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Record W7097329518

Wavelet analysis and its applications Associated People:

2013· article· en· W7097329518 on OpenAlexaboutno aff

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicImage and Signal Denoising Methods
Canadian institutionsnot available
Fundersnot available
KeywordsWaveletBinWavelet transformBiharmonic equationLifting schemeNoise reductionImage (mathematics)Signal processingMultiresolution analysisRepresentation (politics)
DOInot available

Abstract

fetched live from OpenAlex

remarkable progresses on applications of approximation theory and wavelet analysis to computational mathematics. By constructing wavelet bases for numerical solutions of biharmonic equations, R. Q. Jia and W. Zhao have shown that the numerical performance of their computational scheme is much better than any other known methods. R. Q. Jia and his students introduced the fastest algorithm so far for image denoising based on difference schemes. Their algorithms have been successfully applied to image processing by several research groups. Due to its ability to extract the multiscale structure in the data, wavelet transform has been proved to be a very successful tool widely used in many applications such as image compression, signal denoising and sampling, and computer graphics. To efficiently capture edge information in high-dimensional data, it is of fundamental importance to have directional systems to remedy the shortcoming of tensor product wavelets. University of Alberta mathematician Bin Han has successfully built high-dimensional directional framelets which not only inherit the usual advantages of wavelets such as multiscale representation and fast algorithm but also has the ability to capture directionality for dimensional data. Bin Han and his students are currently working on the applications of such directional framelets in image processing.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.851
Threshold uncertainty score0.206

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.013
GPT teacher head0.262
Teacher spread0.249 · 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 teacher head, not a consensus.

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

Citations0
Published2013
Admission routes1
Has abstractyes

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