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An alternative data set can be compiled from various sources such as financial transactions, sensors, mobile devices, satellites, public records, and the internet. [3] [8] [9] [10] Alternative data can be compared with data that is traditionally used by investment companies such as investor presentations, SEC filings, and press releases. [11]
When data.gov.uk was officially launched in January 2010, Ordnance Survey (OS) data was one of the key data sets that Sir Tim Berners-Lee and Prof Nigel Shadbolt wanted to see opened up as part of the project. [6] Ordnance Survey data was included in data.gov.uk on 1 April 2010 [7] and provides information on geographical locations. According ...
Volleyball is a popular sport in the United States with both male and female participants of all ages. Almost all high schools and colleges in the United States have female volleyball teams, and most regions of the country have developmental programs for girls of all ages as well.
While, strictly speaking, two- and higher-dimensional data sets are "multi-dimensional", the term "multidimensional" tends to be applied only to data sets with three or more dimensions. [2] For example, some forecast data sets provide forecasts for multiple target periods, conducted by multiple forecasters, and made at multiple horizons.
The set of images in the MNIST database was created in 1994 as a combination of two of NIST's databases: Special Database 1; and Special Database 3. [16]Special Database 1 and Special Database 3 consist of digits written by high school students and employees of the United States Census Bureau, respectively.
The Iris flower data set or Fisher's Iris data set is a multivariate data set used and made famous by the British statistician and biologist Ronald Fisher in his 1936 paper The use of multiple measurements in taxonomic problems as an example of linear discriminant analysis. [1]
Compare this to the concept of a set of mutually exclusive events. In such a set no more than one event can occur at a given time. (In some forms of mutual exclusion only one event can ever occur.) The set of all possible die rolls is both mutually exclusive and collectively exhaustive (i.e., "MECE"). The events 1 and 6 are mutually exclusive ...
The Nested Set model is appropriate where the tree element and one or two attributes are the only data, but is a poor choice when more complex relational data exists for the elements in the tree. Given an arbitrary starting depth for a category of 'Vehicles' and a child of 'Cars' with a child of 'Mercedes', a foreign key table relationship must ...