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My AltaVista: Adventures with Advanced Keyword. Mary Strouse MAIUG 4 October 25, 2002. AVS Toolbox. Advanced Keyword Fundamentals Basic Decisions: Screens, Segments & Limits The Fine Print : WWWOptions, Tokens, Javascript Advanced staff searching. Why Advanced Keyword?.
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My AltaVista:Adventures with Advanced Keyword Mary Strouse MAIUG 4 October 25, 2002
AVS Toolbox • Advanced Keyword Fundamentals • Basic Decisions: Screens, Segments & Limits • The Fine Print: WWWOptions, Tokens, Javascript • Advanced staff searching MAIUG 10/25/02 MMS
Why Advanced Keyword? • Speed – faster results, faster indexing • Phrase searching • Segmentation – keyword in title, etc. • Cross-index searches – Author/Title, Subject/Genre, etc. • Wildcarding MAIUG 10/25/02 MMS
Why Advanced Keyword? • Pre-search limits & sorts • Bells & whistles • Proximity operators (near & within n), • Relevance ranking (title, then author, then subject!) • Keyword highlighting MAIUG 10/25/02 MMS
What Hasn’t Changed • Only indexed fields are searched • Result is a list of titles • No cross-references • Limit on retrieval (32,000 vs. 5,000 “bib record entries”) • Keyword synonyms list MAIUG 10/25/02 MMS
Cross-Reference MAIUG 10/25/02 MMS
Subject Search Result MAIUG 10/25/02 MMS
Keyword Search Result MAIUG 10/25/02 MMS
Basics: 3 Search Screens (+1) The X,Y and Z of it: X – Advanced Boolean (pre-search limits & sorts) Y – Simple Boolean (w/o limits/sorts) Z – “AltaVista Style” searching MAIUG 10/25/02 MMS
“AltaVista” Searching • Broader search (default “Or”) • Use + and – to include/exclude • Relevance ranking of results • No segments, limits, or boolean operators • Auto wildcarding to end of word MAIUG 10/25/02 MMS
Simple Boolean (Y) MAIUG 10/25/02 MMS
Advanced Boolean (X) MAIUG 10/25/02 MMS
The Search-builder (X+) MAIUG 10/25/02 MMS
Basics: 4 Segments • Author (a:) , Title (t:) and Subject (s:) • Use same fields as existing indexes • Notes (n:) • Fields customizable at setup • All fields must belong to at least one segment (… or limit) • No custom segments (but….) MAIUG 10/25/02 MMS
Basics: Choice of Fields • Maximalist approach (default) – includes most 5xx fields • Minimalist approach – 505, 520 [& 970 subfields not already included] • “Notes” segment can include other fields or subfields (ex. GMD from 245 |h ) MAIUG 10/25/02 MMS
GMDs in Notes Segment MAIUG 10/25/02 MMS
Basics: Choice of Limits • Pre-Search Limits can be: • Fixed length codes • Special fields (006, 008) • Variable fields • Existing Post-Search limits as default (minus “search as words”) • Custom limits allowed MAIUG 10/25/02 MMS
Custom Limit Using 006 MAIUG 10/25/02 MMS
Custom Limits, Good and Bad • Variable field limits function like custom segments • Pre-search limits are indexed • Use caution. Data from limits added to general (unsegmented) search ex. Publisher limit MAIUG 10/25/02 MMS
Variable limit in Cross-Index Search MAIUG 10/25/02 MMS
Limit Used as Exclusion MAIUG 10/25/02 MMS
Variable Limit as Drop-down MAIUG 10/25/02 MMS
Publisher Limit MAIUG 10/25/02 MMS
“Noise” Retrieval MAIUG 10/25/02 MMS
Display WWWoptions • KEYWORD_COLOR= Controls color highlighting • On/Off • Color choice • What fields/field groups apply • DROP_DOWN= Controls inclusion & order of indexes in the “search widget” MAIUG 10/25/02 MMS
Keyword Highlighting MAIUG 10/25/02 MMS
Keyword in Search Widget MAIUG 10/25/02 MMS
AVS WWWoptions AVS_TAG=XYZ • Determines what search varieties are allowed (Must have search screens to match) • May still choose not to offer all 3 screens in mainmenu • Consider impact on pass-through searches (e.g. Partners, INN-Reach) MAIUG 10/25/02 MMS
AVS WWWoptions • ASSEARCH (Release 2000 Update D) (Replaces ASTRUNCATE) 1 Change “no hits” search to "AND" 2 Change to "OR" 3 Strip off field limits … Etc. • Coming: option to restore “and”default (Rel 2002 Phase 3) MAIUG 10/25/02 MMS
AVS WWWoptions • AVS_RELEVANCE_FORMAT= • Controls display -- text vs. graphics (also IMAGE_AVS#= ) MAIUG 10/25/02 MMS
…and a System Option A = Alphabetical D = Date R = Relevance First code is the default (controls in Telnet, Millennium, & when sort undefined). MAIUG 10/25/02 MMS
Tokens Take Over AVS Required Tokens: • <!--{msg}--> Error message Needed to generate “no hits” message • <!--{search}--> creates search input box MAIUG 10/25/02 MMS
“No hits” Message MAIUG 10/25/02 MMS
What [else] Required Tokens Do <!--{search}--> also: • Preserves search criteria on “modify search” • Triggers color highlighting of keywords MAIUG 10/25/02 MMS
The Java Jive Javascripts library on CSdirect: • Expand “no hits” search to other catalogs/scopes (various versions) • Search-builder (coming soon?!) • [Your idea here] MAIUG 10/25/02 MMS
Partners Link from Search Results MAIUG 10/25/02 MMS
Pass-through “no hits” Screen MAIUG 10/25/02 MMS
Advanced Staff Searching • Advanced Keyword in both Telnet and Millennium • In Millennium and Telnet Search , default is simple Boolean (Y) search • In Telnet staff modules, use command language to specify search (X,Y or Z) MAIUG 10/25/02 MMS
Staff Command Line Qualifiers • Segments (a:, t:, s:, n:) & variable limits (publisher, genre) • Fixed-length limits • mattype:mattypen • lang:langn • branch:branchn • Default sort • Post-search limiting (not recommended) MAIUG 10/25/02 MMS
Staff Command Search Telnet (X) Millennium (Y) MAIUG 10/25/02 MMS
Documentation Manual (Rel. 2002) is best source • Advanced searching (OPAC) -- #101241 • Search screens & tokens -- #102136 • “AltaVista” syntax -- #101242 • Boolean syntax -- #101243 • Index and field qualifiers -- #101244 • AVS WWWoptions -- #102170 • Relevance ranking options -- #101916 • Millennium -- #105367 MAIUG 10/25/02 MMS
Other Documentation • Advanced Search WWWoptionshttp://csdirect.iii.com/faq/woptions_avs.shtml#assearch • CSdirect FAQhttp://csdirect.iii.com/faq/adv_sch.shtml • Javascript Library http://csdirect.iii.com/faq/avs-java.shtml • The searchbuilder screenhttp://www.iii.com:81/search/X MAIUG 10/25/02 MMS
Contact: Mary M. Strouse, Head of Technical Services Judge Kathryn J. DuFour Law Library The Catholic University of America (202) 319-5547 strouse@law.cua.edu MAIUG 10/25/02 MMS