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Topic: Boolean operator

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	[No title]
		Boolean queries are rigid and are unable to rank retrieved documents according to relevance to the initial query.
		The basis of the extended Boolean model is that in a two-term query, point (1,1) represents both terms present in a document, and point (0,0) represents neither query term being present.
		The extended Boolean model extends this to the p norm model with weights on both the query and the document terms to determine the similarity between a query and a particular document.
	courses.cs.vt.edu /~cs5604/f95/art-summs/SALT83.txt (1654 words)

	Using Boolean Operators to Search AgeLine
		With the search engine for the web version of AgeLine, most of the Boolean operations are done behind the scenes or default to specific Boolean "operators." However, searchers with more complex needs should verse themselves in the basic Boolean concepts to better use the search screens and to help themselves find appropriate information more quickly.
		Boolean OR (in the form of a semicolon) is automatically added between two or more items pasted in a search box from one of the BROWSE indexes of the Title, Journal Title, Author, and Subject Search boxes.
		Boolean NOT should be used cautiously--only after a search brings up too many records and one can appropriately exclude particular words or concepts by using NOT.
	star.aarp.org /ageline/star/boolean.html (1037 words)

	CSC270 Tutorial: C++ Operators (Site not responding. Last check: 2007-10-13)
		An operator can be written as a function call.
		For BINARY operators, like +, -, *, /, the first argument (a in a+b) is always implicit.
		Above, the first argument is the class instance in which the function is executing, so "real" and "imag" are components of the first argument.
	www.dgp.toronto.edu /~jstewart/270/9798s/notes/Operators.html (117 words)

	CORBA API
		Their purpose is to distinguish extractions of the OMG IDL types: Boolean, char, and octet (C++ does not require these to be distinct types).
		The value of this operation is not guaranteed to be unique; that is, another object reference may return the same hash value.
		This operation is used by applications to determine which objects have references available via the initial references mechanism.
	e-docs.bea.com /tuxedo/tux80/cref/corba_ap.htm (5660 words)

	Composition of Boolean Operators
		A Boolean operator is one whose operands are 1s or 0s.
		The main point to keep in mind is that a trinary boolean operator can be represented by a string of eight binary digits.
		Most quaternary operators cannot be composed from a trinary and a binary operator.
	m3peeps.org /cobop.htm (1196 words)

	A Guide to the S-Lang Language: Operators
		But just because it is possible to define the action of an operator upon a data type, it does not mean that all data types support all the binary and unary operators.
		The binary operators may be grouped according to several classes: arithmetic operators, relational operators, boolean operators, and bitwise operators.
		The bitwise binary operators are currently defined for integer operands and are used for bit-level operations.
	www.jedsoft.org /slang/doc/html/slang-7.html (1424 words)

	JuriSearch - Tour and Tutorial - Boolean Searches
		The Boolean operators allow you to refine your queries to focus on more specific or more general information than may be found with a single word or phrase search.
		Boolean connectors require a word or phrase on either side of the operator.
		The And operator may be specified any one of three ways: a single space between words, the ampersand and, or the word and.
	www.jurisearch.com /tutorial/boolean.htm (628 words)

	Boolean Logic
		These Boolean operators establish a relationship between the keywords/concepts in a search and thus modify the results from that search.
		Using the operator AND between keywords will limit the results of a search because all the keywords have to be present in order for an item to be retrieved.
		Boolean operators are named after George Boole, an Englishman, who invented them as part of a system of logic in the mid-1800's.
	www.kn.pacbell.com /wired/21stcent/lbool.html (549 words)

	Boolean operations - Boolean operators - Venn Diagrams - AND OR NOT
		Boolean operations - Boolean operators - Venn Diagrams - AND OR NOT
		Because the result of the OR operation is the same as the sum of the number of items in the two sets, the sets have no items in common.
		Because the result of the OR operation is the same as the number of items in the larger set, the smaller set must be a subset of the larger.
	www.hsl.creighton.edu /hsl/Searching/Boolean_operations.html (1208 words)

	Boolean Operators (Site not responding. Last check: 2007-10-13)
		Boolean operators are a feature of many of the databases available from the Library (including the
		Boolean Operators will help you make a better search by including more items that are relevant and fewer items that are irrelevant.
		In the example on the left, set A, which is all items that contain the word "apples" is put in an "and" relationship with set B, which is all items that contain the word "oranges".
	www.csupomona.edu /~library/html/boolean_operators.html (313 words)

