General chairs
Pavel Serdyukov (Yandex, Russia)
Pavel Braslavski (Kontur Labs, ex-Yandex, Russia)
Sergei O. Kuznetsov (Higher School of Economics, Russia)
Other chairs
Program Committee Chairs: Jaap Kamps (University of Amsterdam, the Netherlands), Stefan Rueger (The Open University, UK)
Posters Chair: Eugene Agichtein (Emory University, USA)
Workshop Chair: Evgeniy Gabrilovich (Google, USA)
Tutorial Chair: Djoerd Hiemstra (University of Twente, the Netherlands)
Demo Chair: Emine Yilmaz (Microsoft Research Cambridge, UK)
Industry day chair: Ilya Segalovich (Yandex, Russia)
Mentoring Chair: Mikhail Ageev (Moscow State University, Russia)
Proceedings Chair: Dmitry Ignatov (Higher School of Economics, Russia)
Best Paper Awards Chair: Arjen de Vries, CWI, the Netherlands
Local Organisers: Natalia Fedorischeva (Yandex, Russia), Tatiana Temnitskaya (Yandex, Russia), Yelena Jetpyspayeva (Yandex, Russia)
Best Paper Awards Committee
Arjen de Vries, CWI
Gabriella Pasi, University of Milano Bicocca
Leif Azzopardi, University of Glasgow
Fabrizio Silvestri, ISTI – CNR (Pisa)
Birger Larsen, Royal School of Library and Information Science