1 / 19

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

tam
Download Presentation

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

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. 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

More Related