Continuity in an Environment of Perceptual Discontinuity: The Significance of the Algorithm in Exploitative Power.

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Author:	Vigil, Peter J.
Format:	Recurso educativo Open Access
Language:	en
Published:	1989
Subjects:	Algorithms Expert Systems Heuristics Information Retrieval Learning Processes Library Services Online Systems Optical Data Disks Problem Solving Programing Search Strategies User Needs (Information)
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Expert Systems, Expertise, and the Library and Information Professions.
by: Anderson, P. F.
Published: (1988)

Information Seeking in Full-Text End-User-Oriented Search Systems: The Roles of Domain and Search Expertise.
by: Marchionini, Gary, et al.
Published: (1993)

Problem Solving, Creative Librarianship, and Search Behavior.
by: Nahl-Jakobovits, Diane, et al.
Published: (1988)

Empty Handed? A Material Availability Study and Transaction Log Analysis Verification.
by: Ciliberti, Anne, et al.
Published: (1998)

150 Years of Medical Information Research.
by: Siegel, Elliot R.
Published: (1987)

Knowledge Representation: Subject Analysis.
by: Micco, Mary, et al.
Published: (1987)

Information Seeking as Problem-Solving Using a Qualitative Approach To Uncover the Novice Learners' Information-Seeking Processes in a Perseus Hypertext System.
by: Yang, Shu Ching
Published: (1997)

Enhancing CD-ROM Searches with Online Updates: An Examination of End-User Needs, Strategies, and Problems.
by: Charles, Susan K., et al.
Published: (1990)

Electronic and Optical Sources of Information for the Humanities: A Survey of Library Users, Products and Projects in Italy.
by: Paci, Augusta Maria, et al.
Published: (1990)

Localizing CD-ROM Databases in the College Library: Eliminating the Negative and Accentuating the Positive.
by: Everett, David
Published: (1994)

In Praise of Mr. S. Platter and His Marvelous, Magnificent CD ROM Laser Disc Index for ERIC and PSYCHLIT.
by: Huffman, Robert F.
Published: (1987)

The Process of Searching Online Bibliographic Databases: A Review of Research.
by: Fenichel, Carol Hansen
Published: (1980)

Experiencing CD-ROM ERIC.
by: Olson, Lucie
Published: (1987)

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

Web Search Engines: Key To Locating Information for All Users or Only the Cognoscenti?
by: Tomaiuolo, Nicholas G., et al.
Published: (1996)

WWW--Wealth, Weariness or Waste. Controlled Vocabulary and Thesauri in Support of Online Information Access.
by: Batty, David
Published: (1998)

Interface Design Concepts in the Development of ELSA, an Intelligent Electronic Library Search Assistant.
by: Denning, Rebecca, et al.
Published: (1994)

Networked Electronic Information Systems at the University of Houston Libraries: The IRIS Project and Beyond.
by: Gunning, Kathleen, et al.
Published: (1993)

"If It's Not Here, I Can't Be Bothered...": Limiting Searches to In-House Journals.
by: Davidoff, Donna J., et al.
Published: (1991)

Zero Result Searches. . . How to Minimize Them.
by: Atkinson, Steve
Published: (1986)

Success, a Structured Search Strategy: Rationale, Principles, and Implications.
by: Zins, Chaim
Published: (2000)

Time-Tested ERIC Bibliographic Instruction (BI): Give Them a Pole and Teach Them To Fish (Fiche).
by: Leverence, Mari Ellen
Published: (1994)

Interfaces for End-User Information Seeking.
by: Marchionini, Gary
Published: (1992)

How Much Does the End User Need an Intermediary?
by: Dunning, Peter
Published: (1989)

Is There a Chance for a Standardised User Interface?
by: Fletcher, Liz
Published: (1993)

Evaluation of Online Catalogues: Eliciting Information from the User.
by: Hancock-Beaulieu, Micheline, et al.
Published: (1991)

LISA on CD-ROM: An Evaluation.
by: Hartley, R. J.
Published: (1989)

Requirements for a User-Friendly OPAC.
by: Fokker, Dirk W.
Published: (1989)

Spiders and Worms and Crawlers, Oh My: Searching on the World Wide Web.
by: Eagan, Ann, et al.
Published: (1996)

Bibliographic Database Searching by Graduate Students in Language and Literature: Search Strategies, System Interfaces, and Relevance Judgments.
by: Shaw, Deborah
Published: (1995)

Online Searching and CD-ROM in British Schools.
by: Butterworth, Margaret
Published: (1992)

Outlines of the Emerging Paradigm in Cataloguing.
by: Davies, Roy
Published: (1987)

Making a Library Catalog Adaptive.
by: Buckland, Michael K., et al.
Published: (1992)

Multiple Search Sessions by End-Users of Online Catalogs and CD-ROM Databases.
by: Spink, Amanda, et al.
Published: (1995)

Searching on CD-ROM in an Academic Environment.
by: Sylvia, Margaret, et al.
Published: (1991)

Electronic Information: Options for Access.
by: Pesch, Oliver
Published: (1994)

Online Searching: Still an Imprecise Art.
by: Saracevic, Tefko, et al.
Published: (1991)

Users, End-Users, and End-User Searchers of Online Information: A Historical Overview.
by: Farber, Miriam, et al.
Published: (2002)

Toward Contextual Sensitivity: Approaches to End User Instruction in the USA.
by: Huston, Mary M.
Published: (1989)

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
VUFIND_SESSION	"1829a5654ae238384aa3b141f63b8a88"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789148881.8335 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "1829a5654ae238384aa3b141f63b8a88" ]`]
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	"VUFIND_SESSION=1829a5654ae238384aa3b141f63b8a88; language=en; ui=standard"
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	"50678"
REDIRECT_URL	"/Record/eric_ED325117/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_ED325117/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789148881.8277
REQUEST_TIME	1789148881

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"1829a5654ae238384aa3b141f63b8a88"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789148881.8335 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "1829a5654ae238384aa3b141f63b8a88" ]`]
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	"VUFIND_SESSION=1829a5654ae238384aa3b141f63b8a88; language=en; ui=standard"
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	"50678"
REDIRECT_URL	"/Record/eric_ED325117/Similar"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_ED325117/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789148881.8277
REQUEST_TIME	1789148881

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Similar Items

Environment & details:

Environment & details: