Association rule learning - Revision history

en>SnazzyFiend: /* Useful Concepts */

2015-01-11T18:37:43Z

Useful Concepts

← Older revision		Revision as of 20:37, 11 January 2015
Line 1:		Line 1:
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	~~This footwear originates from Australia but has turn into pretty preferred the entire world around today~~. ~~The reason for their recognition is that quite~~ a ~~few~~ of ~~us see stars wearing them no subject their age~~. ~~However as with anything~~ at ~~all worn by celebrities the earth more than nowadays they appear at a rate.~~<br><br>~~All~~ the ~~exact same~~, if you ~~were being~~ to ~~put into action a fast appear~~ for them ~~on the web~~ you~~'d be able of acquiring a pair for your self at a fraction of the price tag that you would commonly have~~ to ~~pay out for them~~.<br><br>1 of the to ~~start with issues you ought~~ to ~~assume about when hunting at obtaining a pair~~ of ~~affordable boots from any world wide web~~ internet site is ~~that~~ the ~~value you might be currently being charged is good. Be warned you may uncover that you are in truth shopping~~ for ~~a pair of pretend or imitation boots rather~~.<br><br>~~The most powerful method of getting a pair of legitimate Ugg boots~~ is ~~as a result of seeking~~ for the ~~a lot more respectable web sites specially those that are having an close of season sale~~. ~~By means of carrying out this you~~'re a ~~great deal much more very likely~~ to ~~receive a authentic pair for a favourable selling price~~.<br><br>~~Choose treatment and search cautiously at what the website is delivering the more respectable websites will present facts as to no matter whether they're the real issue~~ or ~~not. There is in fact~~ a ~~selection~~ of internet ~~sites website presently that work~~ as ~~an affiliate for companies such~~ as ~~Ugg Australia. These internet websites have got authorization from~~ these ~~firms to promote the boots on their sites, and so you can know that you will be buying the actual thing from them~~.<br><br>~~Although you may possibly want to acquire a search at auction web-sites this kind of as eBay for acquiring a pair of~~ these ~~boots from~~. ~~It is critical that again you are mindful that not all~~ the ~~boots becoming sold~~ in ~~this way are authentic. In truth there is much possible in this article for you to be cheated~~ and ~~you stop up buying a counterfeit or imitation pair rather. If you are truly~~ not ~~sure as~~ to ~~regardless of whether the boots are first or not, then really don't buy~~ them~~.<br><br>Last of all, when you settle~~ on ~~buying~~ your ~~boots from an on the net store or auction world wide web internet site you need to check out their return/alternative policy~~. ~~You never want~~ to ~~stop up acquiring yourself caught~~ with ~~some boots that you~~ are ~~not satisfied. The moment again it would be smart to examine~~ out ~~an online store or web internet site in advance of you select to obtain a certain pair of boots to make selected that the vendor is revered~~.<br><br>~~By maintaining~~ the ~~previously mentioned guidelines in place ideally you should be equipped to make~~ a ~~more informed conclusion as to~~ the ~~place you will be purchasing your new Ugg boots from.<br><br>In case you liked this post~~ along with ~~you wish to obtain guidance with regards to [http://tinyurl~~.~~com/k7shbtq cheap uggs] generously visit our~~ own ~~web-page~~.

en>Dicklyon: /* Node-set-based Algorithms */ case norm

2014-03-05T04:39:28Z

Node-set-based Algorithms: case norm

← Older revision		Revision as of 06:39, 5 March 2014
Line 1:		Line 1:
	~~{{unreferenced\|date=January 2012}}~~
	In mathematics, '''magnitude''' is the size of a [[mathematical object]], a property by which the object can be compared as larger or smaller than other objects of the same kind. More formally, an object's magnitude is an [[order theory\|ordering]] (or ranking) of the [[class (mathematics)\|class]] of objects to which it belongs.

