Iwao Okutani

1.2k total citations · 1 hit paper
16 papers, 924 citations indexed

About

Iwao Okutani is a scholar working on Control and Systems Engineering, Transportation and Media Technology. According to data from OpenAlex, Iwao Okutani has authored 16 papers receiving a total of 924 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Control and Systems Engineering, 4 papers in Transportation and 3 papers in Media Technology. Recurrent topics in Iwao Okutani's work include Traffic control and management (4 papers), Transportation Planning and Optimization (4 papers) and Remote-Sensing Image Classification (3 papers). Iwao Okutani is often cited by papers focused on Traffic control and management (4 papers), Transportation Planning and Optimization (4 papers) and Remote-Sensing Image Classification (3 papers). Iwao Okutani collaborates with scholars based in Japan, United States and Greece. Iwao Okutani's co-authors include Yorgos J. Stephanedes, Panos G. Michalopoulos, D.E. Beskos, Dimitrios E. Beskos, Jin Xu, Hiroshi Wada, Noriyuki Inoue, Lianqing Zhou and Hiroshi Wada and has published in prestigious journals such as Transportation Research Part B Methodological, IEEJ Transactions on Electronics Information and Systems and Doboku Gakkai Ronbunshu.

In The Last Decade

Iwao Okutani

10 papers receiving 863 citations

Hit Papers

Dynamic prediction of tra... 1984 2026 1998 2012 1984 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Dynamic prediction of traffic volume through Kalman filtering theory
    1984 851 citations Iwao Okutani, Yorgos J. Stephanedes Transportation Research Part B Methodological profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Iwao Okutani Japan 6 866 723 542 114 45 16 924
Rudy Oswald United States 5 817 0.9× 671 0.9× 422 0.8× 136 1.2× 70 1.6× 6 902
A R Cook United States 7 698 0.8× 517 0.7× 388 0.7× 87 0.8× 37 0.8× 18 774
Mohammed S. Ahmed Saudi Arabia 4 591 0.7× 482 0.7× 343 0.6× 70 0.6× 24 0.5× 8 625
L. Munoz United States 8 508 0.6× 421 0.6× 549 1.0× 29 0.3× 67 1.5× 11 613
Aude Hofleitner United States 9 521 0.6× 445 0.6× 299 0.6× 91 0.8× 61 1.4× 20 670
Srinivasa Ravi Chandra United States 3 352 0.4× 277 0.4× 187 0.3× 48 0.4× 24 0.5× 5 386
Tsuna Sasaki Japan 12 398 0.5× 614 0.8× 322 0.6× 79 0.7× 113 2.5× 37 730
Mohammadreza Saeedmanesh Switzerland 10 448 0.5× 541 0.7× 562 1.0× 25 0.2× 110 2.4× 23 700
P B Hunt 3 461 0.5× 451 0.6× 605 1.1× 15 0.1× 130 2.9× 5 716
Ming Zhong Canada 10 368 0.4× 267 0.4× 166 0.3× 63 0.6× 59 1.3× 18 432

Countries citing papers authored by Iwao Okutani

Since Specialization
Citations

This map shows the geographic impact of Iwao Okutani'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 Iwao Okutani with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Iwao Okutani more than expected).

Fields of papers citing papers by Iwao Okutani

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Iwao Okutani. 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 Iwao Okutani. The network helps show where Iwao Okutani may publish in the future.

Co-authorship network of co-authors of Iwao Okutani

This figure shows the co-authorship network connecting the top 25 collaborators of Iwao Okutani. A scholar is included among the top collaborators of Iwao Okutani 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 Iwao Okutani. Iwao Okutani is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

16 of 16 papers shown
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Okutani, Iwao, et al.. (2004). Evaluation of Interaction Between Fundamental Landscapes and Sounds in a District via Brain Wave. IEEJ Transactions on Electronics Information and Systems. 124(9). 1704–1711. 1 indexed citations
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Okutani, Iwao, et al.. (1997). LAND-COVER CLASSIFICATION OF REMOTELY SENSED DATA USING KALMAN FILTERING. Doboku Gakkai Ronbunshu. 1997(576). 123–131.
8.
Okutani, Iwao. (1987). THE KALMAN FILTERING APPROACHES IN SOME TRANSPORTATION AND TRAFFIC PROBLEMS. 44 indexed citations
9.
Okutani, Iwao, D.E. Beskos, & Panos G. Michalopoulos. (1986). Finite element analysis of freeway dynamics. 3(2). 85–92. 5 indexed citations
10.
Beskos, Dimitrios E., Iwao Okutani, & Panos G. Michalopoulos. (1984). Testing of dynamic models for signal controlled intersections. Transportation Research Part B Methodological. 18(4-5). 397–408. 5 indexed citations
11.
Okutani, Iwao. (1984). EQUILIBRIUM FLOWS IN A NETWORK WITH CONGESTED LINKS. 5 indexed citations
12.
Okutani, Iwao & Yorgos J. Stephanedes. (1984). Dynamic prediction of traffic volume through Kalman filtering theory. Transportation Research Part B Methodological. 18(1). 1–11. 851 indexed citations breakdown →
13.
Okutani, Iwao. (1977). A PROBABILISTIC ASPECT ON SPACE OCCUPANCY AND MEASUREMENT ERROR OF TRAFFIC DENSITY. Proceedings of the Japan Society of Civil Engineers. 1977(258). 109–116. 1 indexed citations
14.
Okutani, Iwao. (1974). OPTIMIZATION OF TRAFFIC SIGNALS OFFSET IN A NETWORK THROUGH DYNAMIC PROGRAMMING. Proceedings of the Japan Society of Civil Engineers. 1974(221). 59–71. 1 indexed citations
15.
Okutani, Iwao & Noriyuki Inoue. (1973). ESTIMATION OF TRAVELING TIME BETWEEN RAMPS AND DISCHARGE CONTROL ON EXPRESSWAY. Proceedings of the Japan Society of Civil Engineers. 1973(211). 99–107.
16.
Okutani, Iwao. (1970). DETERMINATION OF LOSS MINIMIZING OFFSETS PATTERN THROUGH THE MAXIMUM PRINCIPLE. Proceedings of the Japan Society of Civil Engineers. 1970(174). 85–95. 8 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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