Susumu Hasegawa

ε-approximations of k-label spaces: Extended abstract

H. Imai, Susumu Hasegawa, Masaki Ishiguro, 1993 .

epsilon-Approximations of k-Label Spaces

Hiroshi Imai, Susumu Hasegawa, Masaki Ishiguro, 1993, Theor. Comput. Sci..

Efficient Algorithms for Variance-Based k-Clustering

Hiroshi Imai, Mary Inaba, Susumu Hasegawa, 1993 .