For more than a half-century, IJCAI has remained the premier conference bringing together the international AI community to communicate the advances and achievements of artificial intelligence research. PRICAI was initiated in 1990 to create an artificial intelligence conference that would promote collaborative AI research in the Pacific Rim nations. This is the first time that IJCAI and PRICAI have been held jointly. With the current exploding interest in AI and its applications, the joint IJCAI-PRICAI conference will provide an exciting forum to present and hear about cutting-edge research in AI.