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Topic: Accuracy

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	Accuracy and precision article - Accuracy and precision science engineering industry statistics arrows bullseye ... (Site not responding. Last check: 2007-11-07)
		Accuracy describes the closeness of arrows to the bullseye at the target center.
		The accuracy and precision of a measurement process is usually established by repeatedly measuring some traceable reference standard.
		Accuracy is characterised as the difference between the mean of the measurements and the reference value, the bias.
	www.what-means.com /encyclopedia/Accuracy (515 words)

	Wikipedia:Accuracy dispute - Wikipedia, the free encyclopedia
		The factual accuracy of this article is disputed.
		The accuracy of an article may be a cause for concern if:
		A related collaboration mechanism is concerned with disputed statements.
	en.wikipedia.org /wiki/Wikipedia:Accuracy_dispute (1803 words)

	GPS Accuracy
		Alternatively, the accuracy may be described at the 95th percentile (95 percent of the data is better than the specification).
		Watch for accuracy claims that require the purchase of upgrades at additional cost since it is quite common that the standard system may have a lirnited accuracy.
		The degradation of accuracy with distance is known as spatial decorrelation.
	www.romdas.com /technical/gps/gps-acc.htm (1401 words)

	Bias in Classification Accuracy Assessment (Site not responding. Last check: 2007-11-07)
		The overall classification accuracy can be computed as the total number of correct class predictions (the sum of the diagonal cells) divided by the total number of cells.
		Here is why: three crucial assumptions in classification accuracy assessment are: 1) that the reference data are truly representative of the entire classification (unlikely), 2) the reference data and classified image are perfectly co-registered (impossible), and 3) there is no error in the reference data (unlikely).
		Because of the positional uncertainty inherent in rectified images, a common approach for reference data is to sample the coordinates of the center pixel of a 3 by 3 group of pixels belonging to the same class.
	nrm.salrm.uaf.edu /~dverbyla/online/errormatrix.html (1982 words)

	Error, Accuracy, and Precision
		Accuracy is the degree to which information on a map or in a digital database matches true or accepted values.
		Accuracy is an issue pertaining to the quality of data and the number of errors contained in a dataset or map.
		Accuracy and precision are a function of the scale at which a map (paper or digital) was created.
	www.forestry.umt.edu /academics/courses/FOR503/GIS_Errors.htm (4427 words)

	Mainpage (Site not responding. Last check: 2007-11-07)
		The accuracy of rotary encoders is influenced mainly by:
		The accuracy of the absolute position values from absolute rotary encoders is given in the specifications for each model.
		The above accuracy data refer to incremental measuring signals at an ambient temperature of 20 °C (68 °F) and at slow speed.
	www.heidenhain.com /phaise2/inca.html (177 words)

	Inventory Accuracy Glossary
		Inventory accuracy is the consistency to which the data in your inventory system is in agreement with the actual inventory in your supply chain.
		Accuracy audit—a periodic verification of the accuracy of inventory by using a sampling of inventory data and physical counts to determine correctness.
		Accuracy audits can be used as a replacement for the annual physical inventory for financial accounting purposes.
	www.accuracybook.com /glossary.htm (10010 words)

	What's the Difference Between Accuracy and Precision? (Site not responding. Last check: 2007-11-07)
		Because GPS manufacturers routinely refer to a GPS receiver's accuracy in technical specifications, it's important to understand what helps determine the accuracy level of a GPS receiver as well as the differences between accuracy and precision.
		The known position often is referred to as the "true position." Accuracy compares different measuring devices to a true position, and hence to one another.
		Accuracy and precision also can be determined in terms of the WGS 1984 geodetic reference system.
	www.geoplace.com /gw/2000/1000/1000gps.asp (937 words)

	Map Accuracy Standards
		As applied to the USGS 7.5-minute quadrangle topographic map, the horizontal accuracy standard requires that the positions of 90 percent of all points tested must be accurate within 1/50th of an inch (0.05 centimeters) on the map.
		Vertical accuracy, as applied to contour maps on all publication scales, shall be such that not more than 10 percent of the elevations tested shall be in error by more than one-half the contour interval.
		The accuracy of any map may be tested by comparing the positions of points whose locations or elevations are shown upon it with corresponding positions as determined by surveys of a higher accuracy.
	erg.usgs.gov /isb/pubs/factsheets/fs17199.html (1329 words)

	Accuracy
		The most straightforward method for evaluating concept accuracy in this setting is to compare (the normal form of) the update produced by the grammar with (the normal form of) the annotated update.
		Since semantic analysis is the input for the dialogue manager, we have measured concept accuracy in terms of a simplified version of the update language.
		Semantic accuracy is given in table 5 according to four different definitions.
	odur.let.rug.nl /vannoord/papers/nle/node39.html (478 words)

