Embase technology showcase mla v9

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Presented at MLA2011. Improved indexing changes are outlined as well as significant improvements to saving searches as part of a systematic search workflow.

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  • Content is key/backbone for Embase(Over 360k conference abstracts)Continue to focus to building up content but also on enhancing functionality and indexing/quality.
  • Bullets in the boxes
  • Condense
  • From 2011: Users will consistently search all Embase with the current Emtree (preferred terms/synonyms, including explosion searching)Backposting entails all older records being reloaded so that their indexing is consistent with the new Emtree (2011). This means that you will be able to search all Embase with Emtree 2011 PTs /synonyms and get comprehensive retrieval, including in explosion searches, even for records indexed with candidate terms which have since been incorporated into Emtree. If you want an example see my email of 5 May last week copied to you last week (How badly do we need backposting?) in which I provided these examples:2010: I checked this using test term tocilizumab, which replaced atlizumab in 20102011: I will check after they have loaded Emtree 2011 (mid-May): test term cositecan will replace karenitecinSo after the reload cositec/de will have the same results as karenitecin/de (and all the results will be included in an explosion search using any of the BTs ofcositec)
  • Bullets in the boxes
  • Previously: 10 “study type” check tags (for example, clinical trial) were used in Embase for ALL items that were about the study type, as well as for original reports of clinical trials etc.
  • Old and new Emtree treeClinical trials ChangesAs from 2011, clinical trial is used to index prospective clinical veterinary trials.Before 2011, clinical trial was limited to human studies only. Search tipsLimit clinical trial using human to ensure only human studies are retrieved.A small number (<3%) of clinical trials indexed before 2011 are non-human. This is attributable to the Medline content of Embase.
  • Diagnostic test accuracy studies ChangesThe new check tag diagnostic test accuracy study was introduced in 2011Before 2011, such studies could only be searched indirectly (e.g. with terms such as diagnostic accuracy) Search tipsAs from 2011, use the check tag diagnostic test accuracy study to find studies which assess how accurately tests distinguish humans or animals which have a condition or disease from those who do not (see scope note). This has been indexed 3000 times from January-May 2011.To extend retrieval to all studies on diagnostic accuracy, also search using the term diagnostic accuracy.
  • Bullets in the boxes
  • New folder structure and privacy rights. It is now not allowed to save a search in a public folder (previously my institution), which contains a reference to a search in a private folder. So they must be fully in private or public, and NOT in both. Right now they can be in both which is an obstacle for sharing, as it looks to be a public search but then only the owner of the private folder will be able to work with the query. Now the user will see a warning if they try to save a search in this way. It is not allowed. There is now no crossover between the folders, and a clear divide between public and private. Improved look and feel – new icons, and private folders now have locks.
  • A search strategy is any search made up of one or more queries. From the results screen. When you select a search,( here no.6), all related searches are identified (blue check mark). This can then be saved as a strategy by clicking on save. Add naming and searching…
  • In saved search folders the strategy is saved not as a flattened query but with all the steps comprising the strategy broken down, exactly as they were in session results. The user then has a number of possible actions form the drop down menu (rerun, alert, edit). The updated hit count can be previewed in saved searches, or for more details you can go straight to the results screen.
  • The user then has a number of possible actions form the drop down menu (rerun, alert, edit). The updated hit count can be previewed in saved searches, or for more details you can go straight to the results screen.
  • Bullets in the boxes
  • Embase technology showcase mla v9

