Kei Hiroi

82 total papers · 470 total citations
9 papers, 48 citations indexed

About

Kei Hiroi is a scholar working on Computer Vision and Pattern Recognition, Transportation and Computer Science Applications. According to data from OpenAlex, Kei Hiroi has authored 9 papers receiving a total of 48 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Computer Vision and Pattern Recognition, 3 papers in Transportation and 2 papers in Computer Science Applications. Recurrent topics in Kei Hiroi’s work include Context-Aware Activity Recognition Systems (2 papers), Human Mobility and Location-Based Analysis (2 papers) and Indoor and Outdoor Localization Technologies (2 papers). Kei Hiroi is often cited by papers focused on Context-Aware Activity Recognition Systems (2 papers), Human Mobility and Location-Based Analysis (2 papers) and Indoor and Outdoor Localization Technologies (2 papers). Kei Hiroi collaborates with scholars based in Japan, Germany and North Macedonia. Kei Hiroi's co-authors include Nobuo Kawaguchi, Yasuo Kimura, Michio Niwano, Hisao Ishii, Ko‐ichiro Miyamoto, Kenichi Ishibashi, Takuro Yonezawa, Katsuhiko Kaji, Shunsuke Aoki and Hiroyuki Sano and has published in prestigious journals such as Applied Physics Letters, IEEE Sensors Journal and IEEJ Transactions on Electronics Information and Systems.

Co-authorship network of co-authors of Kei Hiroi

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

Kei Hiroi

6 papers receiving 47 citations

Fields of papers citing papers by Kei Hiroi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kei Hiroi

Since Specialization
Citations

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

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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2026