	Article - Describing Compounder Accuracy
		Suppose the accuracy of a compounder was described as ±5% or ±10%.
		If the accuracy statement is intended to reflect typical performance, it represents the performance of across a large pool of compounders.
		Thus verification that an accuracy statement is met should be based on a measurement method whose error is considerable less than the compounder accuracy or the estimate of compounder accuracy should be corrected to account for measurement error.
	www.variation.com /techlib/vr-2.html (774 words)

	WHAT IS THE DIFFERENCE BETWEEN ACCURACY AND PRECISION? (Site not responding. Last check: 2007-11-07)
		Accuracy is defined as, "The ability of a measurement to match the actual value of the quantity being measured".
		The goal of any meteorological instrument is to have high accuracy (sensor matching reality as close as possible) and to also have a high precision (being able to consistently replicate results and to measure with as many significant digits as appropriately possible).
		Meteorological instruments, including radar, need to be calibrated in order that they sustain high accuracy and high precision.
	www.theweatherprediction.com /habyhints/246 (478 words)

	Plain English About Information Quality: Defining and Measuring Accuracy
		Accuracy is one of the most fundamental and important of all IQ characteristics.
		Accuracy of nearly all business attributes, such as person name, birth date and marital status, cannot be measured electronically with software.
		One technique for attempting to measure "accuracy" is to compare data to other reference data, such as postal address or change of address data, or other transaction data collected by third-party information sources.
	www.dmreview.com /article_sub.cfm?articleId=6954 (1347 words)

	Map Accuracy (Site not responding. Last check: 2007-11-07)
		Answer: it is difficult to judge what accuracy means without understanding the particular map and its intended use; that is one reason why we spent the first 1/3 of the semester understanding map fundamentals.
		Accuracy is how close a representation comes to the true value being represented and precision is the degree of reproducibility of a measurement; that is the maximum possible error of the measurement.
		On a 1:24000 topo map up to 10 percent of well defined points can be greater than 1/30th of an inch away from where they should actually be on the map up to 10 percent of elevations can be more than 1/2 the contour interval away from where they should actually be on the map.
	www.lcsc.edu /cascade/ns350/Blunders.htm (1221 words)

	Accuracy and Precision (Site not responding. Last check: 2007-11-07)
		Perhaps the easiest way to illustrate the difference between accuracy and precision is to use the analogy of a marksman, to whom the "truth" represents the bullseye.
		Accuracy relates to the quality of a result, and is distinguished from precision, which relates to the quality of the operation by which the result is obtained.
		Error, Accuracy and Precision, Kenneth E. Foote and Donald J. Huebner, The Geographer's Craft Project, Department of Geography, University of Colorado at Boulder.
	www.flatsurv.com /accuprec.htm (1253 words)

	Accuracy International (Site not responding. Last check: 2007-11-07)
		Accuracy International was formed in 1978 to design and build tactical rifles.
		Such units are exposed to 'live' tactical situations on a daily basis and in the most demanding environments where first shot accuracy is critical.
		All components are manufactured to Accuracy International designs to ensure that they are optimised for the function they must perform, something that cannot be achieved with a ruggedised sporting weapon.
	www.accuracyinternational.com (157 words)

	Accuracy Statement for SunriseSunset.com (Site not responding. Last check: 2007-11-07)
		The accuracy of sunrise, sunset and twilight times degrades as the latitude of the location is further north of 60 degrees north or further south of 60 degrees south.
		The current local time calculations are dependent on the accuracy of the clock of the server where the page is generated.
		Other factors may affect the accuracy of the clock causing the local time to be displayed incorrectly.
	www.sunrisesunset.com /accuracy.html (259 words)

	Inventory Accuracy: People, Processes, & Technology
		A comprehensive treatment of Inventory Accuracy and Cycle Counting in distribution, fulfillment, and manufacturing environments.
		Inventory accuracy starts with an understanding of the conditions under which errors occur and ends with error-resistant processes, intelligent use of technology, a well-trained and highly motivated workforce, and an ongoing process of continuous improvement.
		In addition to documenting the standard tools and techniques used to achieve accuracy, the author provides insights as to why many of the standard solutions don’t provide the best results and offers alternative methods.
	accuracybook.com (558 words)

	Location Accuracy Requirements (Site not responding. Last check: 2007-11-07)
		Location accuracy is also critical for imperfections in areas where additional inspections or preventative maintenance work are difficult or expensive, for example in subsea lines or at river crossings.
		Often, to attain the necessary location accuracy, pigging vendors provide above ground marker (AGM) systems that detect the passage of the in-line tool, usually by detecting the a rapid change in magnetic field.
		The AGM notes the time of passage, allowing the location to be entered as a fixed reference on the data log.
	www.battelle.org /pipetechnology/MFL/Links/LocAccuracyReq.htm (241 words)

