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Agrupamento de dados em fluxos contínuos com estimativa automática do número de grupos

2015· dissertation· pt· W2614570780 on OpenAlexaff
Jonathan de Andrade Silva

Bibliographic record

Venuenot available
Typedissertation
Languagept
FieldComputer Science
TopicData Stream Mining Techniques
Canadian institutionsProfessional Engineers Ontario
FundersConselho Nacional de Desenvolvimento Científico e TecnológicoCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFundação de Amparo à Pesquisa do Estado de São PauloUniversity of Pennsylvania
KeywordsPhysicsComputer scienceHumanitiesGeographyPhilosophy

Abstract

fetched live from OpenAlex

Tcnicas de agrupamento de dados usualmente assumem que o conjunto de dados de tamanho fixo e pode ser alocado na memria. Neste contexto, um desafio consiste em aplicar tcnicas de agrupamento em bases de dados de tamanho ilimitado, com dados gerados continuamente e em ambientes dinmicos. Dados gerados nessas condies originam o que se convencionou chamar de Fluxo Contnuo de Dados (FCD). Em aplicaes de FCD, operaes de acesso aos dados so restritas a apenas uma leitura ou a um pequeno nmero de acessos aos dados, com limitaes de memria e de tempo de processamento. Alm disso, a distribuio dos dados gerados por essas fontes pode ser no estacionria, ou seja, podem ocorrer mudanas ao longo do tempo, denominadas de mudanas de conceito

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)0.002
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.893
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0020.001
Open science0.0050.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.001

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 head0.029
GPT teacher head0.342
Teacher spread0.313 · 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.

Study designSimulation or modeling
Domainnot available
GenreMethods

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

Citations1
Published2015
Admission routes1
Has abstractyes

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