IJCAI is the International Joint Conference on Artificial Intelligence, the main international gathering of researchers in AI. IJCAI conferences were held biennially in odd-numbered years since 1969. Starting from 2015, IJCAI will be held annually. IJCAI is sponsored jointly by IJCAI and the national AI societie(s) of the host nation(s). The 26th International Joint Conference on Artificial Intelligence will be held in Melbourne, Australia in August 2017.