Download presentation
Presentation is loading. Please wait.
Published byDamian Strickland Modified over 8 years ago
1
Google and Beyond: Finding Information Using Search Engines, & Evaluating Your Results Elizabeth Geesey Holmes, M.A., M.S.L.I.S. Cataloging Services Librarian Alexander Campbell King Law Library University of Georgia School of Law Athens, Georgia March 2006
2
Basics of Search Engines
3
What are search engines? Term “search engine” used generically to describe both Directories and Search Engines Directories (Yahoo, Google’s directory) Links to Web sites organized by hierarchy of topics Created by human editors Cover only a tiny portion of the Web Access via browsing or searching site Meta Search Engines Send searches to multiple Search Engines at one time Search Engines (Focus will be on these) Database created by software programs Search database by keyword to find Web sites Cover larger portion of Web than Directories
4
Why use them for legal research? Material only “published” on the Web E-journals Newsletters Postings to e-discussion groups Search engines = one important tool to locate Web-based resources Useful for general Web searching
5
Meta Search Engines Do not crawl the web themselves to build databases Allow users to search multiple Search Engines at one time with one search Present results from various Search Engines together on one page
6
Dogpile (http:www.dogpile.com) (http:www.dogpile.com)
7
Dogpile sample search
8
Dogpile search results
9
Vivisimo/Clusty (http://clusty.com/) (http://clusty.com/)
10
Clusty search results display
11
Pros and Cons of Meta Search Engines Pros Search a variety of Search Engines with one query Clustering feature on Clusty Comparison tool on Dogpile Cons May time out if search processing takes to long Only retrieve the top 10- 50 hits from each Search Engine Less advanced search features Differing syntax of various Search Engines makes Boolean searching difficult
12
General Search Engines What makes one search engine’s database different from another? Contents Size Currency Ranking/relevance algorithm Three main Search Engines at this time: Google Yahoo! MSN Search
13
Basic Search Tips Use multiple Search Engines [LINK] [LINK] Use advanced search pages Single most efficient way to increase your effectiveness as a searcher Set your options Read search help and additional information pages [LINK] [LINK] Remember: Not all Web information is indexed on these Search Engines
14
The Invisible Web Info not readily indexed by Search Engines Only small portion of info posted on the Internet is indexed by Search Engines. Why? Format that Search Engines don’t recognize Site not submitted to be indexed Search Engine has chosen not to index a site Site has blocked Search Engine’s indexing software Site requires a password Information is in a database that must be queried before data can be retrieved
15
Invisible Web Example: Info in Web-accessible Databases
17
The Invisible Web: Other ways to find information Subject-based Directories Invisible Web portals Complete Planet ProFusion More information in “Sources for Further Learning” section of my paper
18
Unique Tool: Google Scholar http://scholar.google.com/ Agreements with publishers, associations, universities and others allow Google Scholar to index databases that search engine crawlers normally cannot penetrate, Covers “peer-reviewed” papers, theses, books, preprints, abstracts and technical reports.
21
Advanced Search Strategies
22
Advanced Search Pages After choosing a Search Engine go directly to the Advanced Search page [LINK] [LINK] This is the most important strategy you can use Advanced Search pages give you significantly more options Boolean searching Limiting by format, domain or date range No need to remember specific terms and commands
23
Google Advanced Search Page NOTE: YOU CAN MIX AND MATCH THE BOOLEAN SEARCHING AND PHRASE OR AND NOT AND PHRASE OR AND NOT SEARCH: Martha AND Stewart AND trial OR court OR case AND "insider trading" BUT NOT jimmy
24
Modifying a Google Advanced Search
26
Searching By Format Excellent strategy for targeting your search and returning more relevant search results Google -- PowerPoint, Word, Excel, PDF Yahoo! -- PowerPoint, Word, Excel, PDF, RSS/XML and plain text (.txt) files MSN Search – Does not have this feature
27
Searching for a PowerPoint Presentation Use Google to restrict your search to a PowerPoint presentation if you are looking for information such as: Your expert (or the opposition’s) presentation at a conference A hot topic that no one has written about yet, but that someone may have given a recent presentation on Many presentations are created in PowerPoint and posted to the Web
28
PowerPoint search on Google
29
Results of ppt search
30
Google’s HTML and PPT version of first hit
31
Audio and Visual Material: Images All three Search Engines offer image searching I recommend trying Google first Offers an Advanced Search Offers a limit by domain Indexes nearly half a million images Determines image’s content by using surrounding text, accompanying captions and file names, among other criteria
32
Image search example
33
Audio and Visual Material: Multimedia Yahoo! and Google offer video searching. Google’s is still in beta testing It can be found at: http://video.google.comhttp://video.google.com At present it only searches about 20 TV channels and videos uploaded to the site Yahoo!’s search is of video on the Web Select the “Video” tab and then select advanced search – you are taken to a customized search page to enter your search terms.
