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OneHotEncoder.proto
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OneHotEncoder.proto
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// Copyright (c) 2017, Apple Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-3-clause license that can be
// found in LICENSE.txt or at https://opensource.org/licenses/BSD-3-Clause
syntax = "proto3";
option optimize_for = LITE_RUNTIME;
import public "DataStructures.proto";
package CoreML.Specification;
/**
* Transforms a categorical feature into an array. The array will be all
* zeros expect a single entry of one.
*
* Each categorical value will map to an index, this mapping is given by
* either the ``stringCategories`` parameter or the ``int64Categories``
* parameter.
*/
message OneHotEncoder {
enum HandleUnknown {
ErrorOnUnknown = 0;
IgnoreUnknown = 1; // Output will be all zeros for unknown values.
}
/**
* Mapping to be used for the encoding. The position of the category in
* the below vector determines where the single one entry will be in the
* output.
*/
oneof CategoryType {
StringVector stringCategories = 1;
Int64Vector int64Categories = 2;
}
// Output can be a dictionary with only one entry, instead of an array.
bool outputSparse = 10;
HandleUnknown handleUnknown = 11;
}