Common Sense

True Intelligent systems exhibit common sense -- they possess more than enough knowledge to be able to work in a given environment.

We have already mentioned the CYC system which is an ambitious attempt to code up common sense. However as this example illustrates you require a very large knowledge base for this type of system.

Common sense systems need to support:

• Descriptions of everyday objects -- Frames.
• Typical sequences of everyday events -- Scripts.
• Default reasoning -- Nonmonotonic logics.

Common sense strategies illustrate many important AI topics. We will study how this can be implemented drawing on many of the topics we have studied previously.

 
• The Physical World -- Qualitative Physics
  • Modelling the Qualitative World
  • Reasoning with qualitative information
• Common sense Ontologies
  • Time
  • Space
  • Materials
• Memory Organisation
• Memory in problem solving
• Further Reading
• Exercises