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Record W2295367484

A Novel Kernelized Classifier Based on the Combination of Partially Global and Local Characteristics.

2015· article· en· W2295367484 on OpenAlexaff
Riadh Ksantini, Raouf Gharbi

Bibliographic record

VenueLWA · 2015
Typearticle
Languageen
FieldComputer Science
TopicFace and Expression Recognition
Canadian institutionsUniversity of Windsor
Fundersnot available
KeywordsDecision boundaryKernel methodArtificial intelligenceSupport vector machinePattern recognition (psychology)Kernel (algebra)Computer scienceLinear discriminant analysisClassifier (UML)Nonparametric statisticsNormalityMathematicsData miningKernel Fisher discriminant analysisMachine learningStatistics
DOInot available

Abstract

fetched live from OpenAlex

The Kernel Support Vector Machine (KSVM) has achieved promising classication performance. However, since it is based only on local information (Support Vectors), it is sensitive to directions with large data spread. On the other hand, Kernel Nonparametric Discrimi- nant Analysis (KNDA) is an improvement over the more general Kernel Fisher Discriminant Analysis (KFD), where the normality assumption from KFD is relaxed. Furthermore, KNDA incorporates the partially global information in the Kernel space, to detect the dominant nor- mal directions to the decision surface, which represent the true data spread. However, KNDA relies on the choice of the -nearest neighbors ( NN 's) on the decision boundary. This paper introduces a novel Combined KSVM and KNDA (CKSVMNDA) model which controls the spread of the data, while maximizing a relative margin separating the data classes. This model is considered as an improvement to KSVM by incorporating the data spread information represented by the dominant normal directions to the decision boundary. This can also be viewed as an extension to the KNDA where the support vectors improve the choice of -nearest neighbors (

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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.948
Threshold uncertainty score0.137

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.040
GPT teacher head0.255
Teacher spread0.215 · 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 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
Published2015
Admission routes1
Has abstractyes

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