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Yandex is a technology company that creates innovative products based on machine learning and neural networks. A team of talented mathematicians and programmers develops Russia's most popular search engine and more than 85 user services that help people in their everyday lives. Key business areas are: search and e-commerce, ad services, media services, online taxi and food ordering, unmanned cars, products for advertisers and business owners. Yandex is also actively developing Open Source projects, such as the CatBoost machine learning library.