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result(s) for
"radial basis function neural network"
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Improved Wind Speed Prediction Using Empirical Mode Decomposition
2018
Wind power industry plays an important role in promoting the development of low-carbon economic and energy transformation in the world. However, the randomness and volatility of wind speed series restrict the healthy development of the wind power industry. Accurate wind speed prediction is the key to realize the stability of wind power integration and to guarantee the safe operation of the power system. In this paper, combined with the Empirical Mode Decomposition (EMD), the Radial Basis Function Neural Network (RBF) and the Least Square Support Vector Machine (SVM), an improved wind speed prediction model based on Empirical Mode Decomposition (EMD-RBF-LS-SVM) is proposed. The prediction result indicates that compared with the traditional prediction model (RBF, LS-SVM), the EMDRBF-LS-SVM model can weaken the random fluctuation to a certain extent and improve the short-term accuracy of wind speed prediction significantly. In a word, this research will significantly reduce the impact of wind power instability on the power grid, ensure the power grid supply and demand balance, reduce the operating costs in the grid-connected systems, and enhance the market competitiveness of the wind power.
Journal Article
Automated Breast Cancer Detection in Mammograms Using Optimized Radial Basis Function Neural Network
by
Selvaraj, Senthil Kumar
,
Borra, Bhavitha
,
Reddy, Satti Mohan
in
Accuracy
,
Classification
,
Clustering
2025
One of the most prevalent cancers that affects women is breast cancer. It ranks as the second most important factor in cancer-related deaths. The mortality rate can be decreased and survival rates raised with early detection and individualized risk assessment. The results of traditional risk prediction models, which are based on traditional risk factors, vary depending on the population. To solve these issues, this proposed system is designed. The dataset used for this analysis is the Mammogram Image Dataset. The Mammographic Image Analysis Society (MIAS) Digital Mammogram Database, which is publicly available, was used in this study. The study utilizes the MIAS in conjunction with Mini-Mammographic imaging datasets (Malignant, Benign, and Normal). The MIAS provided the 322 mammography images representing 161 individuals in the MIAS dataset. These images were taken at a resolution of 50 microns and included two mediolateral oblique (MLO) views. The system collects the digitized mammographic images as input. Then the raw data is pre-processed to remove unwanted data and noise. By using median filtering, important structural data is stored and maintains the mammogram image edges. The Fuzzy Clustering with Chicken Swarm Optimization (FC-CSO) technique will be classified into segments, and it separates suspicious regions like masses or calcifications from normal tissue. Based on labelling and annotation, the MIAS dataset determines whether the tissue is benign, malignant, or normal. The data from the labelling and annotation is given to feature extraction. The features of texture are essential for identifying the characteristics of tissue during this feature extraction process, which makes use of the Gray-Level Co-occurrence Matrix (GLCM). These characteristics are used to further classify the data. The data is then separated into testing sets and training sets. Seventy percent goes toward training, and thirty percent goes toward testing. The model is classified using Radial Basis Function Neural Networks (RBFNNs). By using radial basis functions as the activation functions in the hidden layer, this method enables the representation of complex patterns within the extracted feature space. RBFNN classifiers are then used to train the data into Normal, Benign, or Malignant categories. As a result, this system is used to accurately and early detect breast cancer. Therefore, An efficient automated mammogram breast cancer detection using Optimized Radial Basis Neural Network minimizes human error and processing time by combining FC-CSO for image segmentation, using a Gray-Level Co-occurrence Matrix for feature extraction, and using a RBFNN for data classification. Hence, this system shows better results in terms of accuracy, precision, specificity and processing time. The suggested FC-CSO–RBFNN technique outperforms current classifiers like SVM and XGBoost in terms of accuracy, precision, specificity, and computational time across mammography classification tasks.
Journal Article
A Sliding Mode Control-Based on a RBF Neural Network for Deburring Industry Robotic Systems
2016
A sliding mode control method based on radial basis function (RBF) neural network is proposed for the deburring of industry robotic systems. First, a dynamic model for deburring the robot system is established. Then, a conventional SMC scheme is introduced for the joint position tracking of robot manipulators. The RBF neural network based sliding mode control (RBFNN-SMC) has the ability to learn uncertain control actions. In the RBFNN-SMC scheme, the adaptive tuning algorithms for network parameters are derived by a Koski function algorithm to ensure the network convergences and enacts stable control. The simulations and experimental results of the deburring robot system are provided to illustrate the effectiveness of the proposed RBFNN-SMC control method. The advantages of the proposed RBFNN-SMC method are also evaluated by comparing it to existing control schemes.
