Yukio Sadahiro

According to our database, Yukio Sadahiro authored at least 29 papers between 1997 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2024

Horizontal and vertical inequity of multi-modal healthcare accessibility in the aging Japan in the post-COVID era: a GIS-based approach.

Siqin Wang, Yukio Sadahiro

Int. J. Digit. Earth, December, 2024

Market area analysis with a focus on the spatial relationship between sites and their visitors.

Yukio Sadahiro, Hidetaka Matsumoto

Trans. GIS, August, 2024

Analysis of a spatial point pattern in relation to a reference point.

Yukio Sadahiro, Hidetaka Matsumoto

J. Geogr. Syst., July, 2024

2023

Event pattern analysis: Spatial clustering of sequential events and temporal change of events over time.

Yukio Sadahiro

Trans. GIS, February, 2023

2022

A fine-grained evaluation of social vulnerability to COVID-19, healthcare access and built environmental disparities in Tokyo, Japan.

Siqin Wang, Yukio Sadahiro

Int. J. Digit. Earth, December, 2022

A method for evaluating the degree of spatial and temporal avoidance in spatial point patterns.

Yukio Sadahiro

J. Geogr. Syst., 2022

2021

A method for analyzing the expansion and shrinkage of point pattern.

Yukio Sadahiro

Trans. GIS, 2021

2019

Statistical analysis of spatial segregation of points.

Yukio Sadahiro

Comput. Environ. Urban Syst., 2019

Analysis of the appearance and disappearance of point objects over time.

Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 2019

2018

Robust statistical approaches for circle fitting in laser scanning three-dimensional point cloud data.

Abdul Nurunnabi, Yukio Sadahiro, Debra F. Laefer

Pattern Recognit., 2018

Descriptive Measures of Point Distributions Summarized with Respect to Spatial Scale in Visualization.

Yukio Sadahiro

Cartogr. Int. J. Geogr. Inf. Geovisualization, 2018

2015

A method for analyzing the segregation between point distributions: statistical tests and consideration of attributes.

Yukio Sadahiro

J. Geogr. Syst., 2015

2014

Exploratory analysis of time series data: Detection of partial similarities, clustering, and visualization.

Yukio Sadahiro, Tetsuo Kobayashi

Comput. Environ. Urban Syst., 2014

Measuring geographic segregation: a graph-based approach.

Seong-Yun Hong, Yukio Sadahiro

J. Geogr. Syst., 2014

2013

A method for comparing numerical variables defined in a region.

Yukio Sadahiro

Comput. Environ. Urban Syst., 2013

Trajectories of Moving Objects on a Network: Detection of Similarities, Visualization of Relations, and Classification of Trajectories.

Yukio Sadahiro, Raymond Lay, Tetsuo Kobayashi

Trans. GIS, 2013

2011

Analysis of the relations among spatial tessellations.

Yukio Sadahiro

J. Geogr. Syst., 2011

2010

Analysis of the spatial relations among point distributions on a discrete space.

Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 2010

2006

Accuracy of quantized Voronoi diagrams.

Yukio Sadahiro, Takashi Tominaga

Int. J. Geogr. Inf. Sci., 2006

2005

Buffer Operation on Spatial Data with Limited Accuracy.

Yukio Sadahiro

Trans. GIS, 2005

2003

Cluster detection in uncertain point distributions: a comparison of four methods.

Yukio Sadahiro

Comput. Environ. Urban Syst., 2003

Stability of the surface generated from distributed points of uncertain location.

Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 2003

2001

Number of Polygons Generated by Map Overlay: The Case of Convex Polygons.

Yukio Sadahiro

Trans. GIS, 2001

A computational approach for the analysis of changes in polygon distributions.

Yukio Sadahiro, Mitsuru Umemura

J. Geogr. Syst., 2001

Analysis of surface changes using primitive events.

Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 2001

2000

Accuracy of count data transferred through the areal weighting interpolation method.

Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 2000

1999

Accuracy of areal interpolation: A comparison of alternative methods.

Yukio Sadahiro

J. Geogr. Syst., 1999

Statistical methods for analyzing the distribution of spatial objects in relation to a surface.

Yukio Sadahiro

J. Geogr. Syst., 1999

1997

Variation in Count Data Transferred from a Set of Irregular Zones to a Set of Regular Zones Through the Point-in-Polygon Method.

Atsuyuki Okabe, Yukio Sadahiro

Int. J. Geogr. Inf. Sci., 1997