Prestack elastic Kirchhoff migration for multicomponent seismic data in variable velocity media
Bibliographic record
Abstract
PreviousNext No AccessSEG Technical Program Expanded Abstracts 2000Prestack elastic Kirchhoff migration for multicomponent seismic data in variable velocity mediaAuthors: Aimin XueGeorge A. McMechanAimin XueVeritasDGC Inc., 715, Fifth Avenue, S.W., Suite 2200, Calgary, Alberta T2P 5A2, Canada and George A. McMechanCenter for lithospheric studies, The University of Texas at Dallas, Box 830688, Richardson, Texas 75083‐0688https://doi.org/10.1190/1.1816092 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1816092FiguresReferencesRelatedDetailsCited ByElastic least-squares reverse time migration in vertical transverse isotropic mediaJidong Yang, Hejun Zhu, George McMechan, Houzhu Zhang, and Yang Zhao9 October 2019 | GEOPHYSICS, Vol. 84, No. 6Isotropic elastic reverse time migration using the phase- and amplitude-corrected vector P- and S-wavefieldsJidong Yang, Hejun Zhu, Wenlong Wang, Yang Zhao, and Houzhu Zhang1 October 2018 | GEOPHYSICS, Vol. 83, No. 6Migration of Elastic Fields Based on Kirchhoff and Rayleigh Integrals17 February 2018A velocity tomography method in the angle domain for elastic vector wavefieldNing Qin, Zhenchun Li, and Kai Zhang25 October 2012Multicomponent joint migration velocity analysis in the angle domain for PP-waves and PS-wavesQizhen Du, Fang Li, Jing Ba, Yitong Zhu, and Bo Hou15 February 2012 | GEOPHYSICS, Vol. 77, No. 1Elastic Kirchhoff migration of vectorial wave-fields8 January 2009 | Applied Geophysics, Vol. 5, No. 4Vector imaging of converted wave data in laterally uniform media with VTI anisotropyCharlie Jing, Thomas A. Dickens, and Graham A. Winbow1 August 2006 | GEOPHYSICS, Vol. 71, No. 4Vector imaging of converted wave data in laterally uniform media with VTI anisotropyCharlie Jing, Thomas A. Dickens, and Graham A. Winbow7 December 2005 SEG Technical Program Expanded Abstracts 2000ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2000 Pages: 2484 publication data© 2000 Copyright © 2000 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 04 Jan 2005 CITATION INFORMATION Aimin Xue and George A. McMechan, (2000), "Prestack elastic Kirchhoff migration for multicomponent seismic data in variable velocity media," SEG Technical Program Expanded Abstracts : 449-452. https://doi.org/10.1190/1.1816092 Plain-Language Summary PDF DownloadLoading ...
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.136 | 0.041 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".