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# branching factor

### the tl;dr

The branching factor is the number of possible moves that can be made from a given position in a game.

## What is the branching factor of a tree?

In AI, the branching factor of a tree is the number of children that each node has. A higher branching factor means that each node has more children, and thus the tree is more complex. A lower branching factor means that each node has fewer children, and thus the tree is simpler. The optimal branching factor depends on the specific problem that the AI is trying to solve.

## What is the maximum branching factor of a tree?

The maximum branching factor of a tree in AI is the number of children that a node can have. The maximum number of children a node can have is often referred to as the "degree" of the node. A tree with a maximum branching factor of 2 is called a "binary tree". A tree with a maximum branching factor of 3 is called a "ternary tree". And so on.

## What is the minimum branching factor of a tree?

The minimum branching factor of a tree in AI is the minimum number of children that a node in the tree must have. This is used to ensure that the tree is able to search through all possible paths in the search space.

## What is the average branching factor of a tree?

The average branching factor of a tree in AI is the average number of children that each node in the tree has. This number can vary depending on the type of tree and the algorithm being used, but is typically between 2 and 5.

## What is the expected branching factor of a tree?

The expected branching factor of a tree in AI is the number of nodes that are expected to be added to the tree at each level. This number can be estimated by looking at the average number of nodes added at each level over the course of several trials. The expected branching factor can be used to help determine the optimal search strategy for a given problem.