Comparison of improved relevance vector machines for streamflow predictions

Adnan, Rana Muhammad; Mostafa, Reham R.; Dai, Hong‐Liang; Mansouri, Ehsan; Kisi, Ozgur; Zounemat‐Kermani, Mohammad

doi:10.1002/for.3028

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…Because the prediction time is proportional to the number of support vectors when the model predicts, the computational complexity of prediction is high when the number of support vectors is large. RVM is an improved version of SVM [16]. It constructs a learning machine based on the Bayesian framework and has a good nonlinear processing ability.…”

Section: Introductionmentioning

confidence: 99%

A Quality Prediction Method Based on Tri-Training Weighted Ensemble Just-in-Time Learning–Relevance Vector Machine Model

Chen,

Zhao,

et al. 2023

Processes

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The core quality data, such as interior ballistic performance, are seriously unbalanced in the plasticizing and molding process, which makes it difficult for traditional supervised learning methods to accurately predict this kind of index. A Tri-training weighted ensemble JITL-RVM model based on an integrated confidence evaluation strategy is proposed to solve the above problem. The method is based on Tri-training semi-supervised regression architecture and uses both labeled and unlabeled data for modeling. First of all, the traditional single similarity measure method is difficult to use to evaluate the real similarity between data samples reliably and stably. This method realizes diversity enhancement and data expansion of the data set for modelling through ensemble just-in-time modelling based on three homologous and heterogeneous mixed similarity measures. Secondly, a new integrated confidence evaluation strategy is used to select the unlabeled samples, and the pseudo-labeled data, which can improve the prediction performance of the model, can be selected. To improve the prediction effect of the model, the pseudo-label value of the data is revised continuously. The integrated confidence evaluation strategy can overcome many shortcomings of the traditional confidence evaluation method based on Co-training regression (Coreg). Finally, the final quality prediction value is obtained through weighted integration fusion, which reflects the difference between different models and further improves the prediction accuracy. The experimental results of interior ballistic performance prediction of single-base gun propellant show the effectiveness and superiority of the proposed method, and it can improve the RMSE, R2, and PHR to 0.8074, 0.9644, and 93.3%, respectively.

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Section: Introductionmentioning

confidence: 99%