Week 4 LIBR 250

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Week 4 LIBR 250

  1. 1. WEEK 4 LIBR 250
  2. 2. TODAY Focus on finding information Understanding the difference between keyword and natural language databases Limitations of Google Using library databases Evaluating and narrowing search results from library databases
  3. 3. GOOGLE Why do you like it? When is it useful? What are its limitations? How far will a Google search take you? Assignment: Write a paper on any aspect of the recent government shutdown. The paper must be 5-7 pages and use a variety of sources including at least one scholarly article
  4. 4. KEYWORD VS. NATURAL LANGUAGE Which is better? Why or why not? Is natural language always easier? Is the precision of keyword searching always useful? Does it vary in terms of what stage of the research process you are?
  5. 5. BOOLEAN LOGIC AND KEYWORD SEARCH Looking for words in the articles that make up the database Keyword searched only retrieve the articles that have the specific words for which you are looking Need to join terms with connectors in a (Boolean) logical way Literal Full text Efficient Used in an evolutionary way: As you learn more about your topic you continue to search on the new terms and concepts you pick up
  6. 6. CONNECTORS And: When two or more terms are joined with AND the database finds only articles that have all of those terms Or: When two or more terms are joined with OR the database finds all of the articles that have any one of those terms Not: When terms are joined with NOT the database finds articles that have the first time only and rejects the ones that have the second term (even if they have the first one)
  7. 7. EVALUATING/NARROWING INFORMATION YOU RETRIEVE Information in databases can be evaluated and narrowed by: • • • Date (currentness or age) Type of information (academic, magazine, trade publication, newspaper) Relevance
  8. 8. BRINGING IT ALL TOGETHER Week 3-4 exercise Take a BROAD topic Explore the topic while coming up with narrow topics

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