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: "impact of uri canonicalization on memento count"
  Abstract: Memento TimeMaps [5] list identifiers for archival web captures (URI-Ms). When some URI-Ms are dereferenced, they redirect to a different URI-M instead of a unique representation at the datetime. This suggests that confidently obtaining an accurate count quantifying the number of non-forwarding captures for an Original Resource URI (URI-R) is not possible using a TimeMap alone and that the magnitude of a TimeMap is not equivalent to the number of representations it identifies. This work represents an abbreviated version of the full technical report describing this phenomena in depth [3]. For google.com we found that 84.9% of the URI-Ms in a TimeMap result in an HTTP redirect when dereferenced. The full study applies this technique to seven other URI-Rs of large Web sites and 13 academic institutions. Using a ratio metric for the number of URI-Ms without redirects to those requiring a redirect when dereferenced, five of the eight large web sites' and two of the thirteen academic institutions' TimeMaps had a ratio of less than one, indicating that more than half of the URI-Ms in these TimeMaps result in redirects when dereferenced.

Connected through hyperedge HE-1 (induced by source paper "a framework for aggregating private and public web archives"):
  with members:
    - "on the change in archivability of websites over time"
    - "profiling web archive coverage for top level domain and content language"
    - "an evaluation of caching policies for memento timemaps"

Connected through hyperedge HE-2 (induced by source paper "difficulties of timestamping archived web pages"):
  with members:
    - "rules of acquisition for mementos and their content"
    - "decentralized trusted timestamping using the crypto currency bitcoin"
    - "a framework for evaluation of composite memento temporal coherence"
    - "an evaluation of caching policies for memento timemaps"
    - "memento time travel for the web"
    - "transparent format migration of preserved web content"

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)