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Leveraging Your Taxonomy to Increase User Productivity

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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Leveraging Your Taxonomy to Increase User Productivity

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  1. Leveraging Your Taxonomy to Increase User Productivity MAIQuery and TM Navtree

  2. Taxonomies aid site organization Taxonomy provides: • Framework for content organization • Hierarchical outline of your content by subject categories • Basis for effective browsing

  3. Integrated taxonomy enhances findability • Browsable categories of a directory • Smart search for term equivalents • Taxonomy terms (original or modified) as labels • Navigation aids incorporate taxonomy terms and relationships

  4. Complete database (60,000 + titles) Free text search 8 hits — some irrelevant Free text search on titles 6 hits — limited recall Search by taxonomy descriptor (AKA subject term or category) 470 hits 100% relevant 100% recall Example Search: body growth

  5. How do you connect your users to the controlled vocabulary? 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

  6. Connecting Users • Use the rulebase you’ve developed for machine aided indexing (MAIQuery) • Use the controlled vocabulary itself (TM Navtree)

  7. 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

  8. 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

  9. 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

  10. More “hidden talents” • MAIQuery can: • Show 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

  11. 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)

  12. MAIQuery

  13. 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

  14. 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

  15. Options • Thesaurus Master can be queried to show the term record • Broader term • Narrower terms • Use For terms (“synonyms”) • Related terms • Scope notes

  16. Options, continued • MAI can be queried to return the rule that includes the search word(s)

  17. Show the rule

  18. 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

  19. A list of items

  20. Choose the item • Your user clicks on the item(s) appropriate to their query • The document details (or the item itself) is returned

  21. The right stuff

  22. How’s it working? What words and phrases do your users search for? • a search log can record “misses” • a user focus group can suggest additions • subject matter experts can help in their area of expertise

  23. 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)

  24. 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

  25. 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

  26. 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.

  27. Search – the Directory Approach

  28. Category: Business and Economy

  29. Results: Business Libraries

  30. Your Thesaurus as Directory • Present your controlled vocabulary as a guide to your collection

  31. Thesauri OnLine • Australian Governments' Interactive Functions Thesaurus – AGIFThttp://www.naa.gov.au/recordkeeping/thesaurus/000482.htm • Transportation Research Thesaurus – TRT http://ntl.bts.gov/trt/trt_topterms.jsp • NBII (National Biological Information Infrastructure)http://thesaurus.nbii.gov/SearchNBIIThesaurus/about.faces

  32. 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

  33. A hierarchical tree

  34. See full topic coverage by revealing Narrower Terms

  35. Click on a term, get the titles indexed with it Choose a term

  36. Click on a title, get its details (or bring up the item) Choose a title

  37. How it’s done • We 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

  38. 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

  39. 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

  40. The advantages • ALL the records indexed with the chosen term are returned • Your user finds what’s needed more quickly and is more productive

  41. Questions? Comments? Try out the demo at www.mediasleuth.com See more details: Data Harmony Programmer Interface for Web Applications Thank you. Mary Garcia

  42. Making Users More Productive MAI Query and NavTree from Data Harmony

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