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Record W2346141776 · doi:10.1109/mmul.2016.27

A Novel Semi-Supervised Dimensionality Reduction Framework

2016· article· en· W2346141776 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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueIEEE Multimedia · 2016
Typearticle
Languageen
FieldComputer Science
TopicFace and Expression Recognition
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsDimensionality reductionNonlinear dimensionality reductionManifold alignmentCluster analysisManifold (fluid mechanics)Computer sciencePattern recognition (psychology)Artificial intelligenceCurse of dimensionalityExploitDimension (graph theory)Class (philosophy)Reduction (mathematics)Machine learningMathematics

Abstract

fetched live from OpenAlex

In pattern recognition, when a dataset contains multiple classes, and the structures of the classes are different, single manifold assumption can hardly guarantee the best classification performance. It is more reasonable to assume each class lies on a separate manifold. Here, the authors propose a novel framework of semisupervised dimensionality reduction for multimanifold learning. To address the issue of label insufficiency under the multimanifold assumption, they propose solving three challenging problems: clustering unlabeled samples into different manifolds using sparse manifold clustering, even when they are close to each other; predicting the label of image sets instead of a single sample by calculating the manifold-to-manifold distance; and constructing three kinds of graphs for each manifold to exploit more information from unlabeled samples. During the investigation, they demonstrated that most existing dimension-reduction methods based on manifold learning can be viewed as special cases of the proposed framework. Experimental results verify the advantages and effectiveness of this new framework.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.607
Threshold uncertainty score1.000

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 communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.001

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 head0.030
GPT teacher head0.266
Teacher spread0.236 · 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