GPS: subgoaling
Table of Contents
with the example on the right, with the distance between MIT and home \(d_1\), you decide that airplane is the best transportation method; but you can’t get on an plane from the classroom, so you had to solve the problem of going from MIT to airport, the difference/distance to which in here is denoted with \(d_2\)
To go to airport, based on the distance \(d_2\), you decide that Metro is the best transportation method, but again there’s none in the class room ,so you have to find a way to get to the Metro station. The distance from classroom to Metro station is denoted \(d_3\)
Based on the distance \(d_3\), which is probably 500 meters, walking seems about just enough, so you choose to walk from classroom to metro station, and you can start walking from classroom. Problem Solved!
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Assume a current state \(C\) and goal state \(S\), define a difference/distance between the 2 states \(d\). With previously known operator \(o\), a transition can be made from \(C\) to an intermediate state \(I\).