1 / 69

Googling @ your library

Googling @ your library. NEMA 2006 Laurie Logsdon and Maggi Wiegert. A Navigation Story: Before Google Earth…. click. Biography Research:. WWMU ?. Historical Research:. WWMU ?. Literary Research:. WWMU ?.

creighton-johan
Télécharger la présentation

Googling @ your library

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. Googling @ your library NEMA 2006 Laurie Logsdon and Maggi Wiegert

  2. A Navigation Story: Before Google Earth…

  3. click

  4. Biography Research: WWMU?

  5. Historical Research: WWMU?

  6. Literary Research: WWMU?

  7. Brainchild of 2 Stanford Computer Science graduate students: Larry Page and Sergey Brin Google.com was launched in 1998 with an initial investment of $1 million, 8 employees. Brief History of Google Laurie Logsdon, Oct. 2006

  8. “Google, age 8, is pulling in $10 billion a year in revenue, is worth about $125 billion.” (Lashinsky, 88) A recent rating report shows that Google accounted for 49% of the searches performed in 2006. (Nielson Net Ratings, July 2006; http://searchenginewatch.com/showPage.html?page=2156451) Google Today Laurie Logsdon, Oct. 2006

  9. Google’s Mission “Google’s mission is to organize the world’s information and make it universally accessible and useful.” ???????????? Question: Does Google organize information--or does it just help you find stuff? Laurie Logsdon, Oct. 2006

  10. How Google Works • “98.8% of its revenues result from selling advertising.” (Miller, 14) • Similar to magazine advertising, Google attempts to increase the numbers of site visitors so they can generate more money from their advertisers. Laurie Logsdon, Oct. 2006

  11. Google’s Advertising Business (continued) • AdWords sells targeted keywords to advertisers; when users search using a keyword, the advertiser’s “sponsored listing” is displayed. If a user clicks on the listing, Google gets paid. • AdSense places small ads on non-Google websites. Google generates an ad based on the page’s content; when a visitor clicks the ad, both Google and the site owner get paid. Laurie Logsdon, Oct. 2006

  12. The Anatomy of a Search

  13. The typical Google search takes less than half a second to complete. (Miller, 17-18) • For more information on how Google works: • Google guide: How Google Works • How does Google collect and rank results? • http://www.google.com/librariancenter/articles/0512_01.html • Google’s PageRank Explained and how to make the most of it by Phil Craven

  14. How Google Builds Its Database • Most of the pages in the Google database are found by Google’s spider software. • Pages discovered by “GoogleBot” are copied onto Goggle’s document servers. • Google creates an index to stored web pages • The flaw? Pages without a fixed URL slip through the cracks Laurie Logsdon, Oct. 2006

  15. Page Ranking Components • Text analysis: font size, usage, proximity, neighboring pages • Links and link text • PageRank: web page importance (not web site) determined by counting pages linking to that page. PageRank is a numerical ranking from 0 - 10. Laurie Logsdon, Oct. 2006

  16. Navigating Google’s Home Page 1 2 4 3 • Top links to specialized searches • Search box • Click to search • Click to retrieve a single result

  17. Navigating Google’s Home Page 8 5 6 7 • Link to Advanced Search • Click to set search preferences • Link to Google’s language tools • Click to set Google as your browser home page

  18. How Google Displays its Results 1 2 3 4 • Statistics bar • Top-ranking result • Page title • Page excerpt • URL • Size • Link to cached page • Link to similar pages

  19. A cheat sheet for raising your I.Q. score* • What do you want to find? • Construct your query using as many keywords as needed. Consider the Advanced Search page. • Evaluate the matches--refine your query. • Save the information that best meets your needs. * (intelligent query) Laurie Logsdon, Oct. 2006

  20. Is it possible to use too many keywords? Google searches only the first 32 words of your query Laurie Logsdon, Oct. 2006

  21. Google is not case sensitive Laurie Logsdon, Oct. 2006

  22. Word order is important • Google weights the importance of keywords in order of appearance • first keyword is most important • second keyword next • etc. Laurie Logsdon, Oct. 2006

  23. Evaluate your results; the top results may be the same no matter what the word order. The difference is more significant as you move deeper into the result listings. (Miller, 29)

  24. “and” is assumed Laurie Logsdon, Oct. 2006

  25. OR must be capitalized • When you want to conduct an “or” search, make sure to insert it in all uppercase--or Google will ignore it as a stop word. • You may also substitute the “pipe” | for OR • The OR operator is the only Boolean operator accepted by the Google search engine. Laurie Logsdon, Oct. 2006

  26. Where IS that “pipe” key? Located just above the enter (return) key. Don’t forget to shift! Laurie Logsdon, Oct. 2006

  27. Common words are automatically excluded • Google ignores: • and • or • where • how • what • the • all other common words in your queries Laurie Logsdon, Oct. 2006

  28. So--if you want to slow the search… • Include a stop word! Laurie Logsdon, Oct. 2006

  29. Including Stop Words • You can override the stop word exclusion by telling Google that it must include specific words in the query. • Be sure to include a space before the + sign, not after it +how a search engine works Laurie Logsdon, Oct. 2006

  30. Excluding Words from Results • To exclude a word from your search, use the - operator • Include a space before the - but not after Laurie Logsdon, Oct. 2006

  31. pathfinder = 19,000,000 pathfinder -mars -nissan = 17,100,000

  32. Taking Advantage of Automatic Word Stemming • Google doesn’t let you use wildcards to indicate different word endings: book* • Google incorporates automatic word stemming: it automatically searches for all possible word variations. rain = “rain” “rained” and “rains” Laurie Logsdon, Oct. 2006

  33. Searching for Similar Words • Google lets you search for similar words by using the ~ operator • Example: ~cheap yieldsdiscount, low cost, affordable Laurie Logsdon, Oct. 2006

  34. Searching for an Exact Phrase “Googling is using the popular search engine Google.com to look up someone's name in an effort to find out more about them. You might Google your neighbor, your old college roommate, or someone you've recently met to see what information is available about them on the Internet.” “laurie logsdon” lincoln ne Laurie Logsdon, Oct. 2006

  35. “Because Google has a ranking system, there is an unsubstantiated belief that the more Google returns a person has, the more important they are. To Google someone, enter their name enclosed by quotation marks in the Google search box like this: "person's name". If you Google yourself, it is called autoGoogling or egosurfing.” (definition from Whatis.com) Laurie Logsdon, Oct. 2006

  36. Searching for Words that Don’t Appear Together • If you want to search for documents where two words don’t appear side-by-side, insert the * operator between the two keywords in your query “happy * holidays” Laurie Logsdon, Oct. 2006

  37. PDF=Adobe Portable Document Format PS=Adobe PostScript WK1, WK2, WK3, WKU=Lotus 1-2-3 LWP=Lotus WordPro MW=MacWrite XLS=Microsoft Excel PPT=Microsoft PowerPoint DOC=Microsoft Word WDB, WKS, WPS=Microsoft Works WRI=Microsoft Write RTF=Rich Text Format SWF=Shockwave Flash ANS, TXT=Text Narrow your Search to Specific File Types Laurie Logsdon, Oct. 2006

  38. biome filetype:ppt

  39. Narrowing your Search to a Specific Domain or Website • To limit your search to a specific domain, enter site:domain biome site:edu biome site:uk Laurie Logsdon, Oct. 2006

  40. Narrowing your Search to Words in the Page’s Title • Google offers two methods for restricting your search to the titles of web pages: • Single keyword: intitle:operator • Multiple keywords: allintitle:operator Laurie Logsdon, Oct. 2006

  41. Narrowing your Search to Words in the Page’s URL • Similar to the “intitle:” and “allintitle:” , you can use the following operators to restrict your search to words that appear in web page addresses. • inurl:unl • allinurl:unl library Laurie Logsdon, Oct. 2006

  42. Narrowing your Search to Words in the Page’s Body Text • You can restrict your search to body text only: • intext:lps • allintext:lps media Laurie Logsdon, Oct. 2006

  43. Narrowing your Search to Words in the Page’s Link Text • There are two more operators similar to intext, inurl, and intitle (as well as allintext, allinurl, and allintitle). They are: • inanchor:spinach • allinanchor:spinach e-coli Your search is restricted to words in the link text on a page. Laurie Logsdon, Oct. 2006

  44. Searching for a Range of Numbers • To search for pages that contain items within a numerical range: • Enter the lower number in the range followed by the …operator mystery lexile 400…900 media careers $195000...$325000 Laurie Logsdon, Oct. 2006

More Related