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Volume 14
Issue 12
10.3390/ijgi14120464
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Retraction of ISPRS Int. J. Geo-Inf. 2021, 10(1), 6.
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Retraction

RETRACTED: Zhao et al. Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6

by
Min Zhao
,
Danyang Qin
*,
Ruolin Guo
and
Xinxin Wang
Key Lab of Electronic and Communication Engineering, Heilongjiang University, Harbin 150080, China
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2025, 14(12), 464; https://doi.org/10.3390/ijgi14120464
Submission received: 18 November 2025 / Accepted: 21 November 2025 / Published: 28 November 2025
Versions Notes
The Journal retracts the article “Indoor floor localization based on multi-intelligent sensors” [1] cited above.
Following publication, concerns were brought to the attention of the Editorial Office regarding an overlap between this publication [1] and a previously published article [2] published by a different authorship group.
Adhering to our complaint procedure, the Editorial Office and Editorial Board conducted an investigation that confirmed there was a high level of similarity between these two articles [1,2], including with respect to equations, an algorithm, several figures and tables, and as the methodology, without proper citation. Consequently, the Editorial Board has decided to retract this publication [1], as per MDPI’s retraction policy (https://www.mdpi.com/ethics#_bookmark30) (accessed on 17 September 2025).
This retraction was approved by the Editor-in-Chief of the journal IJGI.
The authors did not provide a comment on this decision.

References

  1. Zhao, M.; Qin, D.; Guo, R.; Wang, X. RETRACTED: Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6. [Google Scholar] [CrossRef]
  2. Ashraf, I.; Hur, S.; Shafiq, M.; Park, Y. Floor Identification Using Magnetic Field Data with Smartphone Sensors. Sensors 2019, 19, 2538. [Google Scholar] [CrossRef] [PubMed]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

Share and Cite

MDPI and ACS Style

Zhao, M.; Qin, D.; Guo, R.; Wang, X. RETRACTED: Zhao et al. Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6. ISPRS Int. J. Geo-Inf. 2025, 14, 464. https://doi.org/10.3390/ijgi14120464

AMA Style

Zhao M, Qin D, Guo R, Wang X. RETRACTED: Zhao et al. Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6. ISPRS International Journal of Geo-Information. 2025; 14(12):464. https://doi.org/10.3390/ijgi14120464

Chicago/Turabian Style

Zhao, Min, Danyang Qin, Ruolin Guo, and Xinxin Wang. 2025. "RETRACTED: Zhao et al. Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6" ISPRS International Journal of Geo-Information 14, no. 12: 464. https://doi.org/10.3390/ijgi14120464

APA Style

Zhao, M., Qin, D., Guo, R., & Wang, X. (2025). RETRACTED: Zhao et al. Indoor Floor Localization Based on Multi-Intelligent Sensors. ISPRS Int. J. Geo-Inf. 2021, 10, 6. ISPRS International Journal of Geo-Information, 14(12), 464. https://doi.org/10.3390/ijgi14120464

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