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: "complete semantics to empower touristic service providers"
  Abstract: The tourism industry has a significant impact on the world's economy, contributes 10.2% of the world's gross domestic product in 2016. It becomes a very competitive industry, where having a strong online presence is an essential aspect for business success. To achieve this goal, the proper usage of latest Web technologies, particularly this http URL annotations is crucial. In this paper, we present our effort to improve the online visibility of touristic service providers in the region of Tyrol, Austria, by creating and deploying a substantial amount of semantic annotations according to this http URL, a widely used vocabulary for structured data on the Web. We started our work from Tourismusverband (TVB) Mayrhofen-Hippach and all touristic service providers in the Mayrhofen-Hippach region and applied the same approach to other TVBs and regions, as well as other use cases. The rationale for doing this is straightforward. Having this http URL annotations enables search engines to understand the content better, and provide better results for end users, as well as enables various intelligent applications to utilize them. As a direct consequence, the region of Tyrol and its touristic service increase their online visibility and decrease the dependency on intermediaries, i.e. Online Travel Agency (OTA).

Connected through hyperedge HE-1 (induced by source paper "verification and validation of semantic annotations"):
  with members:
    - "heuristics for publishing dynamic content as structured data with schema org"
    - "a brief survey of text mining classification clustering and extraction techniques"
    - "validating rdf with shape expressions"

Connected through hyperedge HE-2 (induced by source paper "a formal approach for customization of schema org based on shacl"):
  with members:
    - "domain specific semantic validation of schema org annotations"

Connected through hyperedge HE-3 (induced by source paper "building an ecosystem for the tyrolean tourism knowledge graph"):
  with members:
    - "heuristics for publishing dynamic content as structured data with schema org"
    - "machine readable web apis with schema org action annotations"
    - "domain specific semantic validation of schema org annotations"
    - "defining tourism domains for semantic annotation of web content"
    - "annotation based automatic action processing"
    - "semantify it a platform for creation publication and distribution of semantic annotations"

Connected through hyperedge HE-4 (induced by source paper "machine readable web apis with schema org action annotations"):
  with members:
    - "heuristics for publishing dynamic content as structured data with schema org"
    - "domain specific semantic validation of schema org annotations"
    - "semantify it a platform for creation publication and distribution of semantic annotations"

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.IR(Information Retrieval)