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update grid search doc (#1486)
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* same meaning of 'q' with other tuners
* not longer support qloguniform, support randint
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@suiguoxin
suiguoxin authored Aug 23, 2019
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Expand Up @@ -3,4 +3,6 @@ Grid Search on NNI

## Grid Search

Grid Search performs an exhaustive searching through a manually specified subset of the hyperparameter space defined in the searchspace file. Note that the only acceptable types of search space are `choice`, `quniform`, `qloguniform`. **The number `q` in `quniform` and `qloguniform` has special meaning (different from the spec in [search space spec](../Tutorial/SearchSpaceSpec.md)). It means the number of values that will be sampled evenly from the range `low` and `high`.**
Grid Search performs an exhaustive searching through a manually specified subset of the hyperparameter space defined in the searchspace file.

Note that the only acceptable types of search space are `choice`, `quniform`, `randint`.

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