The 17th annual conference ITAT took place in Hotel Martinské hole, Slovakia, at an altitude of 1223 m, from 22 to 26 September 2017. ITAT, meaning Information Technologies - Applications and Theory, is a place where young researchers, doctoral students and their teachers meet every year to present their results from the various fields of computer science. They come mainly from the Czech and Slovak republic, but the conference is open to participants from other countries as well. In addition to the professional program, much time is devoted to informal discussions, and above all to the formation and maintenance of friendly relations between scientists from the both countries. The Slovak mountains make a perfect background for that. The 2017 conference consisted of the main track and 3 workshops:
iii Steering Committee of ITAT 2017 Peter Vojtáš, Charles University in Prague (chair) Tomáš Horváth, Pavol Jozef Šafárik University in Košice Filip Zavoral, Charles University in Prague Martin Holenˇ a, Academy of Sciences of the Czech Republic Tomáš Vinarˇ, Comenius University in Bratislava Program Committee of ITAT 2017 Organizing Committee Peter Gurský, Pavol Jozef Šafárik University in Košice (chair) ´Lubomír Antoni, Pavol Jozef Šafárik University in Košice Alexander Szabari, Pavol Jozef Šafárik University in Košice Ondrej Šuch, University of Žilina