Waseda University is located in the center of Tokyo. A subway station (the name of the satation is Waseda) is within walking distance.
The venue of PAAL 2014 is the 8th floor of Building No. 11, Waseda Campus of Waseda University. The access information for Waseda University is here. On the map below, the conference site is indicated by the red circle. The venue for the conference dinner, Rihga Royal Hotel, is indicated by the blue square. The access information for Rihga Royal Hotel is here.