Predicting Sun Spots Using A Layered Perceptron Neural Network  

Oleh:

Park, Y. R. ; Murray, T. J. ; Chen, Chung

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: IEEE Transactions on Neural Networks vol. 7 no. 2 (1996), page 501-505.
Topik: neural network; sun spots; layered perceptron; neural network

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: II36.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Interest in neural networks has expanded rapidly in recent years. Selecting the best structure for a given task, however, remains a critical issue in neural - network design. Although the performance of a network clearly depends on its structure, the procedure for selecting the optimal structure has not been thoroughly investigated, it is well known that the number of hidden units must be sufficient to discriminate each observation correctly. A large number of hidden units requires extensive computational time for training and often times prediction results may not be as accurate as expected. This study attempts to apply the principal component analysis (PCA) to determine the structure of a multilayered neural network for time series forecasting problems. The main focus is to determine the number of hidden units for a multilayered feedforward network. One empirical experiment with sunspot data is used to demonstrate the usefulness of the proposed approach.

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