	~~==History==~~
	~~The Greeks distinguished between several types of magnitude,{{citation needed\|date=January 2012}} including:~~
	*Positive [[fractions]]
	*[[Line segment]]s (ordered by [[length]])
	*Plane figures (ordered by [[area]])
	*Solids (ordered by [[volume]])
	*Angles (ordered by angular magnitude)

	~~They proved~~ that ~~the first two could not be the same, or even [[isomorphic]] systems~~ of ~~magnitude~~.~~{{citation needed\|date=January 2012}} They did not consider negative magnitudes to be meaningful, and ''magnitude'' is still chiefly used in contexts in which zero is either~~ the ~~lowest size or less~~ than ~~all possible sizes.~~		This footwear originates from Australia but has turn into pretty preferred the entire world around today. The reason for their recognition is that quite a few of us see stars wearing them no subject their age. However as with anything at all worn by celebrities the earth more than nowadays they appear at a rate.<br><br>All the exact same, if you were being to put into action a fast appear for them on the web you'd be able of acquiring a pair for your self at a fraction of the price tag that you would commonly have to pay out for them.<br><br>1 of the to start with issues you ought to assume about when hunting at obtaining a pair of affordable boots from any world wide web internet site is that the value you might be currently being charged is good. Be warned you may uncover that you are in truth shopping for a pair of pretend or imitation boots rather.<br><br>The most powerful method of getting a pair of legitimate Ugg boots is as a result of seeking for the a lot more respectable web sites specially those that are having an close of season sale. By means of carrying out this you're a great deal much more very likely to receive a authentic pair for a favourable selling price.<br><br>Choose treatment and search cautiously at what the website is delivering the more respectable websites will present facts as to no matter whether they're the real issue or not. There is in fact a selection of internet sites website presently that work as an affiliate for companies such as Ugg Australia. These internet websites have got authorization from these firms to promote the boots on their sites, and so you can know that you will be buying the actual thing from them.<br><br>Although you may possibly want to acquire a search at auction web-sites this kind of as eBay for acquiring a pair of these boots from. It is critical that again you are mindful that not all the boots becoming sold in this way are authentic. In truth there is much possible in this article for you to be cheated and you stop up buying a counterfeit or imitation pair rather. If you are truly not sure as to regardless of whether the boots are first or not, then really don't buy them.<br><br>Last of all, when you settle on buying your boots from an on the net store or auction world wide web internet site you need to check out their return/alternative policy. You never want to stop up acquiring yourself caught with some boots that you are not satisfied. The moment again it would be smart to examine out an online store or web internet site in advance of you select to obtain a certain pair of boots to make selected that the vendor is revered.<br><br>By maintaining the previously mentioned guidelines in place ideally you should be equipped to make a more informed conclusion as to the place you will be purchasing your new Ugg boots from.<br><br>In case you liked this post along with you wish to obtain guidance with regards to [http://tinyurl.com/k7shbtq cheap uggs] generously visit our own web-page.

	~~==Numbers==~~
	~~{{Main\|Absolute value}}~~
	~~The magnitude of any [[number]] ''x'' is usually called its "[[absolute value]]" or "modulus", denoted by \|''x''\|~~.

	~~===Real numbers===~~
	~~The absolute value of a [[real number]] ''r'' is defined by:~~

	~~:<math> \left\| r \right\| = r, \text{ if } r \text{ ≥ } 0~~ <~~/math~~>
	:<~~math~~> ~~\left\| r \right\| = -r~~, ~~\text{~~ if ~~} r~~ < ~~0 .~~<~~/math~~>

	~~It may be thought~~ of as the ~~number's distance~~ from ~~zero on the real [[number line]]. For example,~~ the ~~absolute~~ value ~~of both 7 and −7~~ is 7.

