MétaCan
Menu
Back to cohort
Record W1522210392 · doi:10.1090/s0002-9939-01-06335-3

Hilbert transform of fia|`|

2001· article· en· W1522210392 on OpenAlexaff
Javad Mashreghi

Bibliographic record

VenueProceedings of the American Mathematical Society · 2001
Typearticle
Languageen
FieldMathematics
TopicNumerical methods in inverse problems
Canadian institutionsMcGill University
Fundersnot available
KeywordsHilbert transformMathematicsHilbert spectral analysisMathematical analysisSingular integralRiesz transformPure mathematicsIntegral transformFunction (biology)Hilbert R-treeAlmost everywhereReproducing kernel Hilbert spaceHilbert spaceRigged Hilbert spaceIntegral equation

Abstract

fetched live from OpenAlex

There are two general ways to evaluate the Hilbert transform of a function of real variable u ( x ) u(x) . We can extend u u to a harmonic function in the upper half plane by the Poisson integral formula. Non-tangential limit of its harmonic conjugate exists almost everywhere and is defined to be the Hilbert transform of u ( x ) u(x) . There is also a singular integral formula for the Hilbert transform of u ( x ) u(x) . It is fairly difficult to directly evaluate the Hilbert transform of u ( x ) u(x) . In this paper we give an explicit formula for the Hilbert transform of log ⁡ | f | \log |f| , where f f is a function in the Cartwright class.

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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.042
Threshold uncertainty score0.140

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0020.001
Science and technology studies0.0010.002
Scholarly communication0.0030.005
Open science0.0010.002
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0420.012

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 head0.043
GPT teacher head0.327
Teacher spread0.284 · 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 designTheoretical or conceptual
Domainnot available
GenreMethods

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

Citations9
Published2001
Admission routes1
Has abstractyes

Explore more

Same venueProceedings of the American Mathematical SocietySame topicNumerical methods in inverse problemsFrench-language works237,207