34
Video search example
35
Video search results
36
Searching for News All three Search Engines offer a News search Google’s News search Collects recent (only covers past 30 days) news stories from sources all over the world Updates continuously throughout the day Sorts results by relevance OR date/time Limit by country/state OR publication Option to use search in News Alert service
37
Getting to Google’s News Search
38
News Search Example
39
News Search Results
40
“Hidden” tools
41
Searching within your results Of the three search engines featured this handy tool is only available on Google Hidden just below visible bottom of page Useful for further narrowing relevant searches
42
Searching within results Example
45
Toolbars Google, Yahoo! MSN Search, Dogpile, and Clusty all offer a toolbar Customizable Easy to download Sit at top of browser window Advanced Searchbar (http://www.advancedsearchbar.com/) (http://www.advancedsearchbar.com/) One toolbar access to over 100 search engines
46
Google’s toolbar Search the Web using Google without going first to their Web site With the click of a button use advanced search techniques such as: Searching within a page Searching within a site Searching Images, News, Google’s Directory or Dictionary Highlight search terms Block pop-ups Fill in forms automatically
47
Highlighting terms using the toolbar
48
Getting to Google’s toolbar (1)
49
Getting to Google’s toolbar (2)
50
Google’s Synonym Feature Search for a word and its common synonyms using Basic search box Advanced Search page “find results with at least one of the words” box Enter the word you want to search preceded by the tilde [~word] ~law This retrieves sites with the words: law, laws, lawyer, lawyers, legal, attorney and regulations
51
Google’s Synonym Feature: Example Time saver!
52
Yahoo! Shortcuts
53
Assessing the Quality of Information on the Internet
54
“ So you ran a web search for it?” “Yes.” “And the word returned hundreds of references, no doubt.” “Thousands.” Kohler said. “Yours, however, contained references to Harvard, Oxford, a reputable publisher, as well as a list of related publications. As a scientist I have come to learn that information is only as valuable as its source. Your credentials seemed authentic.” Excerpt Angels & Demons, Dan Brown
55
Judging Authenticity Look for site documentation About us links View source Web address structure Ask basic questions about the source of information Who is the author?
56
Assessing Information Quality Who said, “Question Authority?” Timothy Leary? Socrates? Unitarian Universalists? Maynard James Keenan Bumper sticker?
57
Assessing Information Quality: Am I in the right place? Searching for Cases Go to the web site for the court that originally published the opinions Searching for Statutes Go to the web site for the state or federal legislature Don’t use secondary sources for material readily available online from the actual source
58
Determine Accuracy Assess objectivity How does it compare with print resources? Check for errors Verify information Check for use of common technical tricks used to make information appear to be something it is not
59
Currency Decide if timeliness is relevant Last updated?
60
Assess Completeness How comprehensive is the resource? Watch for selective fact citation Compare coverage with print resources
61
Conclusion Amount of information on the Web makes it overwhelming to locate relevant sites Learning to use the above mentioned tools and tips will make your search for information on the Web efficient and successful Consult my paper for additional tips! Please contact me with any questions: eholmes@uga.edu 706-542-5082
62
Advanced Search guide has a link to a one page cheat sheet at: www.google.com/help/cheat sheet.html www.google.com/help/cheat sheet.html
63
Clusty Help page Back
64
How to get to the Advanced Search page: Example
65
BACK
66
Google and Yahoo compared http://www.langreiter.com/exec/yahoo-vs-google.html http://www.langreiter.com/exec/yahoo-vs-google.html Back
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.