Mining Multivariate Heterogeneous Time Series Models with Computational Intelligence Techniques

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ConferenceProceedings of the IASTED International Joint Conference on Artifical Intelligence and Applications, September 8-10, 2003., Benalmadena, Spain
Subjectneuro-fuzzy-genetic architectures; parallel data mining; signal processing; neural networks; genetic algorithms; forecasting and prediction; exploration de données en parallèle; traitement des signaux; réseaux neuronaux; algorithmes génétiques; prévision et prédiction
AbstractThis paper presents experimental results of a computational intelligence algorithm for model discovery and data mining in heterogeneous, multivariate time series, possibly with missing values. It uses a hybrid neuro-fuzzy network with two different types of neurons trained with a non-traditional procedure. Models describing the multivariate time dependencies represent dependency patterns within the signals and are encoded as binary strings representing neural networks (evolved using genetic algorithms). The present paper studies its properties from an experimental point of view focussing on: i) the influence of missing values, ii) the factors controlling the model search process, and iii) the effectiveness of the time series prediction results. Results confirm that the algorithm i) possesses high tolerance to missing data, ii) has an error distribution skewed towards lower error values, iii) is capable of learning good models within large signal sets.
Publication date
AffiliationNRC Institute for Information Technology; National Research Council Canada
Peer reviewedNo
NRC number46513
NPARC number5764242
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Record identifier945c1f15-4cf8-4e2d-b88f-09e4433a1168
Record created2009-03-29
Record modified2016-05-09
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