Experiments in Automatic Library of Congress Classification.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Larson, Ray R.
Format:	Recurso educativo Open Access
Language:	en
Published:	1992
Subjects:	Academic Libraries Bibliographic Databases Bibliographic Records Classification Cluster Grouping Data Processing Higher Education Information Retrieval Library of Congress Classification Mathematical Formulas Subject Index Terms
Online Access:	Acceder al recurso
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Published: (1996)

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Published: (1991)

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Published: (1990)

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Published: (1973)

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Published: (1993)

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Published: (1983)

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Published: (1972)

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Published: (1995)

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Published: (1972)

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Published: (1974)

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Published: (1990)

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Published: (1990)

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Published: (1999)

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by: Scott, Mona L.
Published: (1999)

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Published: (1999)

IFLA General Conference, 1989. Division of Bibliographic Control. Open Forum of the Division; Section on Cataloguing; Section on Bibliography; Section on Classification and Indexing. Booklet 40.
Published: (1989)

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Published: (1993)

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Published: (1983)

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Published: (1981)

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Published: (1998)

Guide to Sources: Education. Revised.
by: Goodwin, Bryan
Published: (1987)

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by: Rodriguez, Ketty
Published: (1988)

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by: Mandel, Carol A.
Published: (1986)

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by: Sapp, Gregg
Published: (1986)

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by: Hood, William, et al.
Published: (1994)

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by: Haynes, Kathleen J. M.
Published: (1993)

Treatment of Persian Materials in the National Union Catalog.
by: Khosh-khui, Abolghasem Z.
Published: (1976)

SABRE--A Novel Software Tool for Bibliographic Post-Processing.
by: Burge, Cecil D.
Published: (1989)

Online Catalogs: Enhancements and Developments.
by: O'Brien, Ann
Published: (1994)

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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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