MétaCan
Menu
Back to cohort
Record W2155259264 · doi:10.1109/iembs.1990.691251

A New Regularization Method Applied To Regression Problems In Electrocardiography

2005· article· en· W2155259264 on OpenAlexaff
M. Draghici, P. Savard, F.A. Roberge

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMathematics
TopicStatistical and numerical algorithms
Canadian institutionsPolytechnique Montréal
Fundersnot available
KeywordsRegularization (linguistics)Inverse problemInverseMathematicsApplied mathematicsRegressionLinear regressionMatrix (chemical analysis)AlgorithmRegression analysisMathematical optimizationComputer scienceStatisticsArtificial intelligenceMathematical analysis

Abstract

fetched live from OpenAlex

In this paper, we present some results of a new regularization method for systems of ill-posed problems related to the direct and inverse problems of electrocardigraphy; more precisely, for given matrix H of measured epicardial potentials and matrix B of measured thoracic potentials, we search for the best transfer matrix in the sense that it is simultaneously good for direct and inverse problems. This concept has permitted us to calculate an optimal value a = for the first order Tykhonov regularisation parameter. Results for direct and inverse problems with (a = a,,,) are compared with results for CY = 0 (standard linear regression) and CY = lo-'.

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)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0020.001

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 head0.024
GPT teacher head0.326
Teacher spread0.302 · 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 designSimulation or modeling
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

Citations0
Published2005
Admission routes1
Has abstractyes

Explore more

Same topicStatistical and numerical algorithmsFrench-language works237,207