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 "evaluating sliding and sticky target policies by measuring temporal drift in acyclic walks through a web archive"):
  Abstract: When a user views an archived page using the archive's user interface (UI), the user selects a datetime to view from a list. The archived web page, if available, is then displayed. From this display, the web archive UI attempts to simulate the web browsing experience by smoothly transitioning between archived pages. During this process, the target datetime changes with each link followed; drifting away from the datetime originally selected. When browsing sparsely-archived pages, this nearly-silent drift can be many years in just a few clicks. We conducted 200,000 acyclic walks of archived pages, following up to 50 links per walk, comparing the results of two target datetime policies. The Sliding Target policy allows the target datetime to change as it does in archive UIs such as the Internet Archive's Wayback Machine. The Sticky Target policy, represented by the Memento API, keeps the target datetime the same throughout the walk. We found that the Sliding Target policy drift increases with the number of walk steps, number of domains visited, and choice (number of links available). However, the Sticky Target policy controls temporal drift, holding it to less than 30 days on average regardless of walk length or number of domains visited. The Sticky Target policy shows some increase as choice increases, but this may be caused by other factors. We conclude that based on walk length, the Sticky Target policy generally produces at least 30 days less drift than the Sliding Target policy.

Includes members:
  Member "access patterns for robots and humans in web archives":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "making recommendations from web archives for lost web pages")
  Member "profiling web archive coverage for top level domain and content language":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "mementomap framework for flexible and adaptive web archive profiling")
  Member "evaluating the sitestory transactional web archive with the apachebench tool":
    also connected through other hyperedges:
      (none)
  Member "how much of the web is archived":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "making recommendations from web archives for lost web pages")
  Member "an http based versioning mechanism for linked data":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "reliable granular references to changing linked data")
  Member "memento time travel for the web":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "archive assisted archival fixity verification framework")
  Member "characterization of search engine caches":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "arclink optimization techniques to build and retrieve the temporal web graph")

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)