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: "designing the w3c open annotation data model"
  Abstract: The Open Annotation Core Data Model specifies an interoperable framework for creating associations between related resources, called annotations, using a methodology that conforms to the Architecture of the World Wide Web. Open Annotations can easily be shared between platforms, with sufficient richness of expression to satisfy complex requirements while remaining simple enough to also allow for the most common use cases, such as attaching a piece of text to a single web resource. This paper presents the W3C Open Annotation Community Group specification and the rationale behind the scoping and technical decisions that were made. It also motivates interoperable Annotations via use cases, and provides a brief analysis of the advantages over previous specifications.

Connected through hyperedge HE-1 (induced by source paper "building and querying semantic layers for web archives extended version"):
  with members:
    - "towards a ranking model for semantic layers over digital archives"
    - "extracting event centric document collections from large scale web archives"
    - "tempas temporal archive search based on tags"
    - "can we find documents in web archives without knowing their contents"
    - "how to search the internet archive without indexing it"
    - "expedition a time aware exploratory search system designed for scholars"
    - "history by diversity helping historians search news archives"
    - "archivespark efficient web archive access extraction and derivation"

Connected through hyperedge HE-2 (induced by source paper "quantifying orphaned annotations in hypothes is"):
  with members:
    - "resurrecting my revolution using social link neighborhood in bringing context to the disappearing web"
    - "losing my revolution how many resources shared on social media have been lost"
    - "open annotations on multimedia web resources"
    - "how much of the web is archived"
    - "the open annotation collaboration oac model"
    - "sharedcanvas a collaborative model for medieval manuscript layout dissemination"
    - "making web annotations persistent over time"
    - "memento time travel for the web"

Connected through hyperedge HE-3 (induced by source paper "mining images in biomedical publications detection and analysis of gel diagrams"):
  with members:
    - "image mining from gel diagrams in biomedical publications"

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)