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: "Better security and privacy for web browsers: a survey of techniques, and a new implementation"
  Abstract: The web browser is one of the most security critical software components today. It is used to interact with a variety of important applications and services, including social networking services, e-mail services, and e-commerce and e-health applications. But the same browser is also used to visit less trustworthy sites, and it is unreasonable to make it the end-user's responsibility to "browse safely". So it is an important design goal for a browser to provide adequate privacy and security guarantees, and to make sure that potentially malicious content from one web site can not compromise the browser, violate the user's privacy, or interfere with other web sites that the user interacts with.

Hence, browser security has been a very active topic of research over the past decade, and many proposals have been made for new browser security techniques or architectures. In the first part of this paper, we provide a survey of some important problems and some proposed solutions. We start with a very broad view on browser security problems, and then zoom in on the issues related to the security of JavaScript scripts on the Web. We discuss three important classes of techniques: fine-grained script access control, capability-secure scripting and information flow security for scripts, focusing on techniques with a solid formal foundation.

In the second part of the paper, we describe a novel implementation of one information flow security technique. We discuss how we have implemented the technique of secure multi-execution in the Mozilla Firefox browser, and we report on some preliminary experiments with this implementation.

Connected through hyperedge HE-1 (induced by source paper "Language-based information-flow security"):
  with members:
    - "Semantics and Program Analysis of Computationally Secure Information Flow"
    - "Abstract non-interference: parameterizing non-interference by abstract interpretation"
    - "Evaluation of anonymity and confidentiality protocols using theorem proving"
    - "Securing web application code by static analysis and runtime protection"
    - "An Information Flow Monitor-Inlining Compiler for Securing a Core of JavaScript"
    - "Taint analysis of security code in the KLEE symbolic execution engine"

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