Journal Article
Improved dynamic frequency-scaling approach for energy-saving-based radial basis function neural network
by
Zhang, Ruiling
,
Jia, Shijie
,
Li, Deguang
in
Algorithms
,
central processing unit utilisation prediction model
,
Central processing units
2020
As dynamic voltage and frequency scaling (DVFS) does not consider predicting system behaviour in the future stage, to improve efficiency of DVFS in fine-grained, the authors propose a central processing unit (CPU) utilisation prediction model based on radial basis function neural network. Their model first collects five typical system characteristics related to CPU utilisation during system running, then they use radial basis neural network to fit the non-linear relationship between these system characteristics and CPU utilisation in the next period. According to the predicted CPU utilisation, specific frequency scaling is performed to change frequency in real time. Finally, they evaluate their model with classical DVFS by means of different task sets. Experimental results show that their model could predict CPU utilisation in more fine-grained compared with other models, and changes frequency-scaling effect of traditional DVFS.
Journal Article
An efficient multilayer RBF neural network and its application to regression problems
by
Sekar, Vinothkumar
,
Jiang, Qinghua
,
Zhu, Lailai
in
Approximation
,
Artificial Intelligence
,
Computational Biology/Bioinformatics
2022
By combining multilayer perceptrons (MLPs) and radial basis function neural networks (RBF-NNs), an efficient multilayer RBF network is proposed in this work for regression problems. As an extension to the existing multilayer RBF network (RBF-MLP-I), the new multilayer RBF network (RBF-MLP-II) first nonlinearly transforms the multi-dimensional input data by adopting a set of multivariate basis functions. Then, linear weighted sums of these basis functions, i.e., the RBF approximations, are computed in the first hidden layer and used as the features of this layer. Subsequently, in the following hidden layers, each feature of the preceding hidden layer is fed into a univariate RBF characterized by the trainable scalar center and width, and then, RBF approximations are also applied to these basis functions. Finally, the features of the last hidden layer are linearly transformed to approximate the target output data. RBF-MLP-II reduces the number of parameters in basis functions and thus the network complexity of RBF-MLP-I. Verified by four regression problems, it is demonstrated that the proposed RBF-MLP-II exhibits the best approximation accuracy and fastest training convergence compared to conventional MLPs, RBF-NNs, and RBF-MLP-I.
Journal Article
Application of RBF neural network optimal segmentation algorithm in credit rating
by
Li, Xuetao
,
Sun, Yi
in
Algorithms
,
Artificial Intelligence
,
Computational Biology/Bioinformatics
2021
Credit rating is an important part of bank credit risk management. Since the traditional radial basis function network model is more susceptible to outliers and cannot effectively process the classification data, it is very sensitive in terms of the initial center and class width of the selected model. This paper mainly studies the application of the radial basis function neural network model combined with the optimal segmentation algorithm in the personal loan credit rating model of banks or other financial institutions. The optimal segmentation algorithm is improved and applied to the training of RBF neural network parameters in this paper to increase the center and width of the class, and the center and width of the RBF network model are further improved. Finally, the adaptive selection of the number of hidden nodes is realized by using the differential objective function of the class to adjust dynamically the structure of the radial basis function network model, which is used to establish the credit rating model. The experimental results show that the improved model has higher precision when dealing with non-numeric data, and the robustness of the improved model has been improved.
Journal Article
Stock prediction using deep learning
2017
Stock market is considered chaotic, complex, volatile and dynamic. Undoubtedly, its prediction is one of the most challenging tasks in time series forecasting. Moreover existing Artificial Neural Network (ANN) approaches fail to provide encouraging results. Meanwhile advances in machine learning have presented favourable results for speech recognition, image classification and language processing. Methods applied in digital signal processing can be applied to stock data as both are time series. Similarly, learning outcome of this paper can be applied to speech time series data. Deep learning for stock prediction has been introduced in this paper and its performance is evaluated on Google stock price multimedia data (chart) from NASDAQ. The objective of this paper is to demonstrate that deep learning can improve stock market forecasting accuracy. For this, (2D)
2
PCA + Deep Neural Network (DNN) method is compared with state of the art method 2-Directional 2-Dimensional Principal Component Analysis (2D)
2
PCA + Radial Basis Function Neural Network (RBFNN). It is found that the proposed method is performing better than the existing method RBFNN with an improved accuracy of 4.8% for Hit Rate with a window size of 20. Also the results of the proposed model are compared with the Recurrent Neural Network (RNN) and it is found that the accuracy for Hit Rate is improved by 15.6%. The correlation coefficient between the actual and predicted return for DNN is 17.1% more than RBFNN and it is 43.4% better than RNN.
Journal Article
Forecasting road traffic accident using deep artificial neural network approach in case of Oromia Special Zone
by
Kaliyaperumal, Karthikeyan
,
Velmurugan, L.
