601 l3-database

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601 l3-database

  1. 1. LIS 601 Information Structure of Databases Fall 2010 Lori Bell University of Hawaii Library and Information Science Program
  2. 2. Online Catalog & Database Overview <ul><li>DATABASES </li></ul><ul><li>RECORD STRUCTURE </li></ul><ul><ul><li>Searchable Fields </li></ul></ul><ul><li>COMMAND LANGUAGES </li></ul>Nahl LIS 601 2010
  3. 3. Online Catalog & Database Search Languages <ul><li>CONTROLLED VOCABULARY (CV) </li></ul><ul><ul><li>Indexed using a select list of terms </li></ul></ul><ul><ul><li>Assigned by a cataloger or an indexer </li></ul></ul><ul><li>NATURAL LANGUAGE (NL) </li></ul><ul><ul><li>Words & phrases in a document </li></ul></ul><ul><ul><li>Written by authors, reviewers, & abstractors </li></ul></ul>Nahl LIS 601 2010
  4. 4. Exercise: Online Catalog Record Structure <ul><li>What is the publication date of this book? </li></ul><ul><li>What LCSH terms (CV) are assigned? </li></ul><ul><li>What words in the title might be useful search terms? (NL) </li></ul><ul><li>Why is Humanitarian Assistance in red or bold in the record? </li></ul><ul><li>Who is the author? </li></ul><ul><li>Where is the item located? </li></ul>Nahl LIS 601 2010
  5. 5. Voyager Public Record Field Structure Nahl LIS 601 2010
  6. 6. Database Search Modes & Search Operators <ul><li>SEARCH MODES </li></ul><ul><ul><li>KEYWORD (non-linear, any word order, searches multiple fields simultaneously) </li></ul></ul><ul><ul><li>BROWSE (linear, exact syntax and word order, alpha-numeric order, searches one field at a time) </li></ul></ul><ul><li>LOGICAL OPERATORS used to combine terms </li></ul><ul><ul><li>Boolean Thinking (Set Arithmetic) </li></ul></ul><ul><ul><li>AND , ALL, + </li></ul></ul><ul><ul><li>OR , ANY </li></ul></ul>Nahl LIS 601 2010
  7. 7. Voyager Basic Search Fields Nahl LIS 601 2010
  8. 8. Voyager Keyword Search Results Nahl LIS 601 2010
  9. 9. Voyager Record Web 2.0 Features Nahl LIS 601 2010
  10. 10. Voyager LCSH Controlled Vocabulary Nahl LIS 601 2010
  11. 11. Voyager Advanced Search Fields Nahl LIS 601 2010
  12. 12. Voyager Advanced Search Fields <ul><li>Advanced Search = KEYWORD SEARCH MODE </li></ul><ul><li>Subject Keyword (SKEY) </li></ul><ul><li>Publisher: Date or Name </li></ul><ul><li>Contents/Summary (KCON) </li></ul><ul><li>Author Name (NKEY) </li></ul><ul><li>Language (KLNG) </li></ul><ul><li>More… </li></ul>Nahl LIS 601 2010
  13. 13. Voyager Advanced Search Results Nahl LIS 601 2010
  14. 14. Voyager Lib 2.0 Record Features Nahl LIS 601 2010
  15. 15. Database Search Operators <ul><li>TRUNCATION / STEMMING / WILDCARD for Variant Spellings </li></ul><ul><ul><li>* </li></ul></ul><ul><ul><li>? </li></ul></ul><ul><ul><li>$ </li></ul></ul><ul><li>PROXIMITY CONTROL </li></ul><ul><ul><li>Phrase </li></ul></ul><ul><ul><li>“ “ </li></ul></ul>Nahl LIS 601 2010
  16. 16. Periodical Index & Abstracting Databases <ul><li>Levels & amount of information, & access techniques ( Handouts p. 6 ) </li></ul>Nahl LIS 601 2010
  17. 17. ERIC Database: Information Structure & Search Language <ul><li>ERIC Handouts p. 8 </li></ul><ul><li>ERIC Database Search Language </li></ul><ul><ul><li>CV : (Indexed) Descriptors ( DE= ) </li></ul></ul><ul><ul><li>NL : (Indexed) Identifiers ( ID= ) </li></ul></ul><ul><ul><li>NL : (Not Indexed) Keywords ( KW= ); Anywhere </li></ul></ul>Nahl LIS 601 2010
  18. 18. Finding the CV in a Database <ul><li>HL Gateway </li></ul><ul><li>Click E-Resources & Databases </li></ul><ul><li>Type in search box: eric </li></ul><ul><li>Unclick:  Journals   Online books </li></ul><ul><li>Click ERIC (via CSA) (twice) </li></ul><ul><li>Click Search Tools: </li></ul><ul><ul><li>Thesaurus Search </li></ul></ul><ul><ul><li>Pull down field types menu Descriptors (DE=) </li></ul></ul>Nahl LIS 601 2010
