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: "an http based versioning mechanism for linked data"
  Abstract: Dereferencing a URI returns a representation of the current state of the resource identified by that URI. But, on the Web representations of prior states of a resource are also available, for example, as resource versions in Content Management Systems or archival resources in Web Archives such as the Internet Archive. This paper introduces a resource versioning mechanism that is fully based on HTTP and uses datetime as a global version indicator. The approach allows "follow your nose" style navigation both from the current time-generic resource to associated time-specific version resources as well as among version resources. The proposed versioning mechanism is congruent with the Architecture of the World Wide Web, and is based on the Memento framework that extends HTTP with transparent content negotiation in the datetime dimension. The paper shows how the versioning approach applies to Linked Data, and by means of a demonstrator built for DBpedia, it also illustrates how it can be used to conduct a time-series analysis across versions of Linked Data descriptions.

Connected through hyperedge HE-1 (induced by source paper "reliable granular references to changing linked data"):
  with members:
    - "nanopub java a java library for nanopublications"
    - "making digital artifacts on the web verifiable and reliable"
    - "provenance centered dataset of drug drug interactions"
    - "trusty uris verifiable immutable and permanent digital artifacts for linked data"
    - "publishing without publishers a decentralized approach to dissemination retrieval and archiving of data"
    - "broadening the scope of nanopublications"

Connected through hyperedge HE-2 (induced by source paper "a query language for multi version data web archives"):
  with members:
    - "pav ontology provenance authoring and versioning"
    - "diachronic linked data towards long term preservation of structured interrelated information"
    - "memento time travel for the web"
    - "semantics and complexity of sparql"

Connected through hyperedge HE-3 (induced by source paper "a framework for managing evolving information resources on the data web"):
  with members:
    - "diachronic linked data towards long term preservation of structured interrelated information"
    - "memento time travel for the web"

Connected through hyperedge HE-4 (induced by source paper "bringing web time travel to mediawiki an assessment of the memento mediawiki extension"):
  with members:
    - "a framework for evaluation of composite memento temporal coherence"
    - "who and what links to the internet archive"
    - "access patterns for robots and humans in web archives"
    - "evaluating sliding and sticky target policies by measuring temporal drift in acyclic walks through a web archive"

Connected through hyperedge HE-5 (induced by source paper "a framework for evaluation of composite memento temporal coherence"):
  with members:
    - "memento time travel for the web"

Connected through hyperedge HE-6 (induced by source paper "evaluating sliding and sticky target policies by measuring temporal drift in acyclic walks through a web archive"):
  with members:
    - "access patterns for robots and humans in web archives"
    - "profiling web archive coverage for top level domain and content language"
    - "evaluating the sitestory transactional web archive with the apachebench tool"
    - "how much of the web is archived"
    - "memento time travel for the web"
    - "characterization of search engine caches"

Connected through hyperedge HE-7 (induced by source paper "profiling web archive coverage for top level domain and content language"):
  with members:
    - "who and what links to the internet archive"
    - "access patterns for robots and humans in web archives"
    - "an evaluation of caching policies for memento timemaps"
    - "how much of the web is archived"
    - "memento time travel for the web"
    - "the structure of broad topics on the web"

Connected through hyperedge HE-8 (induced by source paper "an evaluation of caching policies for memento timemaps"):
  with members:
    - "how much of the web is archived"
    - "memento time travel for the web"

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)