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Bibliographic Details
Main Author:	Manuel Enrique Puebla Martínez
Format:	Artículo científico
Language:	es
Published:	Universidad de las Ciencias Informáticas 2021
Subjects:	Computación OWL2 OWLAPI Ontologías geográficas grandes Representación del conocimiento Razonamiento sobre grandes ontologías
Online Access:	https://www.redalyc.org/articulo.oa?id=378369292002 https://www.redalyc.org/journal/3783/378369292002/ https://www.redalyc.org/journal/3783/378369292002/html/ https://www.redalyc.org/journal/3783/378369292002/378369292002.epub https://www.redalyc.org/journal/3783/378369292002/movil
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Administrando Ontologías Grandes y Altamente Expresivas Mediante OWLAPI Manuel Enrique Puebla Martínez Alfredo Simón Cuevas José Manuel Perea Ortega Yanet Espinal Martín Computación OWL2 OWLAPI Ontologías geográficas grandes Representación del conocimiento Razonamiento sobre grandes ontologías La mayoría de las herramientas de código abierto para administrar y razonar sobre ontologías grandes requieren cargar previamente toda la ontología en la memoria principal para realizar operaciones de inferencia. Esto es un inconveniente cuando los recursos de hardware son limitados y se requiere administrar ontologías geográficas con millones de datos (instancias), debido a la alta complejidad espacial y temporal de los algoritmos utilizados por los razonadores basados en memoria. Este artículo presenta una extensión de OWLAPI para administrar y razonar sobre grandes ontologías geográficas en cualquier perfil de OWL2. La contribución principal es la reducción del uso de la memoria principal por parte de OWLAPI, pues solo una parte de la ontología es cargada en memoria principal y no todo el archivo OWL. Dos grandes geo-ontologías de diferentes áreas geográficas se gestionaron utilizando la solución propuesta con fines de demostración. Los resultados obtenidos demuestran la viabilidad de la propuesta para administrar grandes ontologías geográficas en OWL2 mediante el uso de OWLAPI y recursos de hardware limitados. 2021 artículo científico 1994-1536 https://www.redalyc.org/articulo.oa?id=378369292002 https://www.redalyc.org/journal/3783/378369292002/ https://www.redalyc.org/journal/3783/378369292002/html/ https://www.redalyc.org/journal/3783/378369292002/378369292002.epub https://www.redalyc.org/journal/3783/378369292002/movil es http://www.redalyc.org/revista.oa?id=3783 Revista Cubana de Ciencias Informáticas application/pdf Universidad de las Ciencias Informáticas Revista Cubana de Ciencias Informáticas (Cuba) Num.3 Vol.15

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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 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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