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6e38ff7 Jul 25, 2016
@vrv @tensorflower-gardener @keveman
106 lines (98 sloc) 2.35 KB
// Protocol messages for describing features for machine learning model
// training or inference.
//
// There are three base Feature types:
// - bytes
// - float
// - int64
//
// A Feature contains Lists which may hold zero or more values. These
// lists are the base values BytesList, FloatList, Int64List.
//
// Features are organized into categories by name. The Features message
// contains the mapping from name to Feature.
//
// Example Features for a movie recommendation application:
// feature {
// key: "age"
// value { float_list {
// value: 29.0
// }}
// }
// feature {
// key: "movie"
// value { bytes_list {
// value: "The Shawshank Redemption"
// value: "Fight Club"
// }}
// }
// feature {
// key: "movie_ratings"
// value { float_list {
// value: 9.0
// value: 9.7
// }}
// }
// feature {
// key: "suggestion"
// value { bytes_list {
// value: "Inception"
// }}
// }
// feature {
// key: "suggestion_purchased"
// value { int64_list {
// value: 1
// }}
// }
// feature {
// key: "purchase_price"
// value { float_list {
// value: 9.99
// }}
// }
//
syntax = "proto3";
option cc_enable_arenas = true;
option java_outer_classname = "FeatureProtos";
option java_multiple_files = true;
option java_package = "org.tensorflow.example";
package tensorflow;
// Containers to hold repeated fundamental values.
message BytesList {
repeated bytes value = 1;
}
message FloatList {
repeated float value = 1 [packed = true];
}
message Int64List {
repeated int64 value = 1 [packed = true];
}
// Containers for non-sequential data.
message Feature {
// Each feature can be exactly one kind.
oneof kind {
BytesList bytes_list = 1;
FloatList float_list = 2;
Int64List int64_list = 3;
}
};
message Features {
// Map from feature name to feature.
map<string, Feature> feature = 1;
};
// Containers for sequential data.
//
// A FeatureList contains lists of Features. These may hold zero or more
// Feature values.
//
// FeatureLists are organized into categories by name. The FeatureLists message
// contains the mapping from name to FeatureList.
//
message FeatureList {
repeated Feature feature = 1;
};
message FeatureLists {
// Map from feature name to feature list.
map<string, FeatureList> feature_list = 1;
};