Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: phonemes

Sortuj według:

Ogranicz wyniki do:

Determination of Input Parameters of the Neural Network Model, Intended for Phoneme Recognition of a Voice Signal in the Systems of Distance Learning

100%

Akhmetov B. , Tereykovsky I. , Doszhanova A. , Tereykovskaya L.

International Journal of Electronics and Telecommunications

2018

tom Vol. 64, No. 4

425--432

The article is devoted to the problem of voice signals recognition means introduction in the system of distance learning. The results of the conducted research determine the prospects of neural network means of phoneme recognition. It is also shown that the main difficulties of creation of the neural network model, intended for recognition of phonemes in the system of distance learning, are connected with the uncertain duration of a phoneme-like element. Due to this reason for recognition of phonemes, it is impossible to use the most effective type of neural network model on the basis of a multilayered perceptron, at which the number of input parameters is a fixed value. To mitigate this shortcoming, the procedure, allowing to transform the non-stationary digitized voice signal to the fixed quantity of mel-cepstral coefficients, which are the basis for calculation of input parameters of the neural network model, is developed. In contrast to the known ones, the possibility of linear scaling of phoneme-like elements is available in the procedure. The number of computer experiments confirmed expediency of the fact that the use of the offered coding procedure of input parameters provides the acceptable accuracy of neural network recognition of phonemes under near-natural conditions of the distance learning system. Moreover, the prospects of further research in the field of development of neural network means of phoneme recognition of a voice signal in the system of distance learning is connected with an increase in admissible noise level. Besides, the adaptation of the offered procedure to various natural languages, as well as to other applied tasks, for instance, a problem of biometric authentication in the banking sector, is also of great interest.

On Writing and Handwriting

67%

Kučera M.

tom 1

nr 2

11-28

Writing is often considered secondary to the spoken language, as it is only coded sound-by-sound. But other scholars have demonstrated that writing is similar to ‘arithmetic’: a cognitive structuring, a shift to the meta-level (‘for the eye’). Handwriting (referred to here as the cursive writing in the sense of joined up handwriting, of ‘écriture liée’) differs from writing (in the first analysis): it has its own grammar composed of paradigmatic gestemes and tracemes and its own syntagmatic rules that connect them. In emotional terms, handwriting is designed to provide a special pleasure by its own drive (instinct, ‘Trieb’). But there is also cognitive aspect to it: the rapidity and fluidity of a cursive writing could be (in professional writing, for instance) more important (at the climax of the creative process) than it being legible for all eternity. The project of the new handwriting reform for Czech schools, abolishing the liaison between letters, is shown to be a modern and technically simplified form of calligraphy.