deep-indexing the opac: integrating contents information into search results mary m. strouse, cua...
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![Page 1: Deep-Indexing the OPAC: Integrating Contents Information into Search Results Mary M. Strouse, CUA DuFour Law Library 7 th MAIUG Annual Conference, October](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e525503460f94b47dea/html5/thumbnails/1.jpg)
Deep-Indexing the OPAC: Deep-Indexing the OPAC: Integrating Contents Integrating Contents
Information into Search Information into Search ResultsResults
Mary M. Strouse, CUA DuFour Law Library7th MAIUG Annual Conference, October 2005.
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Functions of Contents Functions of Contents Information (TOC Data)Information (TOC Data)
• Evaluation:Does this resource suit my purpose?
• Navigation:Which volume(s), pages do I need?
• Identification/Collocation:
What does the library have about…?
…Written by…?
… Containing… [known title]?
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Local Priorities for TOC Local Priorities for TOC InclusionInclusion
• Edited collections on broad themes
• Diverse geographic treatments
• Conferences, symposia, anthologies
• Local interest (our faculty, etc.)
Unifying themes: multiple authorship and/or non-predictable content
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Where, When and HowWhere, When and How• Choice of vendors
• Blackwell• Syndetic Solutions• Marcive (using Syndetic’s data)• Scanning/local input
• Loading mechanisms• III loading services (Blackwell)• Matching on demand
• Choice of formats
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• Standards-compliant• Existing tools (macros, spell-check) • Includes volume and chapter, but not
page #• Keyword access to titles and authors • Titles indexed (all or nothing)• Can’t index authors (not in inverted form).• Can be difficult to read
505 Enhanced Contents 505 Enhanced Contents NoteNote
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Vendor TOC Format Vendor TOC Format (97x)(97x)
• Displays as a table of contents • Includes page numbers• Indexing flexibility: authors and titles as
well as keyword • Can exclude generic titles
(“Introduction” “Preface”, etc.) from indexing
• Space for both transcribed and authorized forms
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97x TOC Format Detail97x TOC Format Detail 970 field (one per chapter or section title)
Indicator 1 : title indexing0 Non-distinctive title (don’t index*)1 General chapter title or heading 2 Citable title No longer used
Indicator 2: hierarchy, degree of indentation |l: Section or chapter label |t: Section or chapter title |c: Personal author |f: Personal author in inverted form *|d: Non-personal author|e: Editor |p: Starting page number
*by default, authors of non-distinctive titles are not indexed. May be indexed on request.
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Disadvantages of TOC Disadvantages of TOC Format:Format:
• Table-like format takes up screen, adds significantly to printing
• Limitations on use of vendor data (TOC blocked in exported results)
• Implicit burden on library staff • Commingling of library and vendor data
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Display bug: Corporate author doesn’t display
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Effect on Keyword SearchEffect on Keyword Search
• Adds significantly to retrieval in keyword searches – authors and titles
• Display element in keyword results is always the book title – also true of sorted/limited results.
• Search terms are highlighted in full record display
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Effect on Title SearchEffect on Title Search
• Library determines which titles to exclude (970 first indicator)
• Chapter titles will appear in unsorted results browse
• Chapter titles not identified as such• English initial articles automatically
excluded• Search terms highlighted in full record
display
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Effect on Author SearchEffect on Author Search
• Individual authors are linked in record (as transcribed) and appear in browse list (indexed form)
• Authority work often needed to match with existing names
• Corporate authors from 970 |d and editors from 970 |e not indexed
• Display of titles in extended browse follows same rules as title search
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Keyword-only Indexing Keyword-only Indexing OptionOption
• Includes authors and titlesMust specify inclusion in author and
title segments • Avoids collocation issue/authority work • Avoids “noise” retrieval, confusion
between chapters and books• Limits access to documents and reports
(distinct works)• Limits effectiveness of known-author
and known-title searches
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Formatting ControlsFormatting Controls
• BIB_TOC_HEADER WWWoption• Places a caption at head of TOC display• Default: no caption• Accepts HTML for formatting or link to a
help file• TABLEPARAM_BIB_TOC • Stylesheet Class : bibTOC• No link in brief citation
