mrk-andreev commented on a change in pull request #8489: URL: https://github.com/apache/ignite/pull/8489#discussion_r535935442
########## File path: modules/ml/catboost-model-parser/src/main/java/org/apache/ignite/ml/catboost/CatboostClassificationModelParser.java ########## @@ -0,0 +1,44 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.ignite.ml.catboost; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.io.InputStream; +import ai.catboost.CatBoostError; +import ai.catboost.CatBoostModel; +import org.apache.ignite.ml.inference.parser.ModelParser; +import org.apache.ignite.ml.math.primitives.vector.NamedVector; + +/** + * Catboost Classification model parser. + */ +public class CatboostClassificationModelParser implements + ModelParser<NamedVector, Double, CatboostClassificationModel> { Review comment: Catboost require right order of features. So I can fetch order `model.getFeatureNames()` and fill input vector `floatInput` using expected order. ```java float[] floatInput = new float[input.size()]; int index = 0; for (String key: model.getFeatureNames()) { floatInput[index] = (float) input.get(key); index++; } return model.predict(floatInput, model.getFeatureNames()).get(0, 0); ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