	Use the Library Catalog
		Operators are connecting words that specify the logical relationship between two or more keywords.
		Search terms may be combined with operators, enabling you to broaden or narrow your search.
		This operator will find records in which two or more terms are both present.
	www.lib.iastate.edu /collections/libcathelp.html (2028 words)

	Boolean Operators
		Using this operator limits the search results to those containing all the search terms that have been connected with "and." In this example, only results containing the words "small group" and "decision-making" would be returned.
		The boolean operator "not" is used to limit searches by eliminating terms from a search.
		Boolean operators can be combined in many ways and used separately or together.
	www.tarleton.edu /~library/library_module/unit4/4boolean_lm.html (337 words)

	Searching Databases Online
		The default operator for the WAIS service is OR, so a series of words searched without any boolean operators will be treated as if an OR had been inserted between each word.
		The boolean operators AND, OR, NOT, and ADJ can be used to establish logical relationships between concepts expressed in natural language in a query.
		The boolean operators must be capitalized or they are considered stopwords and ignored.
	www.access.gpo.gov /congress/cong100.shtml?wm001.html (1517 words)

	Ada Programming/Keywords/and - Wikibooks
		Shortcut operators are used to make the evaluation of parts of boolean expressions conditional: and then, or else.
		In case the final result of the evaluation is guaranteed to be the same, the compiler is allowed to use a shortcut evaluation.
		The operator and could be used with modular types to perform bitwise operations.
	en.wikibooks.org /wiki/Programming:Ada:Keywords:and (220 words)

	The Type boolean
		And boolean expressions are supposed to model logical expressions.
		is a valid boolean expression, since each of the relational operations gives a boolean result, and the those boolean results are operated on using the boolean operators to give more boolean results.
		The + operator is such an example: recall that it concatenates strings, and is the integer addition operator.
	www.dgp.toronto.edu /~trendall/course/108/lectures/L05node3.html (462 words)

	CompletePlanet - How to Search CompletePlanet
		Natural queries have a stoplist applied and all keywords are treated equivalently (using the OR or AND Boolean operator or a phrase based upon your choice).
		If Boolean operators appear in quotes or as part of a quoted phrase, they will be interpreted as a search term or part of a search term rather than as a Boolean operator.
		If Boolean operators appear in quotes or as part of a quoted phrase, they will be interpreted as a search term or part of a search term and not as a Boolean operator.
	aip.completeplanet.com /aip-engines/help/help_howto.jsp (1587 words)

	ALA New Members Round Table
		These operators are not employed directly by the user within the search field boxes, but rather indirectly, via the "Boolean Operator" box at the bottom of the search screen.
		With the Boolean Operator box left unchecked (the default position), the operator is "AND", both within fields and between fields.
		Note: Boolean operators should never be written into the search statement in linguistic form.
	www.lib.lsu.edu /ALA/nmrt/help.htm (1236 words)

	Help, Boolean Searching
		Boolean searching allows you to combine search terms using the three Boolean operators AND, OR and NOT.
		To execute a Boolean search, enter the required terms separated by the Boolean operators you wish to use.
		If you wish to search for the word 'not' in a phrase (and therefore do not want it to be a Boolean operator) you should type the phrase into the search box and enclose it in double quotes.
	aabd.chadwyck.com /help/hlp_bool.htm (284 words)

	Boolean Operators and Truncation Searching (Site not responding. Last check: 2007-10-13)
		Boolean Operators allow us to combine search terms to broaden or narrow our search by using the operator words AND, OR, NOT.
		The Boolean OR operator is used when we wish to broaden a search.
		Boolean operators are very useful tools for database searching.
	lib.northern.edu /infolit/tablesversion/lessons/lesson4/boolean.htm (750 words)

	Introduction to JavaScript : JavaScript Operators
		In this operator, if the first parameter is true, the result is the second parameter, and if the first parameter is false, the result is the third parameter.
		Note that the assignment operators, like an ordinary assignment, can only be used with variables on the left, which are changed to the result of the operation.
		The prefix and postfix increment/decrement operators have the same effect on their operand, but the assignment will take place before or after, respectively, the variable is used in an enclosing statement.
	www.amherst.edu /~aanderson/javascript/operators (1151 words)