	~~===Complex numbers===~~
	~~A [[complex number]] ''z''~~ may ~~be viewed as the position of a point ''P''~~ in a ~~2-dimensional [[Euclidean space\|space]], called the [[complex plane]]~~. The ~~absolute value or modulus~~ of ~~''z'' may be thought~~ of as ~~the distance~~ of ~~''P'' from~~ the ~~origin~~ of ~~that space~~. ~~The formula for the absolute value~~ of '~~'z''=''~~a~~''+''bi'' is similar~~ to ~~that~~ for ~~the [[Euclidean norm]] of~~ a ~~vector in a 2-dimensional [[Euclidean space]]:~~

	:<~~math~~> ~~\left\| z \right\| = \sqrt{a^2 + b^2 }~~<~~/math~~>

	~~where ''a''~~ and '~~'b'' are~~ the ~~respectively [[~~real ~~part]] and [[imaginary part]] of ''z''~~. ~~For instance, the modulus of −3 + 4<var>''i''</var>~~ is ~~<math>\sqrt{(-3)^2+4^2} = 5.</math>~~

	~~==Euclidean vectors==~~
	~~{{Main\|Euclidean norm}}~~
	~~A [[Euclidean vector]] represents the position of a point ''P''~~ in a ~~[[Euclidean space]]. Geometrically, it can be described~~ as an ~~arrow~~ from the ~~origin of the space (vector tail) to that point (vector tip). Mathematically~~, ~~a vector '''x''' in an ''n''-dimensional Euclidean space~~ can be ~~defined as an ordered list of ''n'' [[real number]]s (~~the ~~[[Cartesian coordinate]]s of ''P''): '''x''' = [''x''<sub>1</sub>, ''x''<sub>2</sub>, ..~~.~~, ''x''~~<~~sub~~>~~''n''~~<~~/sub~~>~~]. Its '''magnitude''' or '''length''' is most commonly defined~~ as ~~its [[Norm (mathematics)#Euclidean norm\|Euclidean norm]] (or Euclidean length):~~
	~~:<math>\\|\mathbf{x}\\| := \sqrt{x_1^2 + x_2^2 + \cdots + x_n^2}.</math>~~
	~~For instance, in~~ a ~~3-dimensional space, the magnitude~~ of ~~[4, 5, 6] is √(4<sup>2</sup> + 5<sup>2</sup> + 6<sup>2</sup>) = √77 or about 8~~.~~775.~~
	~~This~~ is ~~equivalent to~~ the ~~[[square root]] of the [[dot product]] of the vector by itself:~~
	~~:<math>\\|\mathbf{x}\\| := \sqrt{\mathbf{x} \cdot \mathbf{x}}~~.~~</math>~~

	~~The Euclidean norm of a vector~~ is ~~just~~ a ~~special case~~ of ~~[[Euclidean distance]]:~~ the ~~distance between its tail and its tip. Two similar notations~~ are ~~used for the Euclidean norm of a vector~~ '~~''x''':~~
	~~#<math>\left \\| \mathbf{x} \right \\|,</math>~~
	#<~~math~~>~~\left \| \mathbf{x} \right \|.~~<~~/math~~>
	~~The second notation is generally discouraged{{Weasel-inline\|{{subst:2013-10-04}}\|date=October 2013}}, because it is also used to denote the [[absolute value]] of scalars and the [[determinant]]s~~ of ~~matrices.~~

	~~==Normed vector spaces==~~
	~~{{Main\|Normed vector space}}~~

	~~By definition,~~ all ~~Euclidean vectors have a magnitude (see above). However~~, the ~~notion of magnitude cannot be applied~~ to ~~all kinds of vectors~~.

	~~A function that maps objects~~ to ~~their magnitudes is called a [[norm (mathematics)\|norm]]. A [[vector space]] endowed~~ with ~~a norm, such as the Euclidean space, is called a [[normed vector space]]. In high mathematics,~~ not ~~all vector spaces are normed~~.

	~~== Logarithmic magnitudes ==~~
	~~When comparing magnitudes,~~ it is often helpful to use a [[logarithm]]ic scale. Real-world examples include the [[loudness]] of a [[sound]] ([[decibel]]), the [[brightness]] of a [[star]], or the [[Richter magnitude scale\|Richter scale]] of earthquake intensity. Logarithmic magnitudes can be ~~negative. It is usually not meaningful~~ to ~~simply [[addition\|add]]~~ or ~~[[subtract]] them.~~

	~~=="Order of magnitude"==~~
	~~{{main\|Order of magnitude}}~~

	~~In advanced mathematics, as well as colloquially~~ in ~~popular culture, especially [[geek culture]], the phrase "order~~ of ~~magnitude" is used~~ to ~~denote~~ a ~~change in a numeric quantity, usually a measurement, by a factor~~ of ~~10;~~ that is~~, the moving of the decimal point in a number one way or the other, possibly with the addition of significant zeros~~.

