Search results
Results from the WOW.Com Content Network
Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...
Word2vec is a technique in natural language processing (NLP) for obtaining vector representations of words. These vectors capture information about the meaning of the word based on the surrounding words.
In Python 3.x the range() function [28] returns a generator which computes elements of the list on demand. Elements are only generated when they are needed (e.g., when print(r[3]) is evaluated in the following example), so this is an example of lazy or deferred evaluation: >>>
[4]: 112 Series can be used arithmetically, as in the statement series_3 = series_1 + series_2: this will align data points with corresponding index values in series_1 and series_2, then add them together to produce new values in series_3. [4]: 114 A DataFrame is a 2-dimensional data structure of rows and columns, similar to a spreadsheet, and ...
Excel runs on 286- and 386-based systems with an accelerator board. Excel offers Dynamic Data Exchange, a Windows feature. Excel reads and writes 1-2-3 files and accepts 1-2-3 macros. [17] [338] November: Compaq ships Compaq MS-DOS 3.31 with support for hard disk partitions over 32 MB, up to 512 MB. Partitions over 32 MB use a new partition ...
Although often referred to as a distance metric, the Jaro–Winkler distance is not a metric in the mathematical sense of that term because it does not obey the triangle inequality. [4] The Jaro–Winkler distance also does not satisfy the identity axiom d ( x , y ) = 0 ↔ x = y {\displaystyle d(x,y)=0\leftrightarrow x=y} .
Time series: random data plus trend, with best-fit line and different applied filters. In mathematics, a time series is a series of data points indexed (or listed or graphed) in time order.
The company listed in New York in 1990, [20] and in Milan in December 2000, [21] joining the MIB-30 (now FTSE MIB) index in September 2003. [22] The listing raised money for the company and allowed it to use its shares to acquire other brands, starting with Italian brand Vogue Eyewear in 1990, Persol and LensCrafters in 1995, Ray-Ban from ...