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Record W3146056851

2 - Filtrage de signaux à échantillonnage irrégulier

2001· article· fr· W3146056851 on OpenAlexvenueno aff
Fontaine, Ragot

Bibliographic record

VenueTraitement du signal · 2001
Typearticle
Languagefr
FieldEngineering
TopicControl Systems and Identification
Canadian institutionsnot available
Fundersnot available
KeywordsFilter (signal processing)Transfer functionInterpolation (computer graphics)SIGNAL (programming language)Analogue filterLow-pass filterButterworth filterComputer scienceSignal processingAlgorithmMathematicsDigital filterHigh-pass filterArtificial intelligenceTelecommunicationsComputer visionEngineering
DOInot available

Abstract

fetched live from OpenAlex

Some systems are capable to provide information only at irregular time intervals, or to preserve only the most representative samples of a signal, in a way to reduce the amount of recorded information. Consequently, signals stemming from these systems, are irregularly sampled and need to be processed under this form. The aim of our paper is to propose a N-order low-pass and band-pass filtering tool applied to such irregularly sampled signals. The originality of the procedure resides in the absence of total reconstruction of the original signal by any interpolation method. The signal, whose information are only known at some instants, is directly processed. From an analogical transfer function representing the processing to undertake (filtering), the corresponding state space system is first determined, then solved and discretised with nonuniform time intervals. Thus, general and Butterworth lowpass and band-pass filters are developed. The irregularly sampled filter is compared to the normal filter having fixed sample intervals.

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)0.001
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: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.032
Threshold uncertainty score0.106

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0010.002
Scholarly communication0.0040.002
Open science0.0010.001
Research integrity0.0020.003
Insufficient payload (model declined to judge)0.0320.007

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 head0.012
GPT teacher head0.208
Teacher spread0.196 · 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
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
Published2001
Admission routes1
Has abstractyes

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