Knowledge Representation

• We've had several lectures on Knowledge Representation.
• Logic (lecture 7)
• Semantic Nets(lecture 9), which included Frames
• XML and Ontologies (lecture 21)
• Rule Based Systems (lecture 22)
• These are all ways of representing knowledge.
• For a system to function effectively, it needs to represent the data.
• For an AI system to function effectively, particularly an advanced one, it needs to have knowledge, and represent it appropriately.
• The system may change its knowledge, have new knowledge added, or learn new things.