	WVU College of Law - George R. Farmer, Jr. Law Library - Boolean Logic
		Developed by English mathematician George Boole in 1854, Boolean algebra was designed as a symbolic system of mathematical logic to represent relationships between entities.
		Using Boolean operators in database searching can improve search results, but computers depend on human input and will produce results only as good as the search query entered.
		When Boolean operators are combined, search queries become more complex and the search results may become unwieldy if the following factors are not considered.
	www.wvu.edu /~law/library/guides/boolean.htm (798 words)

	Getting Started with Buildtime
		Use this operator for querying whether a container member is not set.
		Operators shown on the same line have the same precedence.
		All operators are left-associative, except for the unary minus and the "NOT" operator.
	www-306.ibm.com /software/integration/mqfamily/library/manualsa/workflow322/fmcu0m69.htm (882 words)

	Chromumll Tutorial: Operators
		Note: Chromumll uses a ternary/equivalence/boolean operator syntax which is similar to that in C and Java.
		Each such ternary operator allows one of two values to be selected based on a Boolean expression.
		A Boolean expression is any collection of values that can ultimately be evaluated to be true or false.
	www.thematic.com /chromumll/reference/language/operators.html (481 words)

	Foundation Grants to Individuals on CD-ROM Guided Tour
		Boolean searching allows you to combine different search terms in various ways, enlarging or limiting search results sets.
		In Boolean logic, OR is the operator used to broaden your searches by letting you search for multiple terms simultaneously.
		Although OR is the default operator that appears when you select more than one search term, you can simply delete it and type AND or NOT to alter your search.
	fdncenter.org /marketplace/fgti_tour/4search2.html (160 words)

	Vietnam Yesterday & Today: Boolean Searching
		The concept of Boolean searching is the combining of two terms together connected by a Boolean operator--the words and, or, not.
		The Boolean operator and is used to narrow a search.
		In that case, the or operator is used to make sure that all relevant articles are caught in the search.
	servercc.oakton.edu /~wittman/boolean.htm (444 words)

	BrightPlanet® — Guide to Effective Searching of the Internet
		Boolean algebra is also of prime importance to the design of modern computers.
		Boolean techniques give you the power to narrow your search to a reasonable number of potentially useful documents thereby increasing your likelihood of success.
		The AND operator is a binary one; that is, it operates on the terms or phrases on both sides of it.
	www.brightplanet.com /deepcontent/tutorials/search/part4.asp (1365 words)

	AMIDiag - Industry Standard PC Diagnostics
		Since the operating environment and varying conditions affect access time, this is usually given as an average.
		DMI is hardware and operating system-independent, independent of specific management protocols, easy for vendors to adopt, mappable to existing management protocols such as the Simple Network Management Protocol (SNMP) and used on network and non-network computers.
		Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.
	www.amidiag.com /support/glossary.cfm (11674 words)

	Combining Region and Table Filters (Site not responding. Last check: 2007-10-13)
		This document discusses the conventions for combining region and table filters, especially with regards to the comma operator.
		In that scenario, the or operator was implied by:
		Better still, we recommend that the comma operator be avoided in such cases in favor of an explicit boolean operator.
	hea-www.harvard.edu /RD/funtools/combo.html (309 words)

	What is Boolean expression? - A Word Definition From the Webopedia Computer Dictionary
		All expressions that contain relational operators, such as the less than sign (<), are Boolean.
		The operators -- AND, OR, XOR, NOR, and NOT -- are Boolean operators.
		Boolean expressions are also called comparison expressions, conditional expressions, and relational expressions.
	www.webopedia.com /TERM/B/Boolean_expression.html (94 words)

	Boolean Operators (Site not responding. Last check: 2007-10-13)
		All online catalogues and article indexes use Boolean operators to combine keywords and search concepts in their search commands.
		The three basic Boolean operators are AND, OR, and NOT.
		However, when you combine them as one search using the AND Boolean operator, as in the search for "stress and health," you find that the database provides only 72 citations, each of which will include both keywords.
	web.mala.bc.ca /library/researchskills/boolean.htm (320 words)

	Boolean Searching on the Internet (Site not responding. Last check: 2007-10-13)
		Boolean logic refers to the logical relationship among search terms, and is named for the British-born Irish mathematician George Boole.
		A proximity operator determines the closeness of terms within the text of a source document.
		Usually the logical operator is expressed with substitute language rather than with the operator itself.
	library.albany.edu /internet/boolean.html (958 words)

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