On learning techniques in engineering cybernetic systems

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Détails bibliographiques
Publié dans:	Cybernetica 10, nů 3, 19367
Auteur principal:	Sun Fu, K.
Support:	Article de revue
Langue:	Anglais
Publié:	1967.
Sujets:	Acquisition des connaissances (systèmes experts). Cybernétique. Articles de périodiques
Lien:	Dans: Cybernetica


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001	83546
008	960401s1967 xxe \|\|\| \|\|\|\| 00\| 0 eng d
041	0		\|a eng
100			\|a Sun Fu, K.
245	1	0	\|a On learning techniques in engineering cybernetic systems \|c K. Sun Fu.
260			\|c 1967.
300			\|a PP. 194-213.
650			\|a Acquisition des connaissances (systèmes experts).
650			\|a Cybernétique.
650			\|a Articles de périodiques
773	0		\|t Cybernetica \|g 10, nů 3, 19367
993			\|a Article de revue
994			\|a BC
997			\|0 83546

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// 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 true; } /** * 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, $data) { if ($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); }

* * @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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On learning techniques in engineering cybernetic systems

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