Detailed features of four recommended search engines.
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Google
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Alta Vista Advanced Search
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Northern Light Power
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Fast Search Advanced
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URL
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www.google.com |
http://www.altavista.com/cgi-bin/query? pg=aq&stype=stext |
http://www.northernlight.com/ power.html |
http://www.alltheweb.com/ cgi-bin/advsearch |
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Help File
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| Alta Vista Advanced Search tutorial | Northern Light Power search help | Fast Search help | |
| detailed searching instructions for Google | detailed searching instructions for Alta Vista Advanced Search | detailed searching instructions for Northern Light Power | detailed searching instructions for Fast Search Advanced |
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Phrase searching
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Yes. In advanced search, choose "find results with the exact phrase". |
Yes. Use simple quotes ("search phrase") |
Yes. Use simple quotes ("search phrase") |
Yes. In advanced search, terms in the "filter" boxes are always searched as phrases. |
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Boolean logic |
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Limited Boolean logic is available: "OR" is supported (contrary to what most tutorials say) "AND" is automatically assumed between words, thereby restricting your search Exclude words by prefixing them with the - sign [-term] In Advanced Search, Boolean logic is available in the form of: Nesting is not supported. |
Available, but only in the "Boolean query" box of the Advanced Search page. Supported operators include AND (assumed by default), OR, AND NOT, NEAR (within 10 words). Nesting is supported. |
Available from any search box. Supported operators include AND (assumed by default), OR, NOT. Nesting is supported |
In the top box, AND is assumed by default. For OR, enclose terms or phrases in parentheses; e.g. (interpreter translator) Advanced search "filter" boxes appromixates Boolean logic: |
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Requires/ Excludes
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Search terms without a specific require or exclude instruction default to "AND". Note that Google automatically ignores very frequent words, i.e. articles, prepositions from your search terms. To leave them in, prefix them with a + sign, e.g.: ["shakespeare +in love"] retrieves URLs on all three words whereas ["shakespeare in love"] disregards the "in". However, not all common words can be forced back into a query using the + sign. For instance, Google is totally defeated by the search phrase: "to be or not to be". |
Available only in Simple Search (which defaults to OR). [+term] requires that the term be present. [-term] excludes all pages where the term is present A better option is to use Boolean logic in Advanced Search. |
Search terms without a specific require or exclude instruction default to AND. [+term] requires that the term be present. [-term] excludes all pages where the term is present |
Search terms without a specific require or exclude instruction default to AND. In the top search box: [+term] requires that the term be present/ [-term] excludes all pages where the term is present |
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Sub-Searching
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No. Refine your search by adding terms to your original search. |
Yes. SORT BY box performs a sub-search. |
No. Add terms to refine your search or use Northern Light's very intuitive "Folders" to drill down on a sub-theme. |
No. Add terms to refine your search |
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Results Ranking
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| Based on a special algorithm for page popularity measured
in links to it from other pages, Google is probably the best engine at relevancy
ranking.
Google is very good at giving a ranking to official sites (to which other sites link a lot) Unless terms are preceded by a + sign, "fuzzy
AND" is invoked. Note that matching and ranking in Google are based on the "cached" version of pages that may not be the most recent version. |
By terms you specify in smaller SORT box on Advanced
screen. Dual search. "Sort" box searches on body of documents retrieved with Boolean logic in larger "Boolean expression" box on Advanced screen. Requires some getting used to but extremely powerful once you have the hang of it. |
Automatic "Fuzzy
AND". Weights results by search term sequence, left to right. Also considers the number of links to each page, somewhat like Google. You can request results to be sorted by reverse date. |
Automatic "Fuzzy AND". In Advanced Search, Should include gives higher priority to those pages containing the word or phrase. |
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Field filtering
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| link: site: |
title: url: link: host: domain: anchor: text: image: applet: |
TITLE: URL: TEXT: SORT:date sorts results by date, from newest to oldest |
Advanced Search lets you search within: text: title: link name: url: link to the url: Advanced Search lets you filter results by: domains |
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Truncation
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No, and no stemming. This means you must search plurals separately! |
Use * as a wildcard |
Use * wildcard for any ending. * wildcard may be used for any characters within a word;at least 4 other characters must precede it. Use % wildcard to allow only one character variable in a word. Also stems allowing most plurals and common endings. |
No. Enclose variants in ( ) in top box to create OR. |
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Case sensitivity
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| No. |
Yes. Upper case retrieves only matching upper case. Lower case retrieves either lower or upper case. Alta Vista is also accent and character sensitive. |
No. | No. |
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Language filtering
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| Yes. | Yes | Yes. | Yes |
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Limit by age of documents
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| In Advanced Search. | In Advanced search. | Yes, in Power Search | In Advanced Search. |
Message Board
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Date: 6 Jan 2001 13:02 Subject: cheat sheet great second belated X-mas present, thanks again! |
| What do you think? - Share your views about this article! |

