González Martínez, JM.; De Noord, O.; Ferrer, A. (2014). Multi-synchro: a novel approach for batch synchronization in scenarios of multiple asynchronisms. Journal of Chemometrics. 28(5):462-475. doi:10.1002/cem.2620
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/60808
Title:
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Multi-synchro: a novel approach for batch synchronization in scenarios of multiple asynchronisms
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Author:
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González Martínez, José María
de Noord, Onno
Ferrer, Alberto
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UPV Unit:
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Universitat Politècnica de València. Departamento de Estadística e Investigación Operativa Aplicadas y Calidad - Departament d'Estadística i Investigació Operativa Aplicades i Qualitat
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Issued date:
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Abstract:
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Batch synchronization has been widely misunderstood as being only needed when variable trajectories have uneven
length. Batch data are actually considered not synchronized when the key process events do not occur at ...[+]
Batch synchronization has been widely misunderstood as being only needed when variable trajectories have uneven
length. Batch data are actually considered not synchronized when the key process events do not occur at the
same point of process evolution, irrespective of whether the batch duration is the same for all batches or not.
Additionally, a single synchronization procedure is usually applied to all batches without taking into account the
nature of asynchronism of each batch, and the presence of abnormalities. This strategy may distort the original
trajectories and decrease the signal-to-noise ratio, affecting the subsequent multivariate analyses. The approach
proposed in this paper, named multisynchro, overcomes these pitfalls in scenarios of multiple asynchronisms.
The different types of asynchronisms are effectively detected by using the warping information derived from
synchronization. Each set of batch trajectories is synchronized by appropriate synchronization procedures, which
are automatically selected based on the nature of asynchronisms present in data. The novel approach also includes
a procedure that performs abnormality detection and batch synchronization in an iterative manner. Data from
realistic simulations of a fermentation process of the Saccharomyces cerevisiae cultivation are used to illustrate
the performance of the proposed approach in a context of multiple asynchronisms.
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Subjects:
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Batch synchronization
,
Warping information
,
Asynchronism
,
Dynamic time warping
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Relaxed greedy time warping
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of Chemometrics. (issn:
0886-9383
) (eissn:
1099-128X
)
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DOI:
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10.1002/cem.2620
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Publisher:
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Wiley
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Publisher version:
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http://dx.doi.org/10.1002/cem.2620
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Project ID:
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Spanish Ministry of Economy and Competitiveness DPI2011-28112-C04-02
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Thanks:
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This research work was partially supported by the Spanish Ministry of Economy and Competitiveness under the project DPI2011-28112-C04-02. Part of this research work was carried out during an internship of the corresponding ...[+]
This research work was partially supported by the Spanish Ministry of Economy and Competitiveness under the project DPI2011-28112-C04-02. Part of this research work was carried out during an internship of the corresponding author at Shell Global Solutions International B.V. (Amsterdam, The Netherlands). The authors also thank the anonymous referees for their comments, which greatly helped to improve the text.
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Type:
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Artículo
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