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Détails bibliographiques
Auteur principal:	Sergio Daniel Cano-Ortiz
Format:	Artículo científico
Langue:	es
Publié:	Centro de Información y Gestión Tecnológica de Santiago de Cuba 2010
Sujets:	Estudios Ambientales redes neuronales reconocimiento de patrones Atributos acústicos del llanto clasificación del llanto infantil MFCC (Mel Frequency Cepstral Coefficients)
Accès en ligne:	https://www.redalyc.org/articulo.oa?id=181317848008
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Table des matières:

EL ENFOQUE MULTILATERAL PARA EL PROBLEMA DE LA CLASIFICACIÓN DEL LLANTO INFANTIL CON FINES DIAGNÓSTICOS Sergio Daniel Cano-Ortiz Daniel Isac Escobedo-Beceiro Carlos Alberto Reyes-García Luis Regueiferos-Prego Leonardo Capdevila-Bravo Estudios Ambientales redes neuronales reconocimiento de patrones Atributos acústicos del llanto clasificación del llanto infantil MFCC (Mel Frequency Cepstral Coefficients) A pesar de no contarse en la actualidad con rutinas médicas establecidas que apoyen al diagnóstico neonatal, recientemente se han obtenido avances importantes en ese sentido a partir de la incorporación, además del enfoque clásico tradicional, de nuevos enfoques de clasificación del llanto infantil, que ya muestran sus potencialidades diagnósticas. El presente ensayo aborda la emergencia de estos nuevos enfoques de clasificación, así como sus potencialidades para el diagnóstico neonatal, lo cual se evidencia a través de una implementación experimental de un clasificador híbrido de llanto, orientado al diagnóstico neonatal. 2010 artículo científico 1027-2887 https://www.redalyc.org/articulo.oa?id=181317848008 es http://www.redalyc.org/revista.oa?id=1813 Ciencia en su PC application/pdf Centro de Información y Gestión Tecnológica de Santiago de Cuba Ciencia en su PC (Cuba) Num.3

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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