    1. 1. Evidence-Based Medicine Support for Medical Librarians<br />Minneapolis, USA<br />MLA 2011<br />
    2. 2. Embase Content Overview<br />Emtree: Biomedical thesaurus, over 60k terms<br />1947<br />1950<br />1974<br />2009<br />Embase: Fully indexed: Over 7,700 journals, 1974-<br />MEDLINE: 2,500 journals unique to Embase, mapped to Embase indexing, 1950- (including MEDLINE Classic)<br />Embase Classic:Digitally scanned andre-indexed, 1947-1973<br />AIP and In Process:Indexing added, from 2009<br />Conference Abstracts:Indexing added, from 2009<br />
    3. 3. Agenda<br />Emtree<br /><ul><li>Regular updates
    4. 4. Backposting</li></ul> Indexing<br /><ul><li>NEW study type and changes to existing ones</li></ul> Workflow<br /><ul><li>Search Strategies</li></li></ul><li>Emtree (from Jan 2011)<br /><ul><li>60K preferred terms (more than 29K drugs and chemicals)
    5. 5. >260,000 synonyms (>172,000 drugs and chemicals)
    6. 6. 7,500 explosion terms (that define the hierarchical structure)
    7. 7. 78 subheadings (64 drug and 14 disease subheadings)
    8. 8. 14 study types including Randomised Controlled Trial, Systematic Reviews and the NEWLY introduced Diagnostic Test Accuracy Study
    9. 9. Links to over 21,000 CAS registry numbers
    10. 10. All MeSH terms are included</li></li></ul><li>Emtree 2011: More updates and comprehensive drug coverage<br /><ul><li>All drug generic names described by FDA and EMEA
    11. 11. All International Non-Proprietary Names (INNs) described by WHO from 2000
    12. 12. Extended coverage of Trade Names
    13. 13. Increased updates – 3 times per year</li></li></ul><li>Emtree 2011: Backposting<br />Emtree 2010<br />Emtree 2011<br />Example: Cositecan replaced karenitecin in 2011<br />As karenitecin is mapped to cositecan results from all of Embase will be retrieved by using the new term, and the same results will be retrieved using cositec/deas karenitecin/de <br />
    14. 14. Agenda<br />Emtree<br /><ul><li>Regular updates
    15. 15. Backposting</li></ul> Indexing<br /><ul><li>NEW study type and changes to existing ones</li></ul> Workflow<br /><ul><li>Search Strategies</li></li></ul><li>Study Type<br />From 2011: clinical trial (study type)<br />From 2011: clinical trial (topic) item<br />From 2011: Embase now differentiates by using separate terms, for example clinical trial limited to the study type AND clinical trial (topic) for items about clinical trials.<br />
    16. 16. Human<br />Emtree 2010<br />Emtree 2011<br />Previously: Limited to humans as experimental subjects. <br />From 2011: Includes items reporting (for example) the training of medical staff (i.e. even though they are not regarded as “experimental” subjects).<br />
    17. 17. Clinical trial<br />Definition: Used for original reports of prospective clinical studies in which the (comparative) efficacy of one or more medical interventions in humans is evaluated; also used for prospective clinical veterinary trials in which the (comparative) efficacy of one or more medical interventions in animals is evaluated.<br />Previously: This check tag was limited to use in human studies. <br />From 2011: It now includes veterinary clinical trials.<br />
    18. 18. Diagnostic Test Accuracy Study<br />Definition:Used for original studies or systematic reviews which assess how accurately a test distinguishes humans or animals having a condition or disease from those who do not. Typically, the test under evaluation is called the index test and its results are compared to the results of the best.<br />Previously: Did not exist<br />From 2011: This is a new check tag and unique to Embase<br />
    19. 19. Agenda<br />Emtree<br /><ul><li>Regular updates
    20. 20. Backposting</li></ul> Indexing<br /><ul><li>NEW study type and changes to existing ones</li></ul> Workflow<br /><ul><li>Search Strategies</li></li></ul><li>Search Strategies<br /><ul><li>An expert user feature to support the specialist workflow with:
    21. 21. Saving; sharing; editing; rerunning and alerting
    22. 22. Enhanced:
    23. 23. Privacy settings
    24. 24. Transparency of complex strategies</li></ul>Increased flexibility when working with complex searches<br />
    25. 25. Saving a Strategy from Results<br />Selecting the search identifies all related searches and allows the user to save as a strategy <br />
    26. 26. Your Saved Searches<br />Searches are saved with all steps of the strategy clearly visible. The user, can update and rerun saved search strategies<br />
    27. 27. Coming up….<br />
    28. 28. Editing your saved searches<br />Saved searches can be edited, and changes previewed and accepted.<br />When rerun, the result count will be updated<br />
    29. 29. Sign up for Beta Testing<br />http://beta.embase.com<br />Please leave your email address today and we will send you a user name and password<br />
    30. 30. Elsevier Training Desk: For your training needs<br />
    31. 31. Agenda<br />Emtree<br /><ul><li>Regular updates
    32. 32. Backposting</li></ul> Indexing<br /><ul><li>NEW study type and changes to existing ones</li></ul> Workflow<br /><ul><li>Search Strategies</li></li></ul><li>Thank you for your attention<br />

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