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	Urn problem -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-09-09)
		An urn problem is an idealized (additional info and facts about thought experiment) thought experiment in which some objects of real interest (such as atoms, people, cars, etc.) are represented as colored balls in an (A large pot for making coffee or tea) urn or other container.
		In this basic urn model in (The branch of applied mathematics that deals with probabilities) probability theory, the urn contains x white and y fl balls; one ball is drawn randomly from the urn and its color observed; it is then placed back in the urn, and the selection process is repeated.
		Urn problems have been a part of the (additional info and facts about theory of probability) theory of probability since at least the publication of the Ars conjectandi by (Swiss mathematician (1654-1705)) Jakob Bernoulli (1713).
	www.absoluteastronomy.com /encyclopedia/u/ur/urn_problem.htm (433 words)

	Logical equivalence between generalized urn models and finite automata
		The logical equivalence of automaton models (AM) with generalized urn models suggests that these logics are more general and ``robust'' with respect to changes of the particular model than could have been expected from the particular instances of their first appearance.
		From the definitions and constructions mentioned in the previous sections it is intuitively clear that, with respect to the empirical logics, generalized urn models and finite automata models are equivalent.
		We have explicitly demonstrated the logical equivalence of generalized urn models and and the logic of finite automata, both by a direct construction and by an indirect construction utilizing the set of two-valued states.
	tph.tuwien.ac.at /~svozil/publ/2001-eua.htm (2305 words)

	An Urn Model
		Suppose that there are two urns i and j containing red and green lottery tickets revealing a number after unfolding (the colours representing experimental conditions, and the process of drawing a ticket, unfolding it and reading the number standing for the performance of an experiment resulting in a value of the dependent variable).
		In both urns, the median of the numbers on the red tickets is smaller than on the green tickets (13 resp.
		For a probability interpretation, consider the experiment of selecting an urn and a colour by two tosses of a coin and drawing a ticket of the selected colour from the selected urn.
	www.dgps.de /fachgruppen/methoden/mpr-online/issue1/art2/node8.html (353 words)

	The probability of an event occurring is represented by a rational number if it can be associated with random drawing ... (Site not responding. Last check: 2007-09-09)
		In the probability model it is supposed that uncertainty surrounding the arrival of a bus is completely specified by the route it is on (1, 2 or 3) and whether it is a single or double-decker bus as shown in table 1.
		His model is incomplete because it fails to take account of the relationship between the identities of the respondents and the identities of the imagined population members.
		Where a model is incomplete its fit (in the sense of its correspondence to a set of observed relative frequencies) is inadequate to assess the quality of the probability it assigns to the outcome of a particular event.
	www.stir.ac.uk /staff/psychology/rrm1/lpmrev.html (10830 words)

	Urn problem (Site not responding. Last check: 2007-09-09)
		An urn problem is an idealized thoughtexperiment in which some objects of real interest (such as atoms, people, cars, etc.) are represented as colored balls in an urn or other container.
		One pretends to draw(remove) one or more balls from the urn; the goal is to determine the probability of drawing one color or another, or some otherproperties.
		In this basic urn model in probability theory, the urncontains x white and y fl balls; one ball is drawn randomly from the urn and its color observed; it is thenplaced back in the urn, and the selection process is repeated.
	www.therfcc.org /urn-problem-218115.html (319 words)

	Citations: Urn Models and Their Application - Johnson, Kotz (ResearchIndex) (Site not responding. Last check: 2007-09-09)
		Assuming that the urn size is infinite corresponds, in terms of relational databases, to a relation with a key on the attribute suppressed in the projection.
		In our model, M balls are allocated to N boxes, such that the M balls are thrown independently into the boxes, and that each ball is put into the N boxes with equal probability.
		Chaque urne peut recevoir jusqu a b boules; lancer une boule dans une urne est equivalent a dire que le bloc correspondant contient un des n uplets cherch es, et qu il faudra donc le s electionner; par....
	citeseer.ist.psu.edu /context/75475/0 (4014 words)

	Probability interpretations - Wikipedia, the free encyclopedia
		While frequentism is widely accepted as a scientific tool, the use of Bayesian probability often raises the philosophical debate as to whether it can contribute valid justifications of belief.
		In order to resolve a particular problem using probability theory, Bayesians will accept to apply a particular probability model, such as the urn model, to a thought experiment.
		The issue is that for a given problem, multiple thought experiments could apply, and choosing one is a matter of intuition or belief.
	en.wikipedia.org /wiki/Probability_interpretations (354 words)

	An Urn Model from Learning Theory - Boucheron, Gardy (ResearchIndex) (Site not responding. Last check: 2007-09-09)
		Abstract: We present an urn model that is a variation of the classical occupancy model, and in which the balls are of two types (good and bad).
		General Urn Models With Several Types Of Balls And..
		2 Limit theorems in a model of distribution of particles of tw..
	citeseer.ist.psu.edu /boucheron97urn.html (647 words)

