Java
Quick start
To apply a previously trained CatBoost model in Java:
-
Install the package using a package manager.
Add the following block to the dependencies section of the pom.xml file for Maven:
<!-- https://mvnrepository.com/artifact/ai.catboost/catboost-prediction --> <dependency> <groupId>ai.catboost</groupId> <artifactId>catboost-prediction</artifactId> <version>source_version</version> </dependency>
source_version
should be set to one of the main CatBoost releases. Available versions can also be checked on the Maven repository site. -
Load the trained model:
import ai.catboost.CatBoostModel; import ai.catboost.CatBoostPredictions; CatBoostModel model = CatBoostModel.loadModel("model.cbm");
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Apply the model:
CatBoostPredictions prediction = model.predict(new float[]{0.1f, 0.3f, 0.2f}, new String[]{"foo", "bar", "baz"}); // assuming that this is a regression task System.out.print("model value is " + String.valueOf(prediction.get(0, 0));
Provided classes
Class | Description |
---|---|
CatBoostModel | Basic model application methods. |
CatBoostPredictions | A wrapper that provides methods for making convenient predictions for certain classes. |