Posted inBasics
Approaches to Knowledge Representation
Simple relational knowledge The simplest way of storing facts is to use a relational method…
Posted inBasics
Knowledge Representation
What to Represent? Let us first consider what kinds of knowledge might need to be…
Posted inBasics
Means-Ends Analysis
Allows both backward and forward searching.This means we could solve major parts of a problem…
Posted inBasics
And-Or Graphs
Useful for certain problems where The solution involves decomposing the problem into smaller problems.We then…
Posted inAdvanced
Heuristic Search
A heuristic is a method that might not always find the best solutionbut is guaranteed to find a…
Posted inBasics
Problems and Search
Problem solving involves: problem definition -- detailed specifications of inputs and what constitutes an acceptable…
Posted inBasics
Why use this data structure?
It enables attribute values to be retrieved quicklyassertions are indexed by the entitiesbinary predicates are…
Posted inAdvanced
Extending Semantic Nets
Here we will consider some extensions to Semantic nets that overcome a few problems (see…
Posted inAdvanced
Inference in a Semantic Net
Basic inference mechanism: follow links between nodes. Two methods to do this: Intersection search -- the…