Indexing Consistency: The Input/Output Function of Thesauri.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Authors:	Reich, Phyllis, Biever, Erik J.
Format:	Recurso educativo Open Access
Language:	en
Published:	1991
Subjects:	Comparative Analysis Foreign Countries Indexing Information Retrieval Subject Index Terms Thesauri Vocabulary
Online Access:	Acceder al recurso
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Thesauri and Classifications in Non-Scientific Areas
by: Walls, Nina
Published: (1972)

Terminological Problems: Occurrence, Causes, Consequences and Solutions in Guidance, Counselling and Associated Fields.
by: Thomas, Alan R.
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Linguistic Approaches to the Construction and Use of Thesauri: A Review
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Mass Communication Thesauri and Controlled Vocabularies: An Evaluation.
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Arabic Literature: Uniterm Indexing System for Storage and Retrieval.
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by: Rees-Potter, Lorna K.
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Thesaurus Construction: An Introduction
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A Study of Indexing Consistency between Library of Congress and British Library Catalogers.
by: Tonta, Yasar
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A Comparison between Free Language and Controlled Language Indexing and Searching.
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Scope Notes for LISA Subject Headings.
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An Analysis of Search Terminology Used by Humanities Scholars: The Getty Online Searching Project Report Number 1.
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Vocabulary Development and Maintenance--Descriptors. ERIC Processing Manual, Section VIII (Part 1).
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Vocabulary Development and Maintenance--Descriptors. ERIC Processing Manual, Section VIII (Part 1).
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ASIS Thesaurus of Information Science and Librarianship. ASIS Monograph Series. Second Edition.
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Vocabulary Control in Indexing the Literature of Librarianship and Information Science.
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Multiple Thesauri in Online Library Bibliographic Systems.
by: Mandel, Carol A.
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Knowledge-Based Indexing of the Medical Literature: The Indexing Aid Project.
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Developing a New Thesaurus for Art and Architecture.
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File Maintenance of MeSH Headings in MEDLINE.
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Concept-Based Retrieval of Hypermedia Information: From Term Indexing to Semantic Hyperindexing.
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The Impact of Term-Indexing Characteristics on a Document Space.
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Designing the OPAC User Interface to Improve Access and Retrieval.
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Modern Subject Access in the Online Age.
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Modern Subject Access in the Online Age.
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A Study of the Description and Evaluation of Indexes in Biographies Written for Children.
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Thesauri in Educational Documentation; Differences in Use Between Thesauri and Classification Schemes.
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Evaluating the Impact of an Online Library Catalogue on Subject Searching Behaviour at the Catalogue and at the Shelves.
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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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