Accessing Fukuoka is really easy! There are many direct flights to Japan from hundreds of cities in the world. Especially, there are many direct flights to Fukuoka from Asian countries. For others, connecting flights from Narita International Airport (Narita) and Tokyo International Airport (Haneda) provide convenient transportation opportunities to visit Fukuoka. Everyday there are about 50 flights from Haneda to Fukuoka. Bus and train services are also available between these two airports.
Fukuoka city center has almost everything in 3 km/1.86 miles radius, mostly gathered around Hakata Station! It takes about only 5 minutes by train from Fukuoka Airport Station to Hakata Station. Local access information to the venue is here
Venue page provides more detail information about accessing Fukuoka.
ISMAR 2015 will be held at Fukuoka International Congress Center in Fukuoka, Japan from 29 Sep to 3 Oct. Local information page shows many attractive Food, Nature, Tradition, etc.