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Record W4233585779 · doi:10.22215/etd/2014-10523

Empirical Study of Performance of Classification and Clustering Algorithms on Binary Data with Real-World Applications

2014· dissertation· en· W4233585779 on OpenAlexaff
Stephanie Nahmias

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldComputer Science
TopicData Mining Algorithms and Applications
Canadian institutionsCarleton University
Fundersnot available
KeywordsCluster analysisSingle-linkage clusteringHierarchical clusteringComputer scienceCURE data clustering algorithmCorrelation clusteringData miningPattern recognition (psychology)CentroidMedoidCanopy clustering algorithmFuzzy clusteringArtificial intelligenceEntropy (arrow of time)Rand index

Abstract

fetched live from OpenAlex

This thesis compares statistical algorithms paired with dissimilarity measures for their ability to identify clusters in benchmark binary datasets. The techniques examined are visualization, classification, and clustering. To visually explore for clusters, we used parallel coordinates plots and heatmaps. The classification algorithms used were neural networks and classification trees. Clustering algorithms used were: partitioning around centroids, partitioning around medoids, hierarchical agglomerative clustering, and hierarchical divisive clustering. x 6.3 ANOVA for ASW . . . . . . . .

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: Empirical · Consensus signal: Empirical
Teacher disagreement score0.945
Threshold uncertainty score0.732

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 science0.0020.000
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 head0.068
GPT teacher head0.354
Teacher spread0.286 · 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
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
Published2014
Admission routes1
Has abstractyes

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