	Interpreting EPD Accuracy
		Accuracy can be defined as the relationship between the estimated EPD of the animal and the "true" EPD of the animal.
		Accuracy is primarily a function of the amount of information available to calculate an EPD for any given trait.
		High accuracy EPD animals would not be expected to have any more or any less variation in their calf crop compared to low accuracy EPD animals.
	www.ext.vt.edu /news/periodicals/livestock/aps-02_03/aps-074.html (892 words)

	Scale and balance definitions in simple terms
		The extent to which a given measurement agrees with the standard value for that measurement ¹; The ability of a scale to provide a result that is as close as possible to the actual value.
		Class F weights may be used to test most accuracy class III scales, all scales of class III L or IIII, and scales not marked with a class designation.
		If you go outside of this temperature the scale may be off by a division (in the case of the Ohaus SC6010 <600 g x 0.1g> a division is 0.1 gram so that means it maybe off by +/-0.2 grams instead of the stated +/- 0.1 gram).
	balances.com /applications/glossary.html (4834 words)

	Matrix Science - Help - Accuracy & Resolution
		This is a significant difference when even the most modest instruments are capable of measuring the mass of a small peptide with an accuracy of a fraction of a Dalton.
		The accuracy of a centroid depends on the precise measurement of the ion current at a sufficient number of points to define the isotopic envelope precisely.
		This is because the narrower the peak, the less the significance of errors due to variations in the peak shape.
	www.matrixscience.com /help/mass_accuracy_help.html (1055 words)

	ExxonSecrets Factsheet: Accuracy in Academia (Site not responding. Last check: 2007-11-07)
		Accuracy in Academia is an educational watchdog group that promotes conservatism on college and university campuses.
		As a conservative educational watchdog, Accuracy in Academia states it wants colleges and universities to "return to its traditional mission-the quest for truth" and aims "to provide an antidote to political correctness on campuses." Accuracy in Academia is affiliated with Accuracy in Media and the Council for the Defense of Freedom at the same address.
		Accuracy in Academia was a sponsor of the first national "wise use" meeting in Reno, Nevada in 1988.
	www.exxonsecrets.org /html/orgfactsheet.php?id=3 (99 words)

	Accuracy Calculator - Support - National Instruments
		Absolute accuracy is the specification you must use to determine the overall maximum possible error of your measurement.
		Absolute accuracy does assume you have calibrated your DAQ device or signal conditioning equipment within the last year.
		Accuracy depends on the quality and precision of your source.
	www.ni.com /advisor/accuracy/acc_support.htm (466 words)

	Accuracy Comparison
		Accuracy statistics for gene prediction programs are described here.
		The accuracy of GENSCAN is somewhat sensitive to exon length.
		This dependence is summarized in the table below, which shows accuracy statistics for exons from the Burset/Guigó test set grouped according to length.
	genes.mit.edu /Accuracy.html (350 words)

	Accuracy And Precision (Site not responding. Last check: 2007-11-07)
		The procedure is completely painless and produces results with accuracy and precision comparable to existing fingerstick devices.
		CARTO RMT System combines unparalleled accuracy and precision in electroanatomical mapping with a new level of navigational control.
		The equipment allows doctors to pinpoint a tumor with an accuracy of less than...
	www.wikiverse.org /accuracy-and-precision (448 words)

	ACCURACY - Definition
		[n] the quality of nearness to the truth or the true value; "he was beginning to doubt the accuracy of his compass"; "the lawyer questioned the truth of my account"
		The professed end [of logic] is to teach men to think, to judge, and to reason, with precision and accuracy.
		The accuracy with which the piston fits the sides.
	www.hyperdictionary.com /dictionary/accuracy (129 words)

	Evade/Accuracy
		Dig or Fly suggests that the effect of these moves is to change the attacker's Accuracy to 0, or the defender's Evade to 1, or both.
		That Evade is normally 0% and Accuracy normally 100% is suggested by the fact that unless modifiers have been used, the accuracy values for attacks seem correct.
		The accuracy of Egg Bomb against the Electrode over 250 trials was 78.4%: somewhat higher than the 74.6% figure reported for that move by Necrosaro.
	www.math.miami.edu /~jam/azure/attacks/comp/evacc.htm (1869 words)

	AllRefer.com - balance : Accuracy of Balances (Technology: Terms And Concepts) - Encyclopedia
		For example, the analytical balance, a type of equal-arm balance, is used for delicate weighing in quantitative chemical analysis and in preparing pharmaceutical prescriptions; it must be kept in a glass case, since its accuracy is easily affected by dust and moisture.
		A spring balance does not retain its accuracy permanently, for no matter how carefully it is handled, the spring very gradually uncoils even though its limit of elasticity has not been exceeded.
		For ordinary purposes the errors are so small that they are considered insignificant, but in chemical analysis it has been necessary to develop methods by which they can be further minimized.
	reference.allrefer.com /encyclopedia/B/balance-accuracy-of-balances.html (277 words)

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