Kei‐ichi Okunuki

577 total citations
15 papers, 382 citations indexed

About

Kei‐ichi Okunuki is a scholar working on Transportation, Building and Construction and Geography, Planning and Development. According to data from OpenAlex, Kei‐ichi Okunuki has authored 15 papers receiving a total of 382 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Transportation, 4 papers in Building and Construction and 4 papers in Geography, Planning and Development. Recurrent topics in Kei‐ichi Okunuki's work include Geographic Information Systems Studies (3 papers), Facility Location and Emergency Management (3 papers) and Data Management and Algorithms (3 papers). Kei‐ichi Okunuki is often cited by papers focused on Geographic Information Systems Studies (3 papers), Facility Location and Emergency Management (3 papers) and Data Management and Algorithms (3 papers). Kei‐ichi Okunuki collaborates with scholars based in Japan and United Kingdom. Kei‐ichi Okunuki's co-authors include Atsuyuki Okabe, Shino Shiode, Masatoshi Morita, Narushige Shiode, Tsutomu Suzuki, Katsuya Suzuki, Hiroyuki Usui, Toshiaki Satoh, Toshiki Sato and Kohei Okamoto and has published in prestigious journals such as Annals of Operations Research, Geographical Analysis and Urban Geography.

In The Last Decade

Kei‐ichi Okunuki

13 papers receiving 355 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Kei‐ichi Okunuki Japan	8	188	86	85	80	60	15	382
Shino Shiode United Kingdom	13	246 1.3×	120 1.4×	73 0.9×	117 1.5×	88 1.5×	32	627
Mengjun Kang China	10	299 1.6×	83 1.0×	145 1.7×	89 1.1×	20 0.3×	25	526
Han Yue China	15	152 0.8×	61 0.7×	60 0.7×	121 1.5×	46 0.8×	31	543
Benoı̂t Flahaut Belgium	5	243 1.3×	74 0.9×	76 0.9×	34 0.4×	262 4.4×	8	418
José Balsa‐Barreiro Spain	15	123 0.7×	73 0.8×	105 1.2×	112 1.4×	23 0.4×	30	580
Katarzyna Siła-Nowicka United Kingdom	13	297 1.6×	24 0.3×	66 0.8×	118 1.5×	25 0.4×	33	546
Zhewei Liu Hong Kong	16	226 1.2×	39 0.5×	55 0.6×	152 1.9×	21 0.3×	42	649
David Rohde Australia	11	388 2.1×	28 0.3×	105 1.2×	76 0.9×	67 1.1×	24	668
Barry J. Kronenfeld United States	11	56 0.3×	89 1.0×	22 0.3×	117 1.5×	15 0.3×	34	386
Zhanjun He China	12	153 0.8×	35 0.4×	60 0.7×	125 1.6×	10 0.2×	28	477

Countries citing papers authored by Kei‐ichi Okunuki

Since Specialization

Citations

This map shows the geographic impact of Kei‐ichi Okunuki's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kei‐ichi Okunuki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kei‐ichi Okunuki more than expected).

Fields of papers citing papers by Kei‐ichi Okunuki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kei‐ichi Okunuki. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kei‐ichi Okunuki. The network helps show where Kei‐ichi Okunuki may publish in the future.

Co-authorship network of co-authors of Kei‐ichi Okunuki

This figure shows the co-authorship network connecting the top 25 collaborators of Kei‐ichi Okunuki. A scholar is included among the top collaborators of Kei‐ichi Okunuki based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kei‐ichi Okunuki. Kei‐ichi Okunuki is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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15 of 15 papers shown

Usui, Hiroyuki, et al.. (2020). A comparison of neighbourhood relations based on ordinary Delaunay diagrams and area Delaunay diagrams: an application to define the neighbourhood relations of buildings. International Journal of Geographical Information Systems. 34(11). 2177–2203. 7 indexed citations

Morita, Masatoshi, Katsuya Suzuki, & Kei‐ichi Okunuki. (2014). An Empirical Study of the Ratio of the Road Distance to the Straight Line Distance in Major Cities in Japan. Theory and Applications of GIS. 22(1). 1–7. 6 indexed citations

Shiode, Narushige, Masatoshi Morita, Shino Shiode, & Kei‐ichi Okunuki. (2014). Urban and rural geographies of aging: a local spatial correlation analysis of aging population measures. Urban Geography. 35(4). 608–628. 44 indexed citations

Okunuki, Kei‐ichi, et al.. (2012). Spatial Distribution Patterns of the Elderly Ratio and Their Association with the Density of the Elderly Population. Geographical review of Japan series A. 85(6). 608–617. 1 indexed citations

Okunuki, Kei‐ichi. (2008). Spatial Analysis in GIS Environments. Journal of Geography (Chigaku Zasshi). 117(2). 324–340. 2 indexed citations

Okabe, Atsuyuki, Kei‐ichi Okunuki, & Shino Shiode. (2006). The SANET Toolbox: New Methods for Network Spatial Analysis. Transactions in GIS. 10(4). 535–550. 75 indexed citations

Okabe, Atsuyuki, Kei‐ichi Okunuki, & Shino Shiode. (2005). SANET: A Toolbox for Spatial Analysis on a Network. Geographical Analysis. 38(1). 57–66. 145 indexed citations

Okunuki, Kei‐ichi, et al.. (2003). A Method for Analyzing Sketch Maps Using GIS. 41(4). 27–36.

Okunuki, Kei‐ichi & Atsuyuki Okabe. (2002). Solving the Huff-Based Competitive Location Model on a Network with Link-Based Demand. Annals of Operations Research. 111(1-4). 239–252. 27 indexed citations

10.

Sato, Toshiki, et al.. (2002). . Theory and Applications of GIS. 10(2). 69–77. 2 indexed citations

11.

Okunuki, Kei‐ichi, Koji Ohnishi, Atsushi Suzuki, et al.. (2002). GIS Education in the Geography Course at University Level. Chirigaku hyouron. 75(12). 772–774.

12.

Okabe, Atsuyuki & Kei‐ichi Okunuki. (2001). A Computational Method for Estimating the Demand of Retail Stores on a Street Network and its Implementation in GIS. Transactions in GIS. 5(3). 209–220. 51 indexed citations

13.

Okunuki, Kei‐ichi. (2000). Urban analysis with GIS. GeoJournal. 52(3). 181–188. 9 indexed citations

14.

Okabe, Atsuyuki, Kei‐ichi Okunuki, & Tsutomu Suzuki. (1997). A computational method for optimizing the hierarchy and spatial configuration of successively inclusive facilities on a continuous plane. 5(4). 255–268. 12 indexed citations

15.

Okunuki, Kei‐ichi & Atsuyuki Okabe. (1995). Optimization of Successively Inclusive Hierarchical Facilities on a Plane. Journal of the City Planning Institute of Japan. 30(0). 565–570. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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