	~~Occasionally~~ the ~~phrase "half an order of magnitude" is also used, generally~~ in ~~more informal contexts. Sometimes, this is used~~ to ~~denote~~ a 5 to ~~1 change, or alternatively 10~~<~~sup~~>~~1/2~~<~~/sup~~> to ~~1 (approximately 3.162~~ to ~~1).~~

	~~==See also==~~
	*[[Number sense]]

	~~==References==~~
	~~{{reflist}}~~

	[~~[Category~~:~~Elementary mathematics]~~]

en>LilHelpa: Typo fixing and general fixes using AWB

2014-01-28T12:15:29Z

Typo fixing and general fixes using AWB

← Older revision		Revision as of 14:15, 28 January 2014
Line 1:		Line 1:
			{{unreferenced\|date=January 2012}}
			In mathematics, '''magnitude''' is the size of a [[mathematical object]], a property by which the object can be compared as larger or smaller than other objects of the same kind. More formally, an object's magnitude is an [[order theory\|ordering]] (or ranking) of the [[class (mathematics)\|class]] of objects to which it belongs.

			==History==
			The Greeks distinguished between several types of magnitude,{{citation needed\|date=January 2012}} including:
			*Positive [[fractions]]
			*[[Line segment]]s (ordered by [[length]])
			*Plane figures (ordered by [[area]])
			*Solids (ordered by [[volume]])
			*Angles (ordered by angular magnitude)

	~~Jonas~~ is ~~how I~~'~~m termed but I under no circumstances truly~~ [~~http~~://~~Www~~.~~encyclopedia~~.~~com/searchresults.aspx?q~~=~~preferred preferred~~] that ~~name~~. As a ~~man what I actually like~~ is ~~karaoke~~ and ~~now I~~'~~m attempting to get paid cash with~~ it~~. I utilized to~~ be ~~unemployed but now I am~~ an ~~administrative assistant. Virgin Islands is exactly where me and my wife reside and I have almost everything~~ that ~~I have to have below~~. ~~See what is actually new on my~~ [~~http~~://~~internetsite~~.~~net~~/ ~~internet site~~] ~~here~~: ~~http~~://~~www~~.~~archiplanet~~.~~org/wiki/User~~:~~JasperY66dtzutf~~<br><br>~~Also visit my blog post~~: ~~[http~~://~~www~~.~~archiplanet~~.~~org~~/~~wiki~~/~~User~~:~~JasperY66dtzutf tienda Calvin Klein~~]		They proved that the first two could not be the same, or even [[isomorphic]] systems of magnitude.{{citation needed\|date=January 2012}} They did not consider negative magnitudes to be meaningful, and ''magnitude'' is still chiefly used in contexts in which zero is either the lowest size or less than all possible sizes.

			==Numbers==
			{{Main\|Absolute value}}
			The magnitude of any [[number]] ''x'' is usually called its "[[absolute value]]" or "modulus", denoted by \|''x''\|.

			===Real numbers===
			The absolute value of a [[real number]] ''r'' is defined by:

			:<math> \left\| r \right\| = r, \text{ if } r \text{ ≥ } 0 </math>
			:<math> \left\| r \right\| = -r, \text{ if } r < 0 .</math>

			It may be thought of as the number's distance from zero on the real [[number line]]. For example, the absolute value of both 7 and −7 is 7.

