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: "The Catalyzing Factors of Official Documents Exchange via Microblogging in Public Sectors: A Case Study based on the T-O-E Framework"
  Abstract: Since Government transparency and information open has got more attention by both academia and practitioners with the development of information technologies (IT) and Internet, The popularity of Web 2.0 application provides the government some new opportunities and challenges. Official documents exchange via microblogging (ODEM) in the Bureau of Justice, Haining is a practice case of government information open in the new media. For analyzing the determinants from academic perspective and exploring the managerial value of the case, the paper report an exploratory case study based on the technology-organization-environment (TOE) framework. After several field interviews and rigorous data coding by following the case study methodology, we find that top manager’s support, personnel’s IT accomplishment, and regional economic and social environment are the key determinants of the emergence of ODEM, as well as the organizational structure and operational flow is not change immediately in this case. The limitation and future goals of the study are also discussed in the paper.

Connected through hyperedge HE-1 (induced by source paper "Twitter power: Tweets as electronic word of mouth"):
  with members:
    - "Predicting Elections with Twitter: What 140 Characters Reveal about Political Sentiment"
    - "Microblog language identification: overcoming the limitations of short, unedited and idiomatic text"
    - "Truthy: mapping the spread of astroturf in microblog streams"
    - "Opinion observer: analyzing and comparing opinions on the Web"
    - "Entity-based Classification of Twitter Messages"
    - "Social Media Campaigns For New Product Introductions"
    - "Analyzing Second Screen Based Social Soundtrack of TV Viewers from Diverse Cultural Settings"

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