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Sensitivity of censored data analysis to determine the characteristic value of structural timber
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pang, Sung-Jun | - |
dc.contributor.author | Lee, Hyeon-Jeong | - |
dc.contributor.author | Ahn, Kyung-Sun | - |
dc.contributor.author | Oh, Jung-Kwon | - |
dc.date.accessioned | 2020-06-25T01:53:12Z | - |
dc.date.available | 2020-06-25T10:55:28Z | - |
dc.date.issued | 2020-05-24 | - |
dc.identifier.citation | Journal of Wood Science. 2020 May 24;66(1):39 | ko_KR |
dc.identifier.uri | https://doi.org/10.1186/s10086-020-01885-0 | - |
dc.identifier.uri | https://hdl.handle.net/10371/168511 | - |
dc.description.abstract | In structural timber tests, unintended failure mechanisms occur frequently in specimens and their results are called censored data. There are two censored data analysis: censored maximum likelihood estimation (CMLE) and Kaplan–Meier (KM) method. In this study, the precision of the censored data analysis was investigated to determine the characteristic value, 5th percentile value, of the structural timber. The results show that (1) the 5th percentile value was underestimated by ordinary data analysis methods; maximum likelihood estimation (MLE) and Order statistics. (2) CMLE with 30% lower tail censored data and KM method provided much more precise 5th percentile value. (3) The amount of under-measurement (5MPa, 10MPa, and 15MPa in this simulation study) did not show significant effect on the 5th percentile determination in CMLE and KM method, but the proportion of censored data (percentage of unintended failure specimen; 10%, 20%, 30%, and 40%) affected the determination of 5th percentile value. (4) CMLE with 30% lower tail censored data and KM method showed good agreement in case that the data included unintended failure data up to 20%. | ko_KR |
dc.description.sponsorship | (1) This work was supported by Research Resettlement Fund for the new fac‑ulty of Seoul National University. (2) This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2017R1A2B1010748). | ko_KR |
dc.language.iso | en | ko_KR |
dc.publisher | Springer Open | ko_KR |
dc.subject | Characteristic value | - |
dc.subject | Structural timber | - |
dc.subject | Tensile strength | - |
dc.subject | Censored data | - |
dc.subject | Maximum likelihood estimation | - |
dc.subject | Kaplan–Meier method | - |
dc.title | Sensitivity of censored data analysis to determine the characteristic value of structural timber | ko_KR |
dc.type | Article | ko_KR |
dc.contributor.AlternativeAuthor | 방성준 | - |
dc.contributor.AlternativeAuthor | 이현정 | - |
dc.contributor.AlternativeAuthor | 안경선 | - |
dc.contributor.AlternativeAuthor | 오중권 | - |
dc.citation.journaltitle | Journal of Wood Science | ko_KR |
dc.language.rfc3066 | en | - |
dc.rights.holder | The Author(s) | - |
dc.date.updated | 2020-06-16T09:26:11Z | - |
dc.citation.number | 1 | ko_KR |
dc.citation.startpage | 39 | ko_KR |
dc.citation.volume | 66 | ko_KR |
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