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INIS Training Seminar 23-27 November 2009 Information Retrieval and Query Formulation

INIS Training Seminar 23-27 November 2009 Information Retrieval and Query Formulation. Christine Krieger-Levine Content Management Group INIS Unit, INIS&NKM Section, IAEA. Information Retrieval. Planning a Search Composing a Search Formulating a Query

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INIS Training Seminar 23-27 November 2009 Information Retrieval and Query Formulation

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  1. INIS Training Seminar23-27 November 2009Information Retrieval and Query Formulation Christine Krieger-Levine Content Management Group INIS Unit, INIS&NKM Section, IAEA INIS Training Seminar

  2. Information Retrieval • Planning a Search • Composing a Search • Formulating a Query • Translate keywords in precise search terms • Data Base Fields • Search Syntax (understand search tools) • Reviewing and Evaluating • Search Strategy • Refining the Request • Combining Queries • Using the Search Results INIS Training Seminar

  3. Planning a Search Develop your search query prior to searching! • Define the information you are seeking • Identify the different concepts INIS Training Seminar

  4. Planning a Search: Example • Topic: IAEA information on HLW management published after 2005 • Concept A: waste management • Concept B: high-level waste • Concept C: IAEA • Concept D: >2005 INIS Training Seminar

  5. Formulating a QueryTranslate keywords in precise search terms considering various ways to express a concept (synonymous search terms like plurals, alternative ways of spelling, acronyms, etc.) • Concept A: manag*, vitrification • Concept B: high-level waste*, HLW • Concept C: IAEA, International Atomic Energy Agency • Concept D: >2005 INIS Training Seminar

  6. Formulating a QuerySearching in specific fields INIS Data Base Fields • Numerical • Free Text • Controlled Vocabulary INIS Training Seminar

  7. Formulating a Query INIS Data Base Fields • Numerical • Year of publication (PY) • Reference Number (RN) • Free Text • Title (TI) • Authors (AU) • Source (SO) • Abstract (AB) INIS Training Seminar

  8. Formulating a Query INIS Data Base Fields • Controlled Vocabulary • Language (LA) • Country of Input (CO) • Descriptors (DE) • Indexer-assigned descriptors (DEI) • Computer-upposted descriptors (DEC) INIS Training Seminar

  9. Formulating a Query Searching in INIS Data Base Fields: example • high-level radioactive wastes in DE • IAEA in SO • PY>2005 INIS Training Seminar

  10. Formulating a Query Search Syntax • Boolean Operators • OR, AND, NOT • Text Operators • any(includes any), all(includes all), in order, phrase (BASIS+) • with, near (WinSPIRS) • Numeric Operators • equal, more, less, moreor equal, less or equal • Truncation, Wildcard • *, ? INIS Training Seminar

  11. Formulating a Query Apply basic search logic: example • manag* in any fieldOR vitrification inany field AND • high-level waste*inany fieldOR HLW inany fieldOR high-level radioactive wastesin DE AND • IAEA in SOOR International Atomic Energy Agencyin SO AND • PY>2005 INIS Training Seminar

  12. Formulating a Query Connection of search terms INIS Training Seminar

  13. Reviewing and Evaluating • Precision – number of relevant documents retrieved divided by total number of retrieved documents • Recall – number of relevant documents retrieved divided by total number of relevant documents contained in the DB • Ideal – high precision and high recall (all and only relevant documents retrieved) • Optimum – practical balance between precision and recall INIS Training Seminar

  14. Search Strategy Refining the Request • Start with a broader search and narrow it down if necessary • Start with simple queries and combine them to be more specific • Explore various ways for search • Save the query for future reference INIS Training Seminar

  15. Combining Queries • Queries referenced by numbers preceded by # sign • Boolean operators (OR, AND, NOT) • AND and NOT limit search results • OR complements search results • Brackets used to avoid ambiguity INIS Training Seminar

  16. Descriptor Search • Concept oriented search • Higher focus on the subject • Higher precision • Details may be missed • Recall may suffer INIS Training Seminar

  17. Using the Search Results • Storing query • run/delete query • notification • e-mail query • Selecting relevant records • select format • printing • saving • Downloading and/or ordering original documents INIS Training Seminar

  18. Objective oriented retrieval strategies • PRECISION • Search by descriptors • Complement by free-text search • RECALL • Search across all fields • Use related terms in descriptors • Use OR rather than AND in queries • OPTIMUM • Use your judgement – any combination of mentioned above • Limit using a variety of free text statements INIS Training Seminar

  19. Information Retrieval On-line Help, Manuals, etc. • WinSPIRS • On-line Help: Search Syntax and INIS specific Guide • WinSPIRS User’s Manual • Internet • On-line Help: Tool Tips • User Manual (En, Jp) • Tutorial • Quick Reference Guide (Ar, En, Ja, Pt, Es) • INIS Glossary • Search Assistance INIS Training Seminar

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