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Inferring causal relations from multivariate time series : a fast method for large-scale gene expression data [PDF]

open access: yes, 2009
Various multivariate time series analysis techniques have been developed with the aim of inferring causal relations between time series. Previously, these techniques have proved their effectiveness on economic and neurophysiological data, which normally ...
Yuan, Yinyin   +3 more
core   +1 more source

Detecting anomalies in multivariate time series from automotive systems [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In the automotive industry test drives are conducted during the development of new vehicle models or as a part of quality assurance for series vehicles ...
Theissler, Andreas
core   +6 more sources

Outlier detection in multivariate time series via projection pursuit [PDF]

open access: yes, 2004
This article uses Projection Pursuit methods to develop a procedure for detecting outliers in a multivariate time series. We show that testing for outliers in some projection directions could be more powerful than testing the multivariate series directly.
Peña, Daniel   +2 more
core   +1 more source

An Analysis of Temporal Features in Multivariate Time Series to Forecast Network Events

open access: yesApplied Sciences, 2023
Analyzing network traffic over time is crucial for understanding the changes in network activity. To properly examine network traffic patterns over time, multiple network events in each timestamp need to be converted to time series data.
Soo-Yeon Ji   +2 more
doaj   +1 more source

Matrix factorization for multivariate time series analysis

open access: yesElectronic Journal of Statistics, 2019
Matrix factorization is a powerful data analysis tool. It has been used in multivariate time series analysis, leading to the decomposition of the series in a small set of latent factors. However, little is known on the statistical performances of matrix factorization for time series.
Alquier, Pierre, Marie, Nicolas
openaire   +4 more sources

Learning short multivariate time series models through evolutionary and sparse matrix computation [PDF]

open access: yes, 2005
Multivariate time series (MTS) data are widely available in different fields including medicine, finance, bioinformatics, science and engineering. Modelling MTS data accurately is important for many decision making activities.
Liu, X, Kok, J, Swift, S
core   +1 more source

Ethanol Prices and Agricultural Commodities: An Investigation of Their Relationship

open access: yesMathematics, 2019
Brazil is an important player when it comes to biofuel and agricultural production. The knowledge of the price relationship between these markets has increasing importance. This paper adopts several tools, namely the Bai−Perron test of breakpoints,
Sergio Adriani David   +2 more
doaj   +1 more source

Classification and Characterization of Vegetation Dynamics in Northeastern Mexico from 25-Year EVI Time Series

open access: yesRemote Sensing
Vegetation indices are used to analyze vegetation dynamics and primary productivity. However, most studies rely on short time series and peak or integral metrics, which limit the understanding of long-term vegetation dynamics in heterogeneous areas. This
Alejandra Nahiely Espinoza-Coronado   +5 more
doaj   +1 more source

Application of Multivariate Time Series Cluster Analysis to Regional Socioeconomic Indicators of Municipalities

open access: yesReal Estate Management and Valuation, 2021
The socio-economic development of municipalities is defined by a set of indicators in a period of interest and can be analyzed as a multivariate time series. It is important to know which municipalities have similar socio-economic development trends when
Gružauskas Valentas   +3 more
doaj   +1 more source

Dynamic staged trees for discrete multivariate time series : forecasting, model selection and causal analysis [PDF]

open access: yes, 2010
A new tree-based graphical model — the dynamic staged tree — is used to model discrete-valued discrete-time multivariate processes which are hypothesised to exhibit certain symmetries concerning how situations might unfold.
Smith, JQ   +5 more
core   +1 more source

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