Reservoir sampling is a family of randomized algorithms for choosing a simple random sample, without replacement, of k items from a population of unknown size n in a single pass over the items. The size of the population n is not known to the algorithm and is typically too large for all n items to fit into main memory. The population is revealed to the algorithm over time, and the algorithm cannot look back at previous items. At any point, the current state of the algorithm must permit extraction of a simple random sample without replacement of size k over the part of the population seen so far.
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Reservoirsampling is a family of randomized algorithms for choosing a simple random sample, without replacement, of k items from a population of unknown...
random sampling is a basic type of sampling and can be a component of other more complex sampling methods. The principle of simple random sampling is that...
14 C to 12 C in the different reservoirs, and hence the radiocarbon ages of samples that originated in each reservoir. The atmosphere, which is where...
October 2022. Northern Ireland Environment Agency Inland Fisheries of Ireland: Sampling Fish (Page 2) Inland Fisheries of Ireland: Sampling Fish (Page 2)...
model may be determined by a process of sampling geological maps. Uncertainty in the true values of the reservoir properties is sometimes investigated by...
petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form...
to many of these samples is facilitated by the Index to Marine & Lacustrine Geological Samples. Coring began as a method of sampling surroundings of ore...
than 160 kbit/s. By lowering the sampling rate, MPEG-2 layer III removes all frequencies above half the new sampling rate that may have been present in...
contaminant. Sampling methods include for example simple random sampling, stratified sampling, systematic and grid sampling, adaptive cluster sampling, grab...
or whole core samples. These studies are combined with geological, geophysical, and reservoir engineering studies to model the reservoir and determine...
million to maintain these mains. There are 965 water sampling stations in New York City. The water-sampling system has been in use since 1997. They consist...
The Ross Barnett Reservoir, often called the Rez, is a reservoir of the Pearl River between Madison and Rankin counties in the U.S. state of Mississippi...
set of landmarks with known locations. RANSAC uses repeated random sub-sampling. A basic assumption is that the data consists of "inliers", i.e., data...
Reservoir simulation is an area of reservoir engineering in which computer models are used to predict the flow of fluids (typically, oil, water, and gas)...
Amityville on Long Island, New York. They are best known for their eclectic sampling, eccentric lyrics, and contributions to the evolution of the jazz rap and...
The sample complexity of a machine learning algorithm represents the number of training-samples that it needs in order to successfully learn a target...
the Earth's oceans to correct for the marine reservoir effect. The level of the effect on a particular sample varies significantly, depending on the body...
to identify the vector species presumably residing in the cave. Despite sampling a wide variety of species (including fruit bats), no Marburg disease-causing...
with the evaluation of seven key elements in sedimentary basins: Source Reservoir Seal Trap Timing Maturation Migration In general, all these elements must...
the production of cerebrospinal fluid (CSF), and is shown to serve as a reservoir for neuroregeneration. The ependyma is made up of ependymal cells called...
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