In this article, we explore the effectiveness of different numerical techniques in the training of backpropaqgation neural networks (BPNN) which are fed with wavelet-transformed data to capture useful information on various time scales. The purpose is to predict S&P500 future prices using BPNN trained with conjugate gradient (Fletcher-Reeves update, Polak-Ribiére update, Powell-Beale restart), ...

Budgerigars learn their vocalizations by reference to auditory information and they retain the ability to learn new vocalizations throughout life. Auditory feedback of these vocalizations was manipulated in three experiments by training birds to produce vocalizations while wearing small earphones. Experiments 1 and 2 examined the effect of background noise level (Lombard effect) and the effect ...

A 67-year-old patient was admitted to the hospital to perform an esophagogastrectomy because a lesion at the lower esophagus was strongly suspicious for cancer. Her medical history and her family history were negative for bleeding tendency or thrombosis. Her activated partial thromboplastin time (aPTT) was prolonged (44 s) whereas her prothrombin time (PT) was normal (11 s) presurgery. Mixing o...

Abstract In this paper, we study and prove the non-asymptotic superlinear convergence rate of Broyden class quasi-Newton algorithms which includes Davidon–Fletcher–Powell (DFP) method Broyden–Fletcher–Goldfarb–Shanno (BFGS) method. The asymptotic these methods has been extensively studied in literature, but their explicit finite–time local is not fully investigated. provide a (non-asymptotic) a...

Eidelberg, E., Baxter, C. F., Roberts, E. & Saldias, C. A. (1960) in Inhibition in the Nervous System and y-Aminobutyric Acid (Roberts, E., Baxter, C. F., Van Harreveld, A., Wiersma, C. A. G., Adey, W. R. & Killam, K. F., eds.), pp. 562-578, Pergamon Press, New York Fletcher, A. & Fowler, L. J. (1980) Biochem. Pharmacol. 29,145& 1459 Fletcher, A. & Fowler, L. J. (1982) J. Neurochem. 38, 1022-10...

Distantasca Dworakowska originally established as a genus but more recently has been treated as a subgenus of Empoasca Walsh. Here we reinstate Distantasca as a valid genus and provide a revised diagnosis. New combinations created are Distantasca atika (Dworakowska), n. comb., Distantasca barawa (Dworakowska), n. comb., Distantasca bulbosa (Dworakowska), n. comb., Distantasca latava (Dworakowsk...