	ICSTI Forum, no. 30, April 1999
		That model delineated the roles of users, organizations and objects in the authorization process, and differentiated between aspects of authorization that depend upon personal interaction vs. aspects that are or can be mechanized by systems.
		Such a user model quickly becomes unmanageable and is not scalable within organizations that must abstract their users as groups, and especially if they license content in terms of those groups.
		That is, the URN will be globally unique forever, and may well be used as a reference to a resource well beyond the lifetime of the resource it identifies or of any naming authority involved in the assignment of its name.
	www.icsti.org /forum/30/index.html (18736 words)

	Urn problem (Site not responding. Last check: 2007-09-09)
		An urn problem is an idealized thought experiment in which some objects of real (such as atoms people cars etc.) are as colored balls in an urn or container.
		One pretends to draw (remove) one more balls from the urn; the goal to determine the probability of drawing one or another or some other properties.
		In this basic urn model in probability theory the urn contains x white and y fl balls; one ball is drawn from the urn and its color observed; is then placed back in the urn the selection process is repeated.
	www.freeglossary.com /Urn_problem (644 words)

	Citations: The sampling theory of neutral alleles and an urn model in population genetics - Hoppe (ResearchIndex) (Site not responding. Last check: 2007-09-09)
		Citations: The sampling theory of neutral alleles and an urn model in population genetics - Hoppe (ResearchIndex)
		The sampling theory of neutral alleles and an urn model in population genetics.
		used the urn scheme to derive the simple form of the size biased random permutation of the pd distribution, which Ewens [24] termed the gem distribution, after Griffiths, Engen and McCloskey, who contributed to its development and application in the fields of genetics and ecology.
	citeseer.ist.psu.edu /context/432754/0 (481 words)

	TCS: Tech Central Station - Is Fed Acting To Halt A Recession, Or A Vacation? (Site not responding. Last check: 2007-09-09)
		He went on to develop a new model that redefined what we mean by recession in an important way, one that sheds an interesting light on our current experience.
		One simple conceptual model for gross domestic product growth that many people used 10 years ago was the "urn model." Economists would think of GDP growth as being like a random drawing taken from an urn that has colored balls in it with various growth rates written on them.
		The average of all the numbers in the urn was about 2.5 percent, but the actual number we experience could be larger or smaller than that depending on luck.
	www.techcentralstation.com /012901C.html (879 words)

	Publication:s01/022 (Site not responding. Last check: 2007-09-09)
		We consider a mean-field dynamical urn model, defined by rules which give the rate at which a ball is drawn from an urn and put in another one, chosen amongst an assembly.
		At equilibrium, this model possesses a fluid and a condensed phase, separated by a critical line.
		We present an analytical study of the nonequilibrium properties of the fluctuating number of balls in a given urn, considering successively the temporal evolution of its distribution, of its two-time correlation and response functions, and of the associated fluctuation-dissipation ratio, both along the critical line and in the condensed phase.
	www-spht.cea.fr /articles/S01/022 (200 words)

	While a Storm is Raging on the Open Sea
		First, the linear models of innovation which either assumed “market pull” or “technology push” as the driving forces of innovation had to be superseded.
		The Triple Helix model can be elaborated as a neo-evolutionary model that enables us first to understand innovation systems as complex systems and then also serves us as a heuristic for the operationalization.
		A micro-foundation of the model could be proposed by arguing that the knowledge base of an economy is not only agent-based, but also and in important respects communication-based.
	users.fmg.uva.nl /lleydesdorff/storm_at_sea/index.htm (7138 words)

	Nichtlineare Dynamik/Stochastische Prozesse - Single Publication (Site not responding. Last check: 2007-09-09)
		This work is devoted to applications of the Ehrenfest urn model to innovation and search processes.
		In the first part we discuss systems of two urns serving as models of innovation processes.
		The known equations for thermodynamic search processes and for simple models of biological evolution are unified by defining a two-parameter family of equations which embeds both cases.
	summa.physik.hu-berlin.de /tsd/cgi-bin/showSingle.cgi?jahr=2000&nummer=29 (196 words)

	Statistics.com: Encyclopedia of Biostatistics (Site not responding. Last check: 2007-09-09)
		Building on the widely acclaimed First Edition, the distinguished editorial team has commissioned new material and revised existing articles to ensure that the coverage of key topics is completely up to date and comprehensive.
		Among the areas receiving increased attention are Bayesian methodology and applications, and modeling the spread of infectious diseases and the development of epidemics.
		In addition the Encyclopedia now includes many contributions that focus on the rapid growth of bioinformatics and its pivotal role in studying the human genome.
	www.statistics.com /content/encyclopedia/bioencyclopedia.html (322 words)

	West Bend Coffee Urn
		Coffee Urns, Large Capacity Coffee Urns for 12 to 100 Cups of Coffee by West Bend or Vollrath at Twin Supply Inc.
		Urns - Large Coffee Pot by West Bend including Aluminum and Stainless Steel Coffee Urns, Coffee for a large crowd - 100 Cup Coffee Urns or 55 Cup or 30 Cup and Vollrath Coffee Brewer/Warmer in...
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	www.e-coffeeshop.com /42/west-bend-coffee-urn.html (521 words)

