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Record W1969090338 · doi:10.1190/1.1816881

2D and 3D anisotropic depth migration case histories

2002· article· en· W1969090338 on OpenAlexaboutno aff
Rob Vestrum

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicSeismic Imaging and Inversion Techniques
Canadian institutionsnot available
Fundersnot available
KeywordsGeologyAnisotropyComputer scienceOpticsPhysics

Abstract

fetched live from OpenAlex

PreviousNext No AccessSEG Technical Program Expanded Abstracts 20022D and 3D anisotropic depth migration case historiesAuthors: Rob VestrumRob VestrumVeritas GeoServices Ltd.https://doi.org/10.1190/1.1816881 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1816881FiguresReferencesRelatedDetailsCited byDepth migration as a valuable tool for prospect derisking in the Colombian FoothillsSergio Ibanez Poveda, Mario Patino, and John Mathewson5 July 2017 | Interpretation, Vol. 5, No. 4Reflection point sideslip and smear in imaging below dipping anisotropic media1 December 2009 | Geophysical Prospecting, Vol. 58, No. 4The effects of anisotropy on Canadian foothills exploration: A case historyMargaret A. Stratton and Peter Vermeulen6 October 2006Overcoming thrust‐belt imaging problems in Magdalena Valley, ColombiaJon Gittins, Rob Vestrum, and Ralph Gillcrist3 January 2005Sideslip and smear beneath dipping transversely isotropic strataRob Vestrum and Peter Vermeulen3 January 20053D anisotropic depth migration in Blackstone, Alberta: A case historyRob Vestrum, Dave Mackie, and Alana Schoepp3 January 2005Impact of the effects of anisotropy in Canadian foothills exploration: A case historyMargaret A. Stratton3 January 2005 SEG Technical Program Expanded Abstracts 2002ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2002 Pages: 2478 publication data© 2002 Copyright © 2002 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 03 Jan 2005 CITATION INFORMATION Rob Vestrum, (2002), "2D and 3D anisotropic depth migration case histories," SEG Technical Program Expanded Abstracts : 1256-1259. https://doi.org/10.1190/1.1816881 Plain-Language Summary PDF DownloadLoading ...

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.040
Threshold uncertainty score0.080

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0090.001

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.

Opus teacher head0.019
GPT teacher head0.198
Teacher spread0.179 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designOther design
Domainnot available
GenreEmpirical

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".

Quick stats

Citations14
Published2002
Admission routes1
Has abstractyes

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