1 / 44

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.

sawyer
Télécharger la présentation

Leveraging Your Taxonomy to Increase User Productivity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related