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Record W1826701780 · doi:10.5430/air.v4n2p112

Cascaded techniques for improving emphysema classification in computed tomography images

2015· article· en· W1826701780 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueArtificial Intelligence Research · 2015
Typearticle
Languageen
FieldComputer Science
TopicTime Series Analysis and Forecasting
Canadian institutionsnot available
Fundersnot available
KeywordsReceiver operating characteristicArtificial intelligencePattern recognition (psychology)Local binary patternsHistogramComputed tomographyTomographyFractalComputer scienceMathematicsImage (mathematics)MedicineRadiologyStatistics

Abstract

fetched live from OpenAlex

The previous studies demonstrated the effectiveness of the multi-fractal based method for the classification of histo-pathologicalcases by calculating the local singularity coefficients of an image using different intensity measures. This paper proposed toimprove the previous results by investigating the features derived from the combination of the alpha-histograms and the multifractaldescriptors in the classification of Emphysema in computed tomography (CT) images. The performances of the classifiersare measured by using the classification accuracy (error matrix) and the area under the receiver operating characteristic curve(AUC). And further, the experimental results compared well with the local binary patterns (LBP) approach, a state-of-the-artmeasure for pulmonary Emphysema. The results also show that the proposed cascaded approach significantly improves theoverall classification accuracy.

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.

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)0.004
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 score0.909
Threshold uncertainty score0.513

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0040.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.003
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
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 head0.259
GPT teacher head0.415
Teacher spread0.156 · 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