Indexing Depth and Retrieval Effectiveness

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Author:	Seely, Barbara J.
Format:	Recurso educativo Open Access
Language:	en
Published:	1972
Subjects:	Indexing Information Processing Information Retrieval Relevance (Information Retrieval)
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

The Efficiency of MEDLARS Titles for Retrieval
by: Miller, William L.
Published: (1971)

A Retrieval Comparison of Six Published Indexes in the Field of Library and Information Science
by: Keen, E. Michael
Published: (1976)

Evaluation of Machine-Aided Indexing
by: Klingbiel, Paul H., et al.
Published: (1976)

Computerized Information Storage and Retrieval Systems.
by: Azubuike, Abraham A., et al.
Published: (1988)

Postcoordinate Retrieval: A Comparison of Two Indexing Languages.
by: Schabas, Ann H.
Published: (1982)

The Cranfield II Relevance Assessments: A Critical Evaluation
by: Harter, Stephen P.
Published: (1971)

To Index or Not To Index.
by: Veenema, Fred
Published: (1996)

Examination of the Validity of the Conclusions Arrived at in the Aslib Cranfield Research Project.
by: te Nuyl, Th. W.
Published: (1968)

Automatic Indexing in the Science and Social Science Citation Index CD-ROM.
by: Cawkell, A. E.
Published: (1989)

Written Representation of Topics and the Production of Query Terms
by: Tagliacozzo, Renata, et al.
Published: (1971)

Indexers' Reactions to PRECIS.
by: Bakewell, K. G. B.
Published: (1979)

Some Unexplained Aspects of the Cranfield Tests of Indexing Performance Factors
by: Swanson, Don R.
Published: (1971)

Vocabulary Control for Information Retrieval.
by: Lancaster, F. W.
Published: (1972)

Augmenting Subject Descriptions for Books in Online Catalogs.
by: Settel, Barbara, et al.
Published: (1982)

Data Definition and the Decline of Cataloging Quality.
by: Burger, Robert H.
Published: (1983)

Some Fundamental Concepts of Information Retrieval.
by: Wilson, Patrick
Published: (1978)

Use of Classification in Online Retrieval.
by: Svenonius, Elaine
Published: (1983)

Efficiency of PRECIS Role Operators.
by: Mahapatra, M., et al.
Published: (1984)

Subject Indexing and Citation Indexing--Part I: Clustering Structure in the Cystic Fibrosis Document Collection [and] Part II: An Evaluation and Comparison.
by: Shaw, W. M., Jr.
Published: (1990)

File Construction Using FAMULUS.
by: Pao, Miranda Lee
Published: (1982)

Retrieval Effectiveness of Enhanced Bibliographic Records.
by: Dillon, Martin, et al.
Published: (1990)

Locating Sources in Humanities Scholarship: The Efficacy of Following Bibliographic References.
by: Green, Rebecca
Published: (2000)

Subject Relationships between Cited and Citing Documents in Library and Information Science.
by: Nisonger, Thomas E., et al.
Published: (1992)

Information Storage and Retrieval. Reports on Analysis, Search, and Iterative Retrieval.
by: Salton, Gerard
Published: (1968)

The Case for Coexistence: Hardcopy and Online Searching.
by: Maciuszko, Kathleen L.
Published: (1989)

Research Toward Enhancing Retrieval Effectiveness.
by: Schipma, Peter B.
Published: (1976)

Books Are for Use. Final Report of the Subject Access Project to the Council on Library Resources.
by: Atherton, Pauline
Published: (1978)

Automatic Classification in Information Retrieval.
by: van Rijsbergen, C. J.
Published: (1978)

Comparing Computerized and Paper Based Information Retrieval Systems in Library Public Services: A Meta-Analysis.
by: Trahan, Eric
Published: (1990)

System Features for Subject Access in the Online Catalog.
by: Lawrence, Gary S.
Published: (1985)

Literature in MEDLINE. . . A Bibliographic Anomaly?
by: Robbins, Simone B.
Published: (1985)

Characteristics of a Literature as Predictors of Relatedness Between Cited and Citing Works.
by: Bonzi, Susan
Published: (1982)

Subject Access in Online Catalogs: A Design Model.
by: Bates, Marcia J.
Published: (1986)

Fiction Retrieval: Experimental Design and Evaluation of a Search System Based on Users' Value Criteria (Part 1).
by: Pejterson, Annelise Mark, et al.
Published: (1983)

Application of the Variety-Generator Approach to Searches of Personal Names in Bibliographic Data Bases - Part 2. Optimization of Key-Sets, and Evaluation of Their Retrieval Efficiency
by: Fokker, Dirk W., et al.
Published: (1974)

A Perspective on the Measurement of Retrieval Effectiveness.
by: Cooper, William S.
Published: (1978)

Citation Indexing History and Applications
by: Miller, Elizabeth, et al.
Published: (1972)

Optimum Degree of User Participation in SDI Profile Generation.
by: Evans, L.
Published: (1973)

Retrieval Results of Unassisted Searches of Two General Periodical Indexes.
by: Blackburn, Jennifer O.
Published: (1993)

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'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"06a2f16f07712ebc7c3ae62f33c4f818"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789147882.0976 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "06a2f16f07712ebc7c3ae62f33c4f818" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1782}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"ui=standard; VUFIND_SESSION=06a2f16f07712ebc7c3ae62f33c4f818; language=en"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.48"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"25137"
REDIRECT_URL	"/Record/eric_EJ060806/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ060806/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789147882.0884
REQUEST_TIME	1789147882

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"06a2f16f07712ebc7c3ae62f33c4f818"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789147882.0976 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "06a2f16f07712ebc7c3ae62f33c4f818" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1782}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"ui=standard; VUFIND_SESSION=06a2f16f07712ebc7c3ae62f33c4f818; language=en"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.48"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"25137"
REDIRECT_URL	"/Record/eric_EJ060806/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ060806/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789147882.0884
REQUEST_TIME	1789147882

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Similar Items

Environment & details:

Environment & details: