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Internet Search Strategies USCS | An Adventure of the American Mind | Revised: 05/26/04.

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Presentation on theme: "Internet Search Strategies USCS | An Adventure of the American Mind | Revised: 05/26/04."— Presentation transcript:

1 Internet Search Strategies USCS | An Adventure of the American Mind | Revised: 05/26/04

2 Ask: What do I want to do? Browse? Locate a specific piece of information? Retrieve everything I can on the subject?

3 Your answer will determine your strategy. Browse? Browse? Locate a specific piece of information? Locate a specific piece of information? Retrieve everything I can on the subject? Retrieve everything I can on the subject? Use a subject directory or a mega/meta-search engine Use a subject directory or a mega/meta-search engine Go to a major search engine or a specialized database Go to a major search engine or a specialized database Try the same search on several engines and use resources off the web too Try the same search on several engines and use resources off the web too

4 SEARCH ENGINES EXAMPLES Created by computer robots or spiders, which travel the Web on a regular basis gathering and indexing information. Created by computer robots or spiders, which travel the Web on a regular basis gathering and indexing information. Collected information is searched with keywords or phrases. Collected information is searched with keywords or phrases. No browsing or subject categories. No browsing or subject categories. Cover a much larger part of the Web than the subject directories. Cover a much larger part of the Web than the subject directories. Has features to narrow and refine a search. Has features to narrow and refine a search. Alta Vista Alta Vista Google AlltheWeb Excite Hotbot Lycos GoogleAlltheWebExciteHotbotLycos Alta VistaGoogleAlltheWebExciteHotbotLycos

5 SUBJECT DIRECTORIES SUBJECT DIRECTORIESEXAMPLES Created and maintained by human editors who review and select sites based on some predetermined criteria. Created and maintained by human editors who review and select sites based on some predetermined criteria. Arranged in hierarchical subject categories and sub-categories. Arranged in hierarchical subject categories and sub-categories. Does not search text, but rather the title and description of the site. Does not search text, but rather the title and description of the site. Often indexes only the home page or top level pages of a site. Often indexes only the home page or top level pages of a site. Best for browsing or searching using general terms. Best for browsing or searching using general terms. Good source for popular topics, organizations, commercial sites and products. Good source for popular topics, organizations, commercial sites and products. Yahoo! About.com Beaucoup BeaucoupBeaucoup CompletePlanet CompletePlanetCompletePlanet LookSmart LookSmartLookSmart Lycos LycosLycos Open Directory Project Open Directory Project Academic Info Academic Info Infomine Librarian's Index Librarian's Index

6 META-SEARCH ENGINES EXAMPLES EXAMPLES Sends your search query to several individual search engines at one time and compiles the results. Sends your search query to several individual search engines at one time and compiles the results. Useful for simple searches and determining which search engine to use. Useful for simple searches and determining which search engine to use. Typically they catch only about 10% of search results in any of the search engines they visit. Typically they catch only about 10% of search results in any of the search engines they visit. Metacrawler IXQuick Dogpile CNET:Search Metor Profusion Vivisimo

7 SPECIALIZED DATABASES EXAMPLES The "invisible web," databases, such as those maintained by academic institutions and government agencies. The "invisible web," databases, such as those maintained by academic institutions and government agencies. High quality information sites. High quality information sites. Database content is not indexed by general search tools. Database content is not indexed by general search tools. Uses its own search box into the contents of the database. Uses its own search box into the contents of the database. Some databases are subscriptions and available only to authorized users with a password or some are only available in a library because license agreement does not allow off-site users. Some databases are subscriptions and available only to authorized users with a password or some are only available in a library because license agreement does not allow off-site users. FirstGov MN West MN West Databases InvisibleWeb.co mInvisibleWeb.co m OR InvisibleWeb.co m Invisible-Web.net Internet Movie Database Internet Movie Database

8 Tips for General Searching My Plump Starfish Quickly Lowered Lincolns Tie My Plump Starfish Quickly Lowered Lincolns Tie My Plump Starfish Quickly Lowered Lincolns Tie My Plump Starfish Quickly Lowered Lincolns Tie (-) (+) +meat -potatoes, +saturn –car * librar* returns library, libraries, librarian, etc. colo*r returns color (American spelling) and colour (British spelling) "bye bye miss american pie" president retrieves both president and Presidentpresident retrieves both president and President If you have a web page and would like to know who is linking to it, EXAMPLE: link:www.memory.loc.gov/If you have a web page and would like to know who is linking to it, EXAMPLE: link:www.memory.loc.gov/ Searching for a keyword in the title field, rather than as a keyword alone, will very likely produce more relevant responses, EXAMPLE: title:"web search tutorial"Searching for a keyword in the title field, rather than as a keyword alone, will very likely produce more relevant responses, EXAMPLE: title:"web search tutorial"

9 More on Field Searching Field searching allows you to specify exactly where you want the search engine to look in the Web document. Field searching allows you to specify exactly where you want the search engine to look in the Web document. Major fields of a webpage include: Major fields of a webpage include: Title Title Link Link Host (or Site) Host (or Site) URL URL Domain Domain

10 HOST (OR SITE) SEARCHING HOST (OR SITE) SEARCHING If you are seeking information that resides on a specific computer or server, you can narrow your search with a "host" or "site" query, EXAMPLE: host:www.sc.edu returns pages hosted at the University of South Carolina. URL SEARCHING URL SEARCHING If you are seeking a specific file, and that file's name is part of the host site's URL, you may find it more quickly by choosing a URL search, EXAMPLE: url:bck2skol returns sites in which the filename, bck2skol, incorporated into the URL.

11 DOMAIN SEARCHING DOMAIN SEARCHING edu -- educational site edu -- educational site com -- commercial business site com -- commercial business site gov -- U.S. governmental/non-military site gov -- U.S. governmental/non-military site mil -- U.S. military sites and agencies mil -- U.S. military sites and agencies net -- networks, internet service providers, organizations net -- networks, internet service providers, organizations org -- U.S. non-profit organizations and others org -- U.S. non-profit organizations and others EXAMPLE: domain:edu AND "On the Origin of Species" AND Darwin AND paleontology

12 If you are seeking information from a particular international domain, you may choose to search the domain geographically using the two-letter country code. EXAMPLE: domain:UK AND "Edward de Vere 17th Earl of Oxford" which limits your search to sites in the United Kingdom dealing with the Shakespearean authorship question.

13 Other searchable fields include anchor, applet, object, text, language, sound, pictures, and date. IMAGE SEARCHING IMAGE SEARCHING If you want to find a particular image on the web, you may choose an IMAGE search. You will need to specify the image by name, which works well if the name is part of the image file name. If not, you may miss that particular image altogether, EXAMPLE: IMAGE:bones.gif

14 Tips for Boolean Searching Boolean Operators Boolean Operators OR, | solar OR system, solar|system AND, & space AND station, space & station NOT, !, ~ Washington NOT George AND NOT, ANDNOT pepsi AND NOT coke

15 Tips for Boolean Searching, contd Always enclose OR statements in parentheses EXAMPLE: Yosemite (campgrounds OR reservations) Always enclose OR statements in parentheses EXAMPLE: Yosemite (campgrounds OR reservations) Always use CAPS when typing Boolean operators in your search statements. EXAMPLE: "immune system" AND homeopathic (medicine OR remedy) Always use CAPS when typing Boolean operators in your search statements. EXAMPLE: "immune system" AND homeopathic (medicine OR remedy)

16 Proximity Operators NEAR NEAR The NEAR operator allows you to search for terms situated within a specified distance of each other in any order, EXAMPLE: phylogeny NEAR ontogeny ADJ (adjacent to) ADJ (adjacent to) Even fewer search engines accept ADJ (adjacent to). ADJ works as a phrase except that the two terms, which must appear adjacent to each other in the webpage, can appear in any order, EXAMPLE: Ernest ADJ Hemingway

17 Proximity Operators, contd SAME and FBY SAME and FBY SAME (keywords found in the same field) and FBY (followed by), are used as advanced searching techniques in library and other specialized databases that contain bibliographic citations or references to journal articles, but are not yet employed by search engines. SAME (keywords found in the same field) and FBY (followed by), are used as advanced searching techniques in library and other specialized databases that contain bibliographic citations or references to journal articles, but are not yet employed by search engines.

18 More Advice On Searching Know the default (basic) settings your search engine uses (OR or AND). This will have an effect on how you configure your search statement because, if you don't use any signs (+, - " "), the engine will default to its own settings. Know the default (basic) settings your search engine uses (OR or AND). This will have an effect on how you configure your search statement because, if you don't use any signs (+, - " "), the engine will default to its own settings. Do not put a space between a + or - sign and the keyword. Do not put a space between a + or - sign and the keyword. Do NOT put quotation marks around a single word. Do NOT put quotation marks around a single word. When entering a string of several words, put your most important keywords first When entering a string of several words, put your most important keywords first Combine phrases with keywords, using the double quotes and the plus (+) and/or minus (-) signs. EXAMPLE:+cowboys +"wild west" -football - dallas Combine phrases with keywords, using the double quotes and the plus (+) and/or minus (-) signs. EXAMPLE:+cowboys +"wild west" -football - dallas

19 More Advice On Searching, contd When searching for a phrase alone, the +sign is not necessary. When searching for a phrase alone, the +sign is not necessary. When searching within a document for the location of your keyword(s), use the "find" command on that page. When searching within a document for the location of your keyword(s), use the "find" command on that page. Know whether or not the search engine you are using maintains a STOP WORD list. These words are often ignored when keyed as search terms, but or a + in front may make them searchable. Examples: a, about, an, and, are, as, at, be, by, from, how, i, in, is, it, of, on, or, that, the, this, to, we, what, when, where, which, with, etc. Know whether or not the search engine you are using maintains a STOP WORD list. These words are often ignored when keyed as search terms, but or a + in front may make them searchable. Examples: a, about, an, and, are, as, at, be, by, from, how, i, in, is, it, of, on, or, that, the, this, to, we, what, when, where, which, with, etc.

20 Bibliography Barker, Joe. "Finding Information on the Internet: A Tutorial " University of California, Berkeley. 09 Sep. 2003 Barker, Joe. "Finding Information on the Internet: A Tutorial " University of California, Berkeley. 09 Sep. 2003 Chamberlain, Ellen. Bare Bones 101: A Basic Tutorial On Searching the Web University of South Carolina, Beaufort. 09 Sep. 2003 Chamberlain, Ellen. Bare Bones 101: A Basic Tutorial On Searching the Web University of South Carolina, Beaufort. 09 Sep. 2003 Dodge, Bernie. Seven Tips Toward Better Searching 09 Sep. 2003 Dodge, Bernie. Seven Tips Toward Better Searching 09 Sep. 2003 Internet Search Memorial University of Newfoundland. 09 Sept 2003 Internet Search Memorial University of Newfoundland. 09 Sept 2003

21 Bibliography Internet Search Tools Los Angeles County Office of Education. 09 Sept. 2003 Internet Search Tools Los Angeles County Office of Education. 09 Sept. 2003 Levine, Allen. How To Be a WebHound Maricopa Center for Learning and Instruction. 09 Sep. 2003 Levine, Allen. How To Be a WebHound Maricopa Center for Learning and Instruction. 09 Sep. 2003 Smith, Richard J. Web Search Cheat Sheet TriPath Network and Access Expansion Project. 09 Sept 2003 Smith, Richard J. Web Search Cheat Sheet TriPath Network and Access Expansion Project. 09 Sept 2003 Disclaimer: the content on this page has been taken directly from the above sources Disclaimer: the content on this page has been taken directly from the above sources


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