An exploratory method for qualitative trend curve analysis - a robust method against low quality data. - Atsuyuki Okabe; Atsushi Masuyama (Int. J. Geogr. Inf. Sci., 2001)

Methods for detecting apparent differences between spatial tessellations at different time points. - Atsushi Masuyama (Int. J. Geogr. Inf. Sci., 2006)

Total locational surplus for facility users distributed continuously along a network. - Atsushi Masuyama (Int. J. Geogr. Inf. Sci., 2014)

Logsum-type space-time accessibility measures (STAMs) that can be calibrated under a definite time budget. - Atsushi Masuyama (Int. J. Geogr. Inf. Sci., 2020)