An elementary and practical grammar of the Galla or Oromo language / by Arnold W. Hodson and Craven H. Walker

• Record Nr.: UNIORUON00073663
• Autore: HODSON, Arnold W.
• Pubbl/distr/stampa: London, : Society for promoting christian Knowledge, 1922
• Descrizione fisica: 272 p. ; 20 cm
• Altri autori (Persone): WALKER, Craven H.
• Disciplina: 493.5
• Soggetti: LINGUA OROMO - Grammatica
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Supervised learning with complex-valued neural networks / / Sundaram Suresh, Narasimhan Sundararajan, and Ramasamy Savitha

• Record Nr.: UNINA9910437919903321
• Autore: Suresh Sundaram
• Pubbl/distr/stampa: Heidelberg ; ; New York, : Springer, c2013
• ISBN: 9783642294914; 364229491X
• Edizione: [1st ed. 2013.]
• Descrizione fisica: 1 online resource (XXII, 170 p.)
• Collana: Studies in computational intelligence, , 1860-949X ; ; 421
• Altri autori (Persone): SundararajanNarasimhan; SavithaRamasamy
• Disciplina: 006.31
• Soggetti: Supervised learning (Machine learning); Neural networks (Computer science)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Introduction -- Fully Complex-valued Multi Layer Perceptron Networks -- Fully Complex-valued Radial Basis Function Networks -- ; Performance Study on Complex-valued Function Approximation Problems -- Circular Complex-valued Extreme Learning Machine Classifier -- Performance Study on Real-valued Classification Problems -- Complex-valued Self-regulatory Resource Allocation Network -- Conclusions and Scope for FutureWorks (CSRAN).
• Sommario/riassunto: Recent advancements in the field of telecommunications, medical imaging and signal processing deal with signals that are inherently time varying, nonlinear and complex-valued. The time varying, nonlinear characteristics of these signals can be effectively analyzed using artificial neural networks. Furthermore, to efficiently preserve the physical characteristics of these complex-valued signals, it is important to develop complex-valued neural networks and derive their learning algorithms to represent these signals at every step of the learning process. This monograph comprises a collection of new supervised learning algorithms along with novel architectures for complex-valued neural networks. The concepts of meta-cognition equipped with a self-regulated learning have been known to be the best human learning strategy. In this monograph, the principles of meta-cognition have been introduced for complex-valued neural networks in both the batch and sequential learning modes. For applications where the computation time of the training process is critical, a fast learning complex-valued neural network called as a fully complex-valued relaxation network along with its learning algorithm has been presented. The presence of orthogonal decision boundaries helps complex-valued neural networks to outperform real-valued networks in performing classification tasks. This aspect has been highlighted. The performances of various complex-valued neural networks are evaluated on a set of benchmark and real-world function approximation and real-valued classification problems.