1// Copyright 2020 Google LLC 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15syntax = "proto3"; 16 17package google.cloud.recommendationengine.v1beta1; 18 19 20option csharp_namespace = "Google.Cloud.RecommendationEngine.V1Beta1"; 21option go_package = "cloud.google.com/go/recommendationengine/apiv1beta1/recommendationenginepb;recommendationenginepb"; 22option java_multiple_files = true; 23option java_package = "com.google.cloud.recommendationengine.v1beta1"; 24option objc_class_prefix = "RECAI"; 25option php_namespace = "Google\\Cloud\\RecommendationEngine\\V1beta1"; 26option ruby_package = "Google::Cloud::RecommendationEngine::V1beta1"; 27 28// FeatureMap represents extra features that customers want to include in the 29// recommendation model for catalogs/user events as categorical/numerical 30// features. 31message FeatureMap { 32 // A list of string features. 33 message StringList { 34 // String feature value with a length limit of 128 bytes. 35 repeated string value = 1; 36 } 37 38 // A list of float features. 39 message FloatList { 40 // Float feature value. 41 repeated float value = 1; 42 } 43 44 // Categorical features that can take on one of a limited number of possible 45 // values. Some examples would be the brand/maker of a product, or country of 46 // a customer. 47 // 48 // Feature names and values must be UTF-8 encoded strings. 49 // 50 // For example: `{ "colors": {"value": ["yellow", "green"]}, 51 // "sizes": {"value":["S", "M"]}` 52 map<string, StringList> categorical_features = 1; 53 54 // Numerical features. Some examples would be the height/weight of a product, 55 // or age of a customer. 56 // 57 // Feature names must be UTF-8 encoded strings. 58 // 59 // For example: `{ "lengths_cm": {"value":[2.3, 15.4]}, 60 // "heights_cm": {"value":[8.1, 6.4]} }` 61 map<string, FloatList> numerical_features = 2; 62} 63