Unicorn Indexing: A Behind The Scenes Look SCUUG 2002 Natalie Palermo Louisiana State University.
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Transcript of Unicorn Indexing: A Behind The Scenes Look SCUUG 2002 Natalie Palermo Louisiana State University.
![Page 1: Unicorn Indexing: A Behind The Scenes Look SCUUG 2002 Natalie Palermo Louisiana State University.](https://reader035.fdocuments.us/reader035/viewer/2022062714/56649d0c5503460f949e095b/html5/thumbnails/1.jpg)
Unicorn Indexing:A Behind The Scenes Look
SCUUG 2002
Natalie Palermo
Louisiana State University
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What’s Behind the Scenes IndexesVariationsHypertext
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IndexesBrowseKeyword
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Delivered Browse IndexesAuthorMESHPeriodical TitleSeriesSubject (rotated)Title
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Browse IndexesRotated: multiple postings of a phrase
with each subfield beginning the phrase NEW ORLEANS LA HISTORY 18TH CENTURY HISTORY 18TH CENTURY NEW ORLEANS LA 18TH CENTURY NEW ORLEANS LA HISTORY
Changes require Rebuild Headings and thus Rebuild Text
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LSU Browse Index ChangesCreate new browse index,
LOCAL_NUM, for 035 fieldAdd to title browse index:
240, 246, 524Add to subject browse index:
655
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Keyword Index Policy TypesSearchable Keyword IndexNon-searchable Keyword Index Internal Synonym Keyword IndexSynonym List Keyword Index
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Searchable KeywordSingle entries from bibliographic recordMapped to internal tags used by BRSFor example, LSU added the following:
027, 035, 043, 088, 210, 243, 247, 351, 510, 524, 538, 541, 586, 653, 655, 752, 760, 773, 856
AUTI for name/title entries Posted 700|t, 710|t, and 711|t to AUTI
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Non-searchable KeywordUsed for sorting search results in the
library catalogDoes not represent an entry or group of
entries for searching
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Internal Synonym KeywordDefines which entries are searched
when a given type of search is performed
Creation, modification, and removal require changes to BRS equivalent field definitions
Searches qualified by internal synonyms are more efficient
Changes require Rebuild Text
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Delivered Internal Synonyms
Index Synonym MARC Entries
Author AU 100, 110, 111, 700, 710, 711
Series SE 400, 410, 411, 440, 490, 800, 810, 811, 830, 840
Subject SU 600, 610, 611, 630, 650, 651, 690, 691
Title TI 130, 245, 440, 730, 740
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LSU Additions to Internal Synonym Keyword IndexesAdd to title keyword index:
240, 246, 440, 490, 505, 524, 830, AUTIAdd to author keyword index:
505
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Synonym List KeywordDefines which entries are searched
when a given type of search is performed
Definable without requiring modifications to BRS configuration
Less efficient searchGENERAL is an example of a synonym
list keyword index
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VariationsEach catalog format entry ID has its
own browse and keyword variationsVariations can be in addition to others
or supersede othersVariations can be based on:
indicators subfields leading articles
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Serial 246 Browse 1
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Serial 246 Browse 2
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Serial 780 Browse 1
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Serial 780 Browse 2
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Serial 246 Keyword 1
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Serial 246 Keyword 2
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Serial 780 Keyword 1
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Serial 780 Keyword 2
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HypertextSubfields used in hypertext searchHypertext search types:
Partial Exact Keyword
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Hypertext Search SubfieldsFor each entry ID, you can determine
which subfields are included in a hypertext search
To improve the likelihood of finding matching records, do not include subfields that narrow the search
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Serial 246 Hypertext Subfields
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Serial 780 Hypertext Subfields
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Hypertext Configuration In WorkFlows, go to global configuration
to set the hypertext search type In iLink, set the hypertext search type in
the following environment variable: LIKESEARCHTYPE
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Partial Hypertext SearchPartial lookup in the browse index
specified in first browse variationBuilds an "OR" search string of the
matched heading keysReturns the results identified to the
point of the search string character limit
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Partial Hypertext Search If the search string limit is met, you will
get one of the following messages: iLink message:
Results list truncated – too many terms WorkFlows message:
Partial search results too longDelivered default value and best choice
for most libraries
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Exact Hypertext SearchExact lookup in the browse index
specified in first browse variationMay be the best choice for some large
libraries
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Keyword Hypertext SearchLookup in the keyword indexesUses keyword index specified in first
keyword variationOnline help does not recommend this
type
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Hypertext Search Subfields In this example, all 780 subfields are
included in the hypertext search: Journal+of+the+American+Medical+Association+0
002-9955+(DLC)+++07037314+(OCoLC)1480379
It’s highly unlikely that a match will be found for this search string
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Hypertext Search Subfields In this example, only 780 |t is included
in the hypertext search: Journal+of+the+American+Medical+Associ
ation It’s very likely that a match will be found
for this search string