Investigation of characteristic values in TDR waveform using SHapley Additive exPlanations (SHAP) for dielectric constant estimation during curing time

Won-Taek Hong , WooJin Han , Yong-Hoon Byun , Hyung-Koo Yoon

Abstract

As materials cure, the internal electrical flow changes, leading to variations in the dielectric constant over time. This study aims to assess the impact of voltage values extracted from time domain reflectometry (TDR) waveforms, measured during the curing of materials, on predicting the dielectric constant. The experiments are conducted over a curing period ranging from 60 to 8640 minutes, with 30 TDR trials. From the measured waveforms, values of V0, V1, V2, Vf, and Δt are deduced. Additionally, curing time is included as an input variable. Groups A and B are distinguished based on the presence or absence of

Key Words

curing time; feature contribution; partial dependence (PD) algorithm; SHapley Additive exPlanations (SHAP) algorithm; time domain reflectometry (TDR)

Address

(1) Won-Taek Hong — Department of Civil & Environmental Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
(2) WooJin Han — School of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
(3) Yong-Hoon Byun — Department of Agricultural Civil Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
(4) Hyung-Koo Yoon — Department of Construction and Disaster Prevention Engineering, Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, 34520, Republic of Korea.

PDF Viewer

Preview is limited to the first 3 pages. Sign in to access the full PDF.

← Back to Volume 34, No. 1