Evidence map›Paper›PMID 27258355›Full record

ArticlePloS one2016

kmlShape: An Efficient Method to Cluster Longitudinal Data (Time-Series) According to Their Shapes.

Christophe Genolini, René Ecochard, Mamoun Benghezal, Tarak Driss, Sandrine Andrieu, Fabien Subtil

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Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

41 citing papers in PubMed.

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  4. Longitudinal omics data analysis: approaches and applications.Computational and structural biotechnology journal · 2026
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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Christophe GenoliniInserm UMR 1027, University of Toulouse III, Toulouse, France.
René EcochardService de Biostatistique, Université Lyon 1, Villeurbanne, France.
Mamoun BenghezalInserm UMR 1027, University of Toulouse III, Toulouse, France.
Tarak DrissCeRSM (EA 2931), UFR STAPS, University Paris Ouest-Nanterre-La Défense, Nanterre, France.
Sandrine AndrieuInserm UMR 1027, University of Toulouse III, Toulouse, France.
Fabien SubtilService de Biostatistique, Université Lyon 1, Villeurbanne, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLongitudinal data are data in which each variable is measured repeatedly over time. One possibility for the analysis of such data is to cluster them. The majority of clustering methods group together individual that have close trajectories at given time points. These methods group trajectories that are locally close but not necessarily those that have similar shapes. However, in several circumstances, the progress of a phenomenon may be more important than the moment at which it occurs. One would thus like to achieve a partitioning where each group gathers individuals whose trajectories have similar shapes whatever the time lag between them.

methodIn this article, we present a longitudinal data partitioning algorithm based on the shapes of the trajectories rather than on classical distances. Because this algorithm is time consuming, we propose as well two data simplification procedures that make it applicable to high dimensional datasets.

resultsIn an application to Alzheimer disease, this algorithm revealed a "rapid decline" patient group that was not found by the classical methods. In another application to the feminine menstrual cycle, the algorithm showed, contrarily to the current literature, that the luteinizing hormone presents two peaks in an important proportion of women (22%).

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AlgorithmsCluster AnalysisData Interpretation, StatisticalHumans

Identifiers

PMID27258355
PMCPMC4892497

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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.