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Bibliographic Details
Main Author:	Marcelo Armentano
Format:	Artículo científico
Language:	es
Published:	Asociación Española para la Inteligencia Artificial 2006
Subjects:	Ingeniería Agentes de Interfaz Reconocimiento de planes
Online Access:	https://www.redalyc.org/articulo.oa?id=92503206
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Un enfoque bayesiano de reconocimiento de planes para agentes de interfaz Marcelo Armentano Analía Amandi Ingeniería Agentes de Interfaz Reconocimiento de planes Los agentes de interfaz son entidades de software que proveen asistencia personalizada a un usuario en el usode aplicaciones de software. Comprendiendo las tareas que el usuario ejecuta en una aplicación de software, unagente de interfaz puede ser consciente del contexto que representa el foco de atención del usuario en cadamomento. Con este propósito, el reconocimiento de planes apunta a identificar los planes y objetivos de unusuario a partir de las tareas que éste1 ejecuta. Un prerrequisito para el reconocimiento de planes es tenerconocimiento acerca de las posibles tareas que puede ejecutar el usuario y de la combinación de estas tareasque describen el comportamiento típico del usuario. El reconocimiento de planes le permitirá a un agente deinterfaz razonar acerca de lo que intenta hacer el usuario de tal forma que pueda colaborar con él. En estetrabajo proponemos un modelo probabilístico de las intenciones de un usuario que va a permitir a un agente deinterfaz realizar reconocimiento de planes en las tareas que ejecuta. El modelo propuesto es capaz de tratar conincertidumbre, múltiples planes, múltiples objetivos intercalados, tareas sobrecargadas, tareas espurias,interrupciones y capaz de adaptarse a un usuario particular de la aplicación. 2006 artículo científico 1137-3601 https://www.redalyc.org/articulo.oa?id=92503206 es http://www.redalyc.org/revista.oa?id=925 Inteligencia Artificial. Revista Iberoamericana de Inteligencia Artificial application/pdf Asociación Española para la Inteligencia Artificial Inteligencia Artificial. Revista Iberoamericana de Inteligencia Artificial (España) Num.32 Vol.10

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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