MétaCan
Menu
Back to cohort
Record W2554498112 · doi:10.1109/ijcnn.2016.7727579

LVC: Local Variance-based Clustering

2016· article· en· W2554498112 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

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Clustering Algorithms Research
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsCluster analysisDBSCANComputer scienceSpectral clusteringVariance (accounting)Data miningArtificial intelligenceOutlierPattern recognition (psychology)CURE data clustering algorithmCorrelation clusteringClustering high-dimensional dataSingle-linkage clustering

Abstract

fetched live from OpenAlex

Clustering has raised as an important problem in many different domains like biology, computer vision, text analysis and robotics. Thus, many different clustering techniques were developed to address this essential problem and propose astonishing solutions to conquer it. However, traditional clustering techniques suffer either from their limitations to detect specific shapes like K-means and PAM or from their limitations to detect clusters with specific densities as in DBSCAN and SNN. Moreover, exploiting the data relations and similarities has been proven to provide better insights to enhance the clustering quality as shown in spectral clustering and affinity propagation. Our observations have shown that using variance of similarities between each data point and its neighbors can well distinguish between within-cluster points, points connecting two clusters and outlier points. Therefore, we have utilized this variance measure to calculate each data point density and developed a Local Variance-based Clustering (LVC) technique that employs this measure to cluster the data. Experimental results show that LVC outperforms spectral clustering and affinity propagation in clustering quality using control charts, ecoli and images datasets, while maintaining a good running time. In addition, results show that LVC can detect topics from Twitter with higher topic recall by 15% and higher term precision by 3% over DBSCAN.

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.983
Threshold uncertainty score0.587

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 science0.0010.001
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 head0.022
GPT teacher head0.282
Teacher spread0.260 · 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

Quick stats

Citations3
Published2016
Admission routes1
Has abstractyes

Explore more

Same topicAdvanced Clustering Algorithms ResearchFrench-language works237,207