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Search result display Search result display optionsoptions
• DISPLAY_245= does not apply to chapter titles
• EXTENDED_T=U will not force a book title to display
• Beware confusion from forcing extended display (INDEX_EXT=ta)
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BROWSE WWWoptionBROWSE WWWoption
• Controls first line of index browse • BROWSE_T= controls first line of record
browse (in absence of briefcit.htm )• If no 970 subfields are specified, all
subfields will display• If specify default subfields for non-245
titles, must include subfield t
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Example 1: BROWSE_T=245/abnp/c or BROWSE_T=245/abnp/c |970/t/cdBROWSE_T=245/abnp/c |970/t/cd|/a/c|/a/c
(ALL TOC subfields display)(ALL TOC subfields display)
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Example 2: BROWSE_T=245/abnp/c |970/t/cd andBROWSE_T=245/abnp/c |970/t/cd |/at/c
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Briefcit FormatBriefcit Format
<span class="briefcitTitle"><!--{linkfieldspec:VbT}--></span>
• All record browse screens show book titles (includes limited and keyword results)
• All index browse screens show chapter titles (includes sorted results)
• Use BROWSE_T= (define 970 |t to avoid “no title” display)
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Briefcit FormatBriefcit Format
<span class="briefcitTitle"><!--{linkfieldspec:Vbt245abnp}--></span>
• All record browse screens show book titles
(includes sorted, limited and keyword)• Only system-sorted index browse shows
chapter titles
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Loading and Workflow Loading and Workflow IssuesIssues
• False adds : monographic series w/ ISSNs, • False drops: CIP and other title
discrepancies• Coding consistency• Authority control
• Volume of work• Lack of tools• No mechanism to identify/protect library-
added data
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Coding issues: vendor- Coding issues: vendor- supplied datasupplied data
• Titles and names transcribed from TOC, not from fullest form available
• No space for formal titles of included works -- we add 7xx
• Inconsistent coding of index-worthiness • Is “Appendix” a title or a number?
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““Non-personal” Authors: Non-personal” Authors: |d|d
• Used for corporate author:
970 11 |l9 |tRedefining Discrimination: 'Disparate Impact' and the Institutionalization of Affirmative Action |d United States Department of Justice Office of Legal Policy |p121
• Also used for personal authors in direct order (but sometimes not):970 12 |tExcerpts from Antigone |d Sophocles |
p11 970 11 |tReith Lecture 2000 |d The Prince of
Wales |p11
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““Non-personal” Non-personal” Authors: |dAuthors: |d
• Also used for other transcribed phrases and “et al.”:
970 21 |tWorkshop Discussion: Civil Litigation Against Terrorism |d Workshop Participants |p185
970 21 |tPublic Support for Access to Government Records: A National Survey |cPaul D. Driscoll| fDriscoll, Paul D. |cSigman L. Splichal |fSplichal, Sigman L. |cMichael B. Salwen|fSalwen, Michael B. |d [et al.] |p23
• Library can add index link in |f (not vendor-provided)
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Recap: User IssuesRecap: User Issues
• Cost in screen space, added printing• Multiple forms of author entry (split
files)• Can’t distinguish between chapter and
book-length treatment (increased noise)
• License limitations on data use
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Wish ListWish List
• Fix corporate author display bug • Identify chapter titles in search results• Option to force display of both chapter
title and book title in extended browse • Link to full TOC display from brief
citation format (briefcit.html)• Allow limited data export for legitimate
scholarly use
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Recap: Workflow Recap: Workflow IssuesIssues
• Vendor-dependent format
• Staff burden – need coding regularization
• Co-mingling of vendor and library data
• False positives (multiple ISBN)
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Wish ListWish List
• Additional Subfields/Codes:• Indexed/authorized form for corporate
author• Data source and ownership • Authority history
• Subfield code(s) to identify library-added TOC data, overlay-protect library-added authority work
• Better coding conventions, transparency
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ReferencesReferences
• CSDirect TOC Data FAQ (password required)http://csdirect.iii.com/faq/tocfaq.shtml
• Blackwell TOC Enrichment brochurehttp://www.blackwell.com/pdf/TOCEnrichment.pdf
• Vendorshttp://www.blackwell.com/level2/TOC.asphttp://www.syndetics.com/index.htmhttp://www.marcive.com/HOMEPAGE/MARCres.htm(Marcive uses Syndetics data)
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ContactContact
Mary M. StrouseHead of Technical ServicesJudge Kathryn J. DuFour Law
LibraryCatholic University of Americastrouse at law.cua.edu