Transcript MAIQuery and TM Navtree

Leveraging Your
Taxonomy to
Increase User
Productivity
MAIQuery and TM Navtree
Taxonomies aid site organization
Taxonomy provides:
 Framework for content
organization
 Hierarchical outline of your
content by subject categories
 Basis for effective browsing
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Integrated taxonomy enhances
findability

Browsable categories of a directory
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Smart search for term equivalents
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Taxonomy terms (original or
modified) as labels
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Navigation aids incorporate taxonomy
terms and relationships
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Example Search: body growth
Complete database (60,000 + titles)
 Free text search
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
Free text search on titles
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
hits — some irrelevant
hits — limited recall
Search by taxonomy descriptor (AKA
subject term or category)
 470
hits
 100%
relevant
 100% recall
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Increasing User Productivity

Items in an information collection
can be retrieved with better
precision (relevance) and better
recall by using a controlled
vocabulary to assign subject terms
(key words) to them
How do you connect your
users to the controlled
vocabulary?
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Connecting Users
1.
Use the rulebase you’ve
developed for machine
aided indexing (MAIQuery)
2.
Use the controlled
vocabulary itself
(TM Navtree)
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MAI’s talents
 MAI
(Machine Aided Indexer)
 helps
authors and editors
assign effective subject terms
 automates
the assignment of
subject terms to items in legacy
collections
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Taxonomy terms on documents
help sort and organize the content
M.A.I. suggests the correct terms
from the taxonomy as descriptors
 M.A.I. rulebase recognizes term
equivalents

germs  Microorganisms
 vaccin*  Pharmaceutical drugs

Recognizing term equivalents
enables enhanced search
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MAI’s “hidden talents”
 MAI
can also:
 Provide for the appropriate
preferred term when given a
word or phrase
 Return preferred terms for uses
of the word in different
contexts
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More “hidden talents”
 MAIQuery
 Show
can:
related terms from the
thesaurus to broaden a search
 Show the rules and preferred
term’s scope notes to clarify
how the preferred term relates
to others in the thesaurus
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Presenting: MAIQuery™
 Web
page presents a search box
that will use the MAI rulebase
 Can
be in addition to full text
search and advanced search
 User
enters a word or phrase in
the search box
 MAI searches the rulebase for
any occurrences of the word(s)
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MAIQuery
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the MAIQuery demo
 Uses
web pages and php coding:
 Passes
the search words to
“dosearch.php”
 dosearch.php passes the term to
MAI’s concept extractor
 MAI returns a list of suggested
terms from the controlled
vocabulary
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Suggested terms
The term Music is suggested
by the rule for music*(1)
Click on the first (the preferred term) to see the term record; click on the second to see the MAI rule
The term Instrumental Music is suggested
by the rule for music*(1)
Click on the first (the preferred term) to see the term record; click on the second to see the MAI rule
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Options
 Thesaurus
Master can be queried
to show the term record
 Broader
term
 Narrower terms
 Use For terms (“synonyms”)
 Related terms
 Scope notes
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Options, continued
 MAI
can be queried to return the
rule that includes the search
word(s)
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Show the rule
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Options, continued
 Your
database/index of items is
then queried to bring back the
records in your collection that are
indexed with the preferred term
 For
our demo, we wrote an xquery
request into the gettitles.php file
 Our 1100-title demo records are
maintained by a MarkLogic server
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A list of items
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Choose the item
 Your
user clicks on the item(s)
appropriate to their query
 The
document details (or the item
itself) is returned
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The right stuff
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How’s it working?
What words and phrases do your
users search for?


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a search log can record “misses”
a user focus group can suggest
additions
subject matter experts can help in
their area of expertise
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Fine tuning
Modify your taxonomy to respond
to more words



add common misspellings to
rules
add alternate words as Use For
terms (synonyms) in the
thesaurus
(or as additions to the rules)
consider terms for addition to
the thesaurus (candidates)
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The advantages
 MAIQuery
connects your user
with the controlled vocabulary
 Your user can review term
records and rulebase rules to
learn more about your taxonomy
 Your user becomes more
productive
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Another way to connect users
 Category
search used more than
half the time for research
 Also known as directory search,
your user “drills down” from
general to specific
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Value of Category search
 Searchers
find info 50% faster
using browsable categories than
using list returned from free text
search
 Results
even stronger when results
not in top 20 returns
 Searchers
prefer browsable
category search
Chen, H., and Dumais, S.
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Search – the Directory Approach
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Category: Business and Economy
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Results: Business Libraries
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Your Thesaurus as Directory
 Present
your controlled
vocabulary as a guide to your
collection
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Thesauri OnLine

Australian Governments' Interactive
Functions Thesaurus – AGIFT
http://www.naa.gov.au/recordkeeping/thes
aurus/000482.htm
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Transportation Research Thesaurus – TRT
http://ntl.bts.gov/trt/trt_topterms.jsp
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NBII (National Biological Information
Infrastructure)
http://thesaurus.nbii.gov/SearchNBIIThesa
urus/about.faces
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Presenting: TM Navtree
 Your
thesaurus presented as a
navigation aid
 User “drill down” with all the
neighboring terms visible
 Each term indicates the number
of documents indexed with it
 Terms are hyperlinks to a list of
items
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A hierarchical tree
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See full topic coverage by revealing
Narrower Terms
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Choose a term
 Click
on a term, get the titles
indexed with it
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Choose a title
 Click
on a title, get its details (or
bring up the item)
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How it’s done
used PHP Levels, an open
source application from
SourceForge to create the tree
 An exported XML version of the
thesaurus is parsed to produce
the required text file to populate
the tree
 The content manager is queried
for the document totals
 We
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How it’s done, continued
 When
a term is selected, it is
passed to a gettitles.php
 A bit of php code connects to the
content manager and returns a
string of data about each title
 The web page displays the data
in the format desired
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The advantages
 TM
Navtree Top Terms describe
the organization of your
collection(s)
 Narrower terms help your user
hone in on the most appropriate
term
 Adjacent terms impart
connotation
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The advantages
 ALL
the records indexed with the
chosen term are returned
 Your user finds what’s needed
more quickly and is more
productive
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Questions?
Comments?
Try out the demo at
www.mediasleuth.com
See more details:
Data Harmony Programmer
Interface for Web Applications
Thank you.
Mary Garcia
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Making Users
More Productive
MAI Query and NavTree from
Data Harmony
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