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CatBoost is an open-source software library developed by Yandex. It provides a gradient boosting framework which, among other features, attempts to solve for categorical features using a permutation-driven alternative to the classical algorithm. It works on Linux, Windows, macOS, and is available in Python, R, and models built using CatBoost can be used for predictions in C++, Java, C#, Rust, Core ML, ONNX, and PMML. The source code is licensed under Apache License and available on GitHub.

Yandex.Navigator (Яндекс.Навигатор) is an automotive navigation system for mobile devices running Android, iOS and mobile operating systems of the Windows family. Developed by the international company Yandex and presented in March 2012. Yandex.Navigator is built on a technological basis Yandex Maps, supports the display of a schematic and satellite maps. According to Yandex, by August 2018, Navigator was used by 16 million users in Russia and more than four million in the CIS countries and Turkey.

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