Risk Agoras: Dialectical Argumentation for Scientific Reasoning
  We propose a formal framework for intelligent systems which can reason about
scientific domains, in particular about the carcinogenicity of chemicals, and
we study its properties. Our framework is grounded in a philosophy of
scientific enquiry and discourse, and uses a model of dialectical
argumentation. The formalism enables representation of scientific uncertainty
and conflict in a manner suitable for qualitative reasoning about the domain.
