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: "adding escience assets to the data web"
  Abstract: Aggregations of Web resources are increasingly important in scholarship as it adopts new methods that are data-centric, collaborative, and networked-based. The same notion of aggregations of resources is common to the mashed-up, socially networked information environment of Web 2.0. We present a mechanism to identify and describe aggregations of Web resources that has resulted from the Open Archives Initiative - Object Reuse and Exchange (OAI-ORE) project. The OAI-ORE specications are based on the principles of the Architecture of the World Wide Web, the Semantic Web, and the Linked Data eort. Therefore, their incorporation into the cyberinfrastructure that supports eScholarship will ensure the integration of the products of scholarly research into the Data Web.

Connected through hyperedge HE-1 (induced by source paper "evaluating the sharedcanvas manuscript data model in catchplus"):
  with members:
    - "sharedcanvas a collaborative model for medieval manuscript layout dissemination"
    - "making web annotations persistent over time"

Connected through hyperedge HE-2 (induced by source paper "sharedcanvas a collaborative model for medieval manuscript layout dissemination"):
  with members:
    - "making web annotations persistent over time"

Connected through hyperedge HE-3 (induced by source paper "an http based versioning mechanism for linked data"):
  with members:
    - "memento time travel for the web"

Connected through hyperedge HE-4 (induced by source paper "making web annotations persistent over time"):
  with members:
    - "memento time travel for the web"

Connected through hyperedge HE-5 (induced by source paper "from artifacts to aggregations modeling scientific life cycles on the semantic web"):
  with members:
    - "pathways augmenting interoperability across scholarly repositories"

Connected through hyperedge HE-6 (induced by source paper "memento time travel for the web"):
  with members:
    - "an http based versioning mechanism for linked data"

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)