human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Building a discourse-tagged corpus in the framework of Rhetorical Structure Theory"
  Abstract: We describe our experience in developing a discourse-annotated corpus for community-wide use. Working in the framework of Rhetorical Structure Theory, we were able to create a large annotated resource with very high consistency, using a well-defined methodology and protocol. This resource is made publicly available through the Linguistic Data Consortium to enable researchers to develop empirically grounded, discourse-specific applications.

Connected through hyperedge HE-1 (induced by source paper "Building an Annotated Corpus for Text Summarization and Question Answering."):
  with members:
    - "Construction of Text Summarization Corpus for the Credibility of Information on the Web."

Connected through hyperedge HE-2 (induced by source paper "Discourse segmentation by human and automated means"):
  with members:
    - "TENSE TREES AS THE "FINE STRUCTURE" OF DISCOURSE"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science