			===Complex numbers===
			A [[complex number]] ''z'' may be viewed as the position of a point ''P'' in a 2-dimensional [[Euclidean space\|space]], called the [[complex plane]]. The absolute value or modulus of ''z'' may be thought of as the distance of ''P'' from the origin of that space. The formula for the absolute value of ''z''=''a''+''bi'' is similar to that for the [[Euclidean norm]] of a vector in a 2-dimensional [[Euclidean space]]:

			:<math> \left\| z \right\| = \sqrt{a^2 + b^2 }</math>

			where ''a'' and ''b'' are the respectively [[real part]] and [[imaginary part]] of ''z''. For instance, the modulus of −3 + 4<var>''i''</var> is <math>\sqrt{(-3)^2+4^2} = 5.</math>

			==Euclidean vectors==
			{{Main\|Euclidean norm}}
			A [[Euclidean vector]] represents the position of a point ''P'' in a [[Euclidean space]]. Geometrically, it can be described as an arrow from the origin of the space (vector tail) to that point (vector tip). Mathematically, a vector '''x''' in an ''n''-dimensional Euclidean space can be defined as an ordered list of ''n'' [[real number]]s (the [[Cartesian coordinate]]s of ''P''): '''x''' = [''x''<sub>1</sub>, ''x''<sub>2</sub>, ..., ''x''<sub>''n''</sub>]. Its '''magnitude''' or '''length''' is most commonly defined as its [[Norm (mathematics)#Euclidean norm\|Euclidean norm]] (or Euclidean length):
			:<math>\\|\mathbf{x}\\| := \sqrt{x_1^2 + x_2^2 + \cdots + x_n^2}.</math>
			For instance, in a 3-dimensional space, the magnitude of [4, 5, 6] is √(4<sup>2</sup> + 5<sup>2</sup> + 6<sup>2</sup>) = √77 or about 8.775.
			This is equivalent to the [[square root]] of the [[dot product]] of the vector by itself:
			:<math>\\|\mathbf{x}\\| := \sqrt{\mathbf{x} \cdot \mathbf{x}}.</math>

			The Euclidean norm of a vector is just a special case of [[Euclidean distance]]: the distance between its tail and its tip. Two similar notations are used for the Euclidean norm of a vector '''x''':
			#<math>\left \\| \mathbf{x} \right \\|,</math>
			#<math>\left \| \mathbf{x} \right \|.</math>
			The second notation is generally discouraged{{Weasel-inline\|{{subst:2013-10-04}}\|date=October 2013}}, because it is also used to denote the [[absolute value]] of scalars and the [[determinant]]s of matrices.

			==Normed vector spaces==
			{{Main\|Normed vector space}}

			By definition, all Euclidean vectors have a magnitude (see above). However, the notion of magnitude cannot be applied to all kinds of vectors.

			A function that maps objects to their magnitudes is called a [[norm (mathematics)\|norm]]. A [[vector space]] endowed with a norm, such as the Euclidean space, is called a [[normed vector space]]. In high mathematics, not all vector spaces are normed.

			== Logarithmic magnitudes ==
			When comparing magnitudes, it is often helpful to use a [[logarithm]]ic scale. Real-world examples include the [[loudness]] of a [[sound]] ([[decibel]]), the [[brightness]] of a [[star]], or the [[Richter magnitude scale\|Richter scale]] of earthquake intensity. Logarithmic magnitudes can be negative. It is usually not meaningful to simply [[addition\|add]] or [[subtract]] them.

			=="Order of magnitude"==
			{{main\|Order of magnitude}}

			In advanced mathematics, as well as colloquially in popular culture, especially [[geek culture]], the phrase "order of magnitude" is used to denote a change in a numeric quantity, usually a measurement, by a factor of 10; that is, the moving of the decimal point in a number one way or the other, possibly with the addition of significant zeros.

			Occasionally the phrase "half an order of magnitude" is also used, generally in more informal contexts. Sometimes, this is used to denote a 5 to 1 change, or alternatively 10<sup>1/2</sup> to 1 (approximately 3.162 to 1).

			==See also==
			*[[Number sense]]

			==References==
			{{reflist}}

			[[Category:Elementary mathematics]]

124.123.136.139: /* Eclat algorithm */

2012-08-05T16:01:04Z

Eclat algorithm

New page

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