Outlier analysis for correlation verifying test of roller integrated compaction measurement

Zhihong Nie, Xiang Wang, Tan Jiao, Yuan Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Identifying the outliers from the correlation verifying test data is essential to the roller-integrated compaction measurement (IRICM). Due to the variant filler properties, lift thickness, moisture ratio, and various roller modes, outliers may arise and result in the misunderstanding of the relationships between the roller-integrated compaction measurement values (IRCMV) and in-situ compaction test values (IICTV). The distance-based outlier model was established to characterize the dispersion degree of the data. Then the estimation neighbor method was used to identify the out-of-trend points, the outliers. The RICM field experiment was conducted in the calibration strips to test and verify the proposed method. The results revealed that the proposed method enabled the correlation and regression coefficients more accurate. This research demonstrates that the outlier analysis techniques for data preprocessing could be applied to RICM.

Original languageEnglish
Title of host publicationInnovative and Sustainable Use of Geomaterials and Geosystems - Selected Papers from the Proceedings of the Geo-Hubei 2014 International Conference on Sustainable Infrastructure
PublisherAmerican Society of Civil Engineers (ASCE)
Pages17-24
Number of pages8
Edition245 GSP
ISBN (Print)9780784478455
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventGeo-Hubei 2014 International Conference on Sustainable Infrastructure: Innovative and Sustainable Use of Geomaterials and Geosystems - Yichang, Hubei, China
Duration: 20 Jul 201422 Jul 2014

Publication series

NameGeotechnical Special Publication
Number245 GSP
ISSN (Print)0895-0563

Conference

ConferenceGeo-Hubei 2014 International Conference on Sustainable Infrastructure: Innovative and Sustainable Use of Geomaterials and Geosystems
Country/TerritoryChina
CityYichang, Hubei
Period20/07/1422/07/14

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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