On July 13th-17th 2015, the 10th International Computer Science Symposium in Russia took place. The largest conference on theoretical informatics in Russia was organized by Irkutsk State University, the Higher School of Economics and Yandex. Vladimir Podolskii, Associate Professor at the Big Data and Information Retrieval School took part in the event as guest speaker. Maxim Babenko, Head of the Joint Department with Yandex also delivered a report during the event.