	Boole-Bell-type inequalities in \mathematica
		Consider an urn containing some balls of different colors and styles: Each ball can be described by two properties, let us say ÿellow" and "wooden", so each ball can have the property ÿellow" or the property "wooden", but it can also have both ÿellow and wooden".
		If there are enough balls in the urn these proportions are in fact the probabilities to get a ball with the special property by drawing.
		The Minkowski-Weyl representation theorem (e.g., [11]) states that compact convex sets are ``spanned'' by their extreme points; and furthermore that the representation of this polytope by the inequalities corresponding to the planes of their faces is an equivalent one.
	tph.tuwien.ac.at /~svozil/publ/2001-cddif.htm (4512 words)

	[No title] (Site not responding. Last check: 2007-09-09)
		Some limit theorems in urn models with indistinguishable balls.
		A Poisson approximation in an urn model with indistinguishable balls.
		Normal approximation in an urn model with indistinguishable balls.
	www.cmmacs.ernet.in /~indira/publ_nki.html (103 words)

	Cornell Department of Biometrics Published Papers (Site not responding. Last check: 2007-09-09)
		Abstract: We derive the distribution of the number of infections among unvaccinated and vaccinated individuals for model 1 (leaky) and model 2 (all/nothing) vaccines, assuming random mixing of a homogeneous population.
		We found that the current point estimates of VE for each model perform very well, but the urn model construction presented here provides a strong framework for estimation and hypothesis testing on the parameters, and can be applied when the available data are a sample of the population.
		Since the method does not require an underlying transmission model, it can be applied to estimate the VE for non-contagious diseases.
	www.bscb.cornell.edu /Publications/Bus/819.html (187 words)

	Compton (Site not responding. Last check: 2007-09-09)
		A frequent criticism of average-case analysis of algorithms is that the probabilistic model used is often not realistic.
		In particular, we investigate ball and urn models and the transform techniques required to analyze algorithms on these models.
		We consider other cases where balls may not be uniformly distributed and the urns may not be distinguishable.
	www.geometrie.tuwien.ac.at /AofA2002/submissions/Compton.html (235 words)

	On a model of sea battles (Site not responding. Last check: 2007-09-09)
		In the current paper we consider a model which provides a concise example of the interactions between three theories: probability, nonlinear ordinary differential equations and linear partial differential equations.
		The starting point is the following urn model of sea battles: in an urn there are
		The corresponding linear PDE describes the evolution of probability distributions for the urn model.
	alamos.math.arizona.edu /~rychlik/lovelock_paper/paper.html (103 words)

	The urn model (Site not responding. Last check: 2007-09-09)
		If then we draw one white and one fl ball from the urn and select a ``winner'' amongst the two balls by a random procedure.
		We repeat this experiment until there are no white or no fl balls in the urn.
		The color of the remaining balls is declared the winner.
	alamos.math.arizona.edu /~rychlik/lovelock_paper/node2.html (103 words)

	cremation urns and decorative keepsake jewelry for pet and human cremated remains
		We sell cremation urns, keepsakes, jewelry, pet urns manufactured of materials like bronze, ceramic, cloisonné, wood, pewter and other quality materials direct to consumers.
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		If you are searching for a hard to find cremation urn or custom urn, or something you saw elsewhere, let us know, we would be happy to search our extensive database and e-mail you a picture and price on such cremation urns.
	www.urnseller.com (342 words)

	SAFCO Reflections sand fill ash urn, 9832, 9833, 9835
		Ideal for lounges and smaller common areas where smoking is permitted.
		This expertly crafted unit is constructed with the highest quality, puncture-resistant, fire-safe steel with a rolled rim and double lock seams.
		Lift-out sand fill ash urn is rust-resistant anodized aluminum for years of use (sand is not included).
	www.grant-ent.com /safco/5asc03.htm (94 words)

	SIMAX Volume 6 Issue 3
		In the generalized Polya–Eggenberger urn model, an urn initially contains a given number of white and fl balls.
		A ball is selected at random from the urn, and the number of white and fl balls added to (or taken away from) the urn depends on the color of the ball selected.
		A sufficient condition is derived for the asymptotic normality, as $n \to \infty $, of the standardized random variable corresponding to $w_n $.
	locus.siam.org /SIMAX/volume-06/art_0606041.html (182 words)

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	www.l0ffer15.com /si/model-8 (1874 words)

	WestBend 60 Cup Stainless Steel Coffee Urn / Coffeemaker(Model # 59055) from ShopDirect. Free Shipping...
		The 59055 stainless steel urn is designed for buffet tables, offices, churches, break rooms, lounges and cafés.
		This coffee maker is constructed of durable, highly polished stainless steel including basket and stem.
		This urn also features heat resistant base and trim, and interior water level markings listed in liters and cups.
	www.shopdirect.com /WestBend/59055.html (104 words)

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