Hayato Yamana Hanpei Koike Yuetsu Kodama Hirofumi Sakane Yoshinori Yamaguchi Fast Speculative Search Engine on the Highly Parallel Computer EM-X. 390 1998 conf/sigir/98 SIGIR SIGIR1998/P390.pdf db/conf/sigir/YamanaKKSY98.html db/conf/sigir/sigir98.html#YamanaKKSY98