Kei Hiroi

475 total citations
49 papers, 310 citations indexed

About

Kei Hiroi is a scholar working on Electrical and Electronic Engineering, Computer Vision and Pattern Recognition and Transportation. According to data from OpenAlex, Kei Hiroi has authored 49 papers receiving a total of 310 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Electrical and Electronic Engineering, 16 papers in Computer Vision and Pattern Recognition and 14 papers in Transportation. Recurrent topics in Kei Hiroi's work include Indoor and Outdoor Localization Technologies (17 papers), Human Mobility and Location-Based Analysis (12 papers) and Context-Aware Activity Recognition Systems (9 papers). Kei Hiroi is often cited by papers focused on Indoor and Outdoor Localization Technologies (17 papers), Human Mobility and Location-Based Analysis (12 papers) and Context-Aware Activity Recognition Systems (9 papers). Kei Hiroi collaborates with scholars based in Japan, Finland and North Macedonia. Kei Hiroi's co-authors include Nobuo Kawaguchi, Katsuhiko Kaji, Takuro Yonezawa, Kenichi Ishibashi, Yasuo Kimura, Michio Niwano, Ko‐ichiro Miyamoto, Hisao Ishii, Ken Sakurada and Shunsuke Aoki and has published in prestigious journals such as Applied Physics Letters, IEEE Sensors Journal and IEEJ Transactions on Electronics Information and Systems.

In The Last Decade

Kei Hiroi

46 papers receiving 297 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Hiroi Japan 10 143 117 57 47 40 49 310
Branislav M. Todorović Serbia 11 168 1.2× 65 0.6× 48 0.8× 47 1.0× 31 0.8× 57 335
Saandeep Depatla United States 5 236 1.7× 64 0.5× 23 0.4× 24 0.5× 61 1.5× 6 319
Xiaochen Liu China 11 70 0.5× 140 1.2× 92 1.6× 51 1.1× 35 0.9× 38 342
Chen Su China 11 92 0.6× 52 0.4× 15 0.3× 21 0.4× 17 0.4× 32 372
Yuqing Yin China 8 301 2.1× 46 0.4× 86 1.5× 33 0.7× 98 2.5× 27 389
Jung Ho Lee South Korea 9 190 1.3× 30 0.3× 87 1.5× 57 1.2× 100 2.5× 31 309
Samarendra Nath Sur India 11 219 1.5× 33 0.3× 103 1.8× 55 1.2× 24 0.6× 76 436
Zhaohui Li China 5 210 1.5× 35 0.3× 68 1.2× 29 0.6× 53 1.3× 26 286
Pei‐Jun Lee Taiwan 10 59 0.4× 268 2.3× 37 0.6× 35 0.7× 13 0.3× 83 413

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).

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.

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.

All Works

20 of 20 papers shown
1.
Murao, Kazuya, Hristijan Gjoreski, Paula Lago, et al.. (2024). 12th International Workshop on Human Activity Sensing Corpus and Applications (HASCA). FreiDok plus (Universitätsbibliothek Freiburg). 956–959.
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Hiroi, Kei, et al.. (2021). An End-to-End BLE Indoor Localization Method Using LSTM. Journal of Information Processing. 29(0). 58–69. 4 indexed citations
4.
Hiroi, Kei, et al.. (2019). Road Surface Condition Inspection Using a Laser Scanner Mounted on an Autonomous Driving Car. 826–831. 11 indexed citations
5.
Hiroi, Kei, et al.. (2019). Basic Study of BLE Indoor Localization using LSTM-based Neural Network (poster). 558–559. 4 indexed citations
6.
Hiroi, Kei, et al.. (2019). Hybrid Activity Recognition for Ballroom Dance Exercise using Video and Wearable Sensor. 112–117. 7 indexed citations
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8.
Kawaguchi, Nobuo, et al.. (2019). End-to-end walking speed estimation method for smartphone PDR using DualCNN-LSTM.. 463–470. 6 indexed citations
9.
Kaji, Katsuhiko, et al.. (2017). A location estimation method using mobile BLE tags with tandem scanners. 577–586. 7 indexed citations
10.
Hiroi, Kei & Nobuo Kawaguchi. (2016). FloodEye: Real-time flash flood prediction system for urban complex water flow. 1–3. 28 indexed citations
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Hiroi, Kei, Yoichi Shinoda, & Nobuo Kawaguchi. (2016). A better positioning with BLE tag by RSSI compensation through crowd density estimation. 831–840. 2 indexed citations
13.
Wang, Weimin, et al.. (2015). A Mobile System for 3D Indoor Mapping Using LiDAR and Panoramic Camera. 2015(1). 1–7. 3 indexed citations
14.
Kaji, Katsuhiko, et al.. (2015). A pedestrian passage detection method by using spinning magnets on corridors. 411–414. 3 indexed citations
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Kaji, Katsuhiko, et al.. (2014). Design and Implementation of Event Information Summarization System. 13 1. 572–577. 1 indexed citations
18.
Kaji, Katsuhiko, et al.. (2014). Pedestrian dead reckoning based on human activity sensing knowledge. 797–806. 11 indexed citations
19.
Hiroi, Kei, et al.. (2010). A Proposal of Disaster Information System Using Internet. IEICE Technical Report; IEICE Tech. Rep.. 109(438). 129–134. 1 indexed citations
20.
Hiroi, Kei, et al.. (2010). A proposal of disaster information system based on the Internet technologies. 1848–1853. 2 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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