,
Raja, Kannaiya
in
Accident data
,
Accident prediction
,
Accuracy
2023
Millions of people are dying, and billions of properties are damaged by road traffic accidents each year worldwide. In the case of our country Ethiopia, the effect of traffic accidents is even more by causing injuries, death, and property damage. Forecasting road traffic accident and predicting the severity of road traffic accident contributes a role indirectly in reducing road traffic accidents. This study deals with forecasting the number of accident and prediction of the severity of an accident in the Oromia Special Zone using deep artificial neural network models. Around 6170 road traffic accidents data are collected from Oromia Police Commission Excel data and Oromia Special Zone Traffic Police Department; the dataset consists of accidents in the Special Zone of Oromia Districts (Woredas) from 2005 to 2012 with 15 accidents attributes. 5928 or (80%) of the dataset was used for the training model, and 1482 or (20%) of the dataset was used for the testing model. This study proposed six different neural network architectures such as backpropagation neural network (BPNN), feedforward neural network (FFNN), multilayer perceptron neural network (MLPNN), recurrent neural networks (RNN), radial basis function neural network (RBFNN) and long short-term memory (LSTM) models for accident severity prediction and the LSTM model for a time serious forecasting of number accidents within specified years. The models will take input data, classify accidents, and predict the severity of an accident. Accident predictor GUI has been created using Python Tkinter library for easy accident severity prediction. According to the model performance results, RNN model showed the best prediction accuracy of 97.18%, whereas MLP
,
LTSM, RBFNN, FFNN, and BPNN models showed the accuracy of 97.13%, 91.00%, 87.00%, 80.56%, and 77.26%, respectively. LTSM model forecasted accident for three years which is 3555 where the actual accident number is 3561. The prediction and forecast result obtained from the model will be helpful in planning and management of road traffic accidents.
Journal Article
Towards an Intelligent Intrusion Detection System to Detect Malicious Activities in Cloud Computing
by
Attou, Hanaa
,
Alabdultif, Abdulatif
,
Almusallam, Naif
in
Algorithms
,
anomaly detection
,
Cloud computing
2023
Several sectors have embraced Cloud Computing (CC) due to its inherent characteristics, such as scalability and flexibility. However, despite these advantages, security concerns remain a significant challenge for cloud providers. CC introduces new vulnerabilities, including unauthorized access, data breaches, and insider threats. The shared infrastructure of cloud systems makes them attractive targets for attackers. The integration of robust security mechanisms becomes crucial to address these security challenges. One such mechanism is an Intrusion Detection System (IDS), which is fundamental in safeguarding networks and cloud environments. An IDS monitors network traffic and system activities. In recent years, researchers have explored the use of Machine Learning (ML) and Deep Learning (DL) approaches to enhance the performance of IDS. ML and DL algorithms have demonstrated their ability to analyze large volumes of data and make accurate predictions. By leveraging these techniques, IDSs can adapt to evolving threats, detect previous attacks, and reduce false positives. This article proposes a novel IDS model based on DL algorithms like the Radial Basis Function Neural Network (RBFNN) and Random Forest (RF). The RF classifier is used for feature selection, and the RBFNN algorithm is used to detect intrusion in CC environments. Moreover, the datasets Bot-IoT and NSL-KDD have been utilized to validate our suggested approach. To evaluate the impact of our approach on an imbalanced dataset, we relied on Matthew’s Correlation Coefficient (MCC) as a normalized measure. Our method achieves accuracy (ACC) higher than 92% using the minimum features, and we managed to increase the MCC from 28% to 93%. The contributions of this study are twofold. Firstly, it presents a novel IDS model that leverages DL algorithms, demonstrating an improved ACC higher than 92% using minimal features and a substantial increase in MCC from 28% to 93%. Secondly, it addresses the security challenges specific to CC environments, offering a promising solution to enhance security in cloud systems. By integrating the proposed IDS model into cloud environments, cloud providers can benefit from enhanced security measures, effectively mitigating unauthorized access and potential data breaches. The utilization of DL algorithms, RBFNN, and RF has shown remarkable potential in detecting intrusions and strengthening the overall security posture of CC.
Journal Article
Neural network models for software development effort estimation: a comparative study
by
Azzeh, Mohammad
,
Capretz, Luiz Fernando
,
Ho, Danny
in
Artificial Intelligence
,
Bids
,
Comparative studies
2016
Software development effort estimation (SDEE) is one of the main tasks in software project management. It is crucial for a project manager to efficiently predict the effort or cost of a software project in a bidding process, since overestimation will lead to bidding loss and underestimation will cause the company to lose money. Several SDEE models exist; machine learning models, especially neural network models, are among the most prominent in the field. In this study, four different neural network models—multilayer perceptron, general regression neural network, radial basis function neural network, and cascade correlation neural network—are compared with each other based on: (1) predictive accuracy centred on the mean absolute error criterion, (2) whether such a model tends to overestimate or underestimate, and (3) how each model classifies the importance of its inputs. Industrial datasets from the International Software Benchmarking Standards Group (ISBSG) are used to train and validate the four models. The main ISBSG dataset was filtered and then divided into five datasets based on the productivity value of each project. Results show that the four models tend to overestimate in 80 % of the datasets, and the significance of the model inputs varies based on the selected model. Furthermore, the cascade correlation neural network outperforms the other three models in the majority of the datasets constructed on the mean absolute residual criterion.
Journal Article