Artificial intelligence
Which kind of planning consists of successive representations of different levels of a plan?

all of the mentioned
hierarchical planning
non-hierarchical planning
project planning

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Artificial intelligence
A heuristic is a way of trying __________

To search and measure how far a node in a search tree seems to be from a goal
To discover something or an idea embedded in a program
To compare two nodes in a search tree to see if one is better than the other is
All of the mentioned

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