electronically which opens up the possibility of quantitatively investigating citation contexts in more detail. In this study, we introduce a new form of citation analysis, which we call citation concept analysis (CCA). CCA is intended to reveal the cognitive impact certain concepts -- published in a document -- have on the citing authors. It counts the number of times the concepts are mentioned (cited) in the citation context of citing publications. We demonstrate the method using three classical examples: (1) The structure of scientific revolutions by Thomas S. Kuhn, (2) The logic of scientific discovery - Logik der Forschung: Zur Erkenntnistheorie der modernen Naturwissenschaft in German -, and (3) Conjectures and refutations: the growth of scientific knowledge by Karl R. Popper. It is not surprising -- as our results show -- that Kuhn's "paradigm" concept has had a significant impact. What is surprising is that it has had such a disproportionately larger impact than Kuhn's other concepts, e.g., "scientific revolution". The paradigm concept accounts for over 80% of the concept-related citations to Kuhn's work, and its impact is resilient across all disciplines and over time. With respect to Popper, "falsification" is the most used concept derived from his books. Falsification, after all, is the cornerstone of Popper's critical rationalism.

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)