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Principles Of Searching Reading Discussion


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Principles Of Searching Reading Discussion

  1. 1. “The Searching Quagmire”<br />Paid placement: advertising that is outside of the editorial content of the search results<br />Paid inclusion: advertising within the editorial content of the search results<br />Paid submission is the practice of requiring payment to speed up the processing of a listing <br />Spamdexing: manipulation of metatags and text by Webmasters<br />
  2. 2. Misconceptions That Lead us Astray<br />The whole Web is crawled<br />All search engines search the same set of Web pages<br />AND should find more results than OR<br />All search engines work the same<br />Search engines search the actual page at the time of searching<br />“Advanced” features (i.e. Boolean queries), are the best way to search and will get you everything that is relevant to your question<br />Directories and search engines are the same thing<br />
  3. 3. How do search engines determine ranking?<br />Popularity of the site (indicated by number of links to it)<br />Link analysis (if more pages point to a site, then those pointers represent “selections” by real experts on a topic)<br />Collaborative filtering (the choices others with the same query have made)<br />Exceptions to popularity (new sites have fewer links to them)<br />Boosting ranking by type of site<br />Sources of search engine revenues (pay-for-ranking)<br />Information skewing <br />Metadata and classification schemes<br />Context and personalization<br />
  4. 4. What should we do?<br />Know the identity of the metadata source<br />Identify that a source can be trusted<br />Monitor and publicize the behavior of Web information or metadata sources over time<br />
  5. 5. Establishing and Maintaining Trust in Online Systems<br />Trust and quality are tightly connected<br />Consumers want information that is accurate, relevant, and timely<br />Data is constantly changing<br />How do you know if content is trustworthy?<br />Look for spelling and grammar errors<br />Look for citations of facts and statistics<br />
  6. 6. Continued…<br />Web sites should be easy to navigate<br />Information should download quickly<br />Author should be clearly identified<br />Include an e-mail link to the Webmaster<br />Think about sponsorship<br />.gov, .edu, .com<br />Links should not be out of date<br />Currency is one of the most important factors in information quality<br />
  7. 7. Continued …<br />Look at the stated goals and objectives of the website<br />Stability/staying power<br />The style should be consistent with the subject content<br />
  8. 8. Discussion Questions<br />How do you judge a website? What is the most important criteria to you? What is the least important?<br />Does your judgment change when the website is academic? Government? Commercial?<br />How much do you trust the information a search engine gives you? Does it matter to you, whether it is skewed or not?<br />