Simulation on group deleted potentials for diagnostics of survival regression
The identification of multiple high leverage points (HLP) cannot be successfully carried out by using a method developed for handling single HLP. The situation gets worse when it concerns Weibull distributed censored response data. The authors proposed method for identifying multiple HLPs. The propo...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
David Publishing Company
2010
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/16725/ http://psasir.upm.edu.my/id/eprint/16725/1/Simulation%20on%20group%20deleted%20potentials%20for%20diagnostics%20of%20survival%20regression.pdf |
| _version_ | 1848843041637400576 |
|---|---|
| author | Ibrahim, Noor Akma Abdul, Kudus Daud, Isa |
| author_facet | Ibrahim, Noor Akma Abdul, Kudus Daud, Isa |
| author_sort | Ibrahim, Noor Akma |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The identification of multiple high leverage points (HLP) cannot be successfully carried out by using a method developed for handling single HLP. The situation gets worse when it concerns Weibull distributed censored response data. The authors proposed method for identifying multiple HLPs. The proposed method is developed based on the similar problem for handling multiple HLPs in multiple linear regression setting. Simulation study is conducted for assessing its performance across a wide range of scenarios. It is be found that the proposed method has good capability to identify multiple HLPs. As a general rule, the proposed method performs better in higher covariate space dimension, larger number of outlying regressor variables, larger outlying leverage distance, larger magnitude of unusualness in response-space, larger number of multiple points clouds and higher percentage of censoring. |
| first_indexed | 2025-11-15T08:08:43Z |
| format | Article |
| id | upm-16725 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:08:43Z |
| publishDate | 2010 |
| publisher | David Publishing Company |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-167252015-09-29T01:18:31Z http://psasir.upm.edu.my/id/eprint/16725/ Simulation on group deleted potentials for diagnostics of survival regression Ibrahim, Noor Akma Abdul, Kudus Daud, Isa The identification of multiple high leverage points (HLP) cannot be successfully carried out by using a method developed for handling single HLP. The situation gets worse when it concerns Weibull distributed censored response data. The authors proposed method for identifying multiple HLPs. The proposed method is developed based on the similar problem for handling multiple HLPs in multiple linear regression setting. Simulation study is conducted for assessing its performance across a wide range of scenarios. It is be found that the proposed method has good capability to identify multiple HLPs. As a general rule, the proposed method performs better in higher covariate space dimension, larger number of outlying regressor variables, larger outlying leverage distance, larger magnitude of unusualness in response-space, larger number of multiple points clouds and higher percentage of censoring. David Publishing Company 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16725/1/Simulation%20on%20group%20deleted%20potentials%20for%20diagnostics%20of%20survival%20regression.pdf Ibrahim, Noor Akma and Abdul, Kudus and Daud, Isa (2010) Simulation on group deleted potentials for diagnostics of survival regression. Journal of Materials Science and Engineering, 4 (7). pp. 90-95. ISSN 1934-8959 Regression analysis Computer simulation English |
| spellingShingle | Regression analysis Computer simulation Ibrahim, Noor Akma Abdul, Kudus Daud, Isa Simulation on group deleted potentials for diagnostics of survival regression |
| title | Simulation on group deleted potentials for diagnostics of survival regression |
| title_full | Simulation on group deleted potentials for diagnostics of survival regression |
| title_fullStr | Simulation on group deleted potentials for diagnostics of survival regression |
| title_full_unstemmed | Simulation on group deleted potentials for diagnostics of survival regression |
| title_short | Simulation on group deleted potentials for diagnostics of survival regression |
| title_sort | simulation on group deleted potentials for diagnostics of survival regression |
| topic | Regression analysis Computer simulation |
| url | http://psasir.upm.edu.my/id/eprint/16725/ http://psasir.upm.edu.my/id/eprint/16725/1/Simulation%20on%20group%20deleted%20potentials%20for%20diagnostics%20of%20survival%20regression.pdf |