Evidence map›Paper›PMID 30645617›Full record

ArticlePloS one2019

Clustering algorithms: A comparative approach.

Mayra Z Rodriguez, Cesar H Comin, Dalcimar Casanova, Odemir M Bruno, Diego R Amancio, Luciano da F Costa, Francisco A Rodrigues

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In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

111 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Observational
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  15. DONKEY: A Flexible and Accurate Algorithm for Clustering.Journal of chemical theory and computation · 2025
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51 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Mayra Z RodriguezInstitute of Mathematics and Computer Science, University of São Paulo, São Carlos, São Paulo, Brazil.
Cesar H CominDepartment of Computer Science, Federal University of São Carlos, São Carlos, São Paulo, Brazil.ORCID 0000-0003-1207-4982
Dalcimar CasanovaFederal University of Technology, Paraná, Paraná, Brazil.
Odemir M BrunoSão Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil.
Diego R AmancioInstitute of Mathematics and Computer Science, University of São Paulo, São Carlos, São Paulo, Brazil.
Luciano da F CostaSão Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil.
Francisco A RodriguesInstitute of Mathematics and Computer Science, University of São Paulo, São Carlos, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many real-world systems can be studied in terms of pattern recognition tasks, so that proper use (and understanding) of machine learning methods in practical applications becomes essential. While many classification methods have been proposed, there is no consensus on which methods are more suitable for a given dataset. As a consequence, it is important to comprehensively compare methods in many possible scenarios. In this context, we performed a systematic comparison of 9 well-known clustering methods available in the R language assuming normally distributed data. In order to account for the many possible variations of data, we considered artificial datasets with several tunable properties (number of classes, separation between classes, etc). In addition, we also evaluated the sensitivity of the clustering methods with regard to their parameters configuration. The results revealed that, when considering the default configurations of the adopted methods, the spectral approach tended to present particularly good performance. We also found that the default configuration of the adopted implementations was not always accurate. In these cases, a simple approach based on random selection of parameters values proved to be a good alternative to improve the performance. All in all, the reported approach provides subsidies guiding the choice of clustering algorithms.

Indexed as

Cluster AnalysisAlgorithmsHumansLanguageMachine LearningNormal Distribution

Identifiers

PMID30645617
PMCPMC6333366

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.