The 8th Pacific Rim Conference of Education will be held at Kaderu 2.7 (Hokkaido Citizens Activities Center Building) near Sapporo station.
There is a direct train route from the airport (CTS-Chitose, Sapporo, JAPAN) to Sapporo station.
Between New Chitotse Airport and Sapporo, JR rapid train called "Airport" is available. It takes approximately 40 minutes and runs every 15 minutes. Every train stops at Sapporo regardless of its destination. The JR train departs from the underground of the airport.
The detailed information is available here (external link).