  19. 19. Sample Search in ERIC Comparing CV with NL Results <ul><li>academic achievement AND educational attainment </li></ul><ul><ul><li>DE field search = 901 (CV) </li></ul></ul><ul><ul><li>KW field search = 1333 (NL/KW/Anywhere) </li></ul></ul><ul><li>academic achievement OR educational attainment </li></ul><ul><ul><li>DE field search = 53,356 (CV) </li></ul></ul><ul><ul><li>KW field search = 56,997 (NL/KW/Anywhere) </li></ul></ul>Nahl LIS 601 2010
  20. 20. ERIC Database Record Structure <ul><li>TI: Turnaround in Texas: How One District Closed Its Minority Achievement Gap. </li></ul><ul><li>AU: Cook, Glenn </li></ul><ul><li>SO: American School Board Journal; v190 n2 p22-25 Feb 2003 </li></ul><ul><li>IS: 0003-0953 </li></ul><ul><li>NU: Clearinghouse: EA540434 </li></ul><ul><li>AB: Describes how one district closed its minority achievement gap by employing the Brazosport model, a combination of effective-schools research and Total Quality Management principles. The model includes an eight-step &quot;plan-do-check&quot; instructional cycle for teachers and emphasizes teacher training and tracking data. Student- achievement data, not the system, drive decisions. (WFA) </li></ul><ul><li>LA: English </li></ul><ul><li>PY: 2003 </li></ul><ul><li>PT: 080 Journal Articles; 141 Reports: Descriptive </li></ul><ul><li>DE: * Academic Achievement ; * Achievement Gains ; Educational Attainment ; * Educational Improvement ; *Educationally Disadvantaged ; Elementary Secondary Education ; High Risk Students ; Instructional Effectiveness ; *Instructional Improvement ; Standards ; Student Improvement ; Teacher Student Relationship ; Underachievement </li></ul><ul><li>ID: *Texas </li></ul><ul><li>SF: ERIC, Current Index to Journals in Education (CIJE) </li></ul><ul><li>AN: EJ660840 </li></ul>Nahl LIS 601 2010
  21. 21. Exercise : ERIC Database Record Structure <ul><li>If you wanted more articles like the one in the example, which Descriptors (CV) in that record would you select to add to the search? Explain. </li></ul><ul><li>How many Descriptors (CV) are assigned to this article? </li></ul><ul><li>What is the title of the journal where this article is published? </li></ul><ul><li>What is the date of publication? </li></ul><ul><li>Why is Achievement bolded in the record? </li></ul>Nahl LIS 601 2010
  22. 22. Search Exercises <ul><li>2.5 points per exercise (10 exercises=25 points) </li></ul><ul><ul><li>Incomplete exercises do not obtain full points </li></ul></ul><ul><ul><li>Follow all instructions to obtain full points </li></ul></ul><ul><ul><li>Process is most important , answers alone are incomplete, e.g., </li></ul></ul><ul><ul><ul><li>How did you find the item and the information? </li></ul></ul></ul><ul><ul><ul><li>What specific steps did you take to locate it? </li></ul></ul></ul><ul><ul><ul><li>What specific terms did you look-up? </li></ul></ul></ul><ul><ul><ul><li>Which volumes of a large set did you consult? </li></ul></ul></ul><ul><ul><ul><li>Etc., making the details of discovery explicit </li></ul></ul></ul>Nahl LIS 601 2010
  23. 23. Grading Criteria for Search Exercises <ul><li>20% Following all instructions </li></ul><ul><li>20% Completing all assigned queries </li></ul><ul><li>40% Thoroughness of reporting search strategy process and search term selection </li></ul><ul><li>20% Evidence of concept analysis </li></ul><ul><li>100% = 25 points for 10 exercises (2.5 points per exercise of 4-8 queries) </li></ul>Nahl LIS 601 2010
  24. 24. Google Docs 1 2 3
  25. 25. Google Docs 4 5 Share your Search Exercise documents with your Instructor
  26. 26. Due Next Week <ul><li>Bring Turabian to class for an exercise </li></ul><ul><li>TEXT CHAPTER 4 </li></ul><ul><li>Handouts pp. 14-15 </li></ul><ul><li>Search Exercises pp. 7-11 ( read Ex. 1b) </li></ul><ul><li>Search Ex. 1a turn-in online in a Google Doc </li></ul>Nahl LIS 601 2010

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