• An n-tuple is a tuple of n elements, where n is a non-negative integer. There is only one 0-tuple, called the empty tuple. A 1-tuple and a 2-tuple are...
    16 KB (2,180 words) - 16:15, 22 April 2024
  • Tuple-versioning (also called point-in-time) is a mechanism used in a relational database management system to store past states of a relation. Normally...
    2 KB (264 words) - 15:21, 25 September 2015
  • A tuple space is an implementation of the associative memory paradigm for parallel/distributed computing. It provides a repository of tuples that can be...
    13 KB (1,453 words) - 08:28, 1 April 2024
  • operators. New tuples can supply explicit values or be derived from a query. Similarly, queries identify tuples for updating or deleting. Tuples by definition...
    32 KB (3,832 words) - 14:32, 6 April 2024
  • theory, a prime k-tuple is a finite collection of values representing a repeatable pattern of differences between prime numbers. For a k-tuple (a, b, …), the...
    10 KB (1,060 words) - 01:03, 28 January 2024
  • In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a...
    2 KB (239 words) - 22:22, 14 February 2023
  • Product type (redirect from Tuple type)
    The expression of an instance of a product type will be a tuple, and is called a "tuple type" of expression. A product of types is a direct product...
    4 KB (467 words) - 13:13, 12 November 2023
  • computer scientist Edgar F. Codd, where all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational...
    30 KB (4,219 words) - 22:28, 25 March 2024
  • Tuple calculus is a calculus that was created and introduced by Edgar F. Codd as part of the relational model, in order to provide a declarative database-query...
    15 KB (2,295 words) - 18:23, 10 December 2022
  • sees any evidence of an attack. A TCP connection is identified by a four-tuple of the source address, source port, destination address, and destination...
    103 KB (12,299 words) - 06:13, 27 April 2024
  • Thumbnail for Relation (database)
    database theory, a relation, as originally defined by E. F. Codd, is a set of tuples (d1,d2,...,dn), where each element dj is a member of Dj, a data domain....
    10 KB (1,295 words) - 08:26, 1 April 2024
  • and tuple type: The depth attribute defines the number of channels in the image, such as 1 for greyscale images and 3 for RGB images. The tuple type...
    25 KB (3,089 words) - 16:13, 29 January 2024
  • all tuples found in either relation (union), removing tuples from the first relation found in the second relation (difference), extending the tuples of...
    50 KB (6,301 words) - 18:22, 20 April 2024
  • a tuple of values sequentially computed are going to be useful only if the whole tuple meet certain conditions. Knowing that a value of the tuple invalides...
    1 KB (157 words) - 02:43, 11 May 2021
  • bringing many language additions like tuples in rest parameters and spread expressions, rest parameters with tuple types, generic rest parameters and so...
    38 KB (3,196 words) - 16:12, 24 April 2024
  • used to control the learning process. Hyperparameter optimization finds a tuple of hyperparameters that yields an optimal model which minimizes a predefined...
    23 KB (2,460 words) - 16:35, 4 January 2024
  • Thumbnail for Circular shift
    mathematics, a circular shift is the operation of rearranging the entries in a tuple, either by moving the final entry to the first position, while shifting...
    9 KB (986 words) - 10:07, 26 November 2023
  • The Pseudo K-tuple nucleotide composition or PseKNC, was extended from Chou's Pseudo amino acid composition (PseAAC). Both PseAAC and PseKNC are of vector...
    3 KB (326 words) - 06:07, 23 January 2023
  • Thumbnail for Pythagorean triple
    is a Pythagorean n-tuple for any tuple of positive integers (m1, ..., mn) with m2 1 > m2 2 + ... + m2 n. The Pythagorean n-tuple can be made primitive...
    81 KB (11,502 words) - 19:20, 12 April 2024
  • In relational database theory, a tuple-generating dependency (TGD) is a certain kind of constraint on a relational database. It is a subclass of the class...
    4 KB (542 words) - 23:07, 28 March 2024
  • Thumbnail for Geographic coordinate system
    basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system, the geographic coordinate system is...
    21 KB (2,380 words) - 18:12, 4 April 2024
  • of attributes that uniquely identifies each tuple of a relation. Because superkey values are unique, tuples with the same superkey value must also have...
    5 KB (549 words) - 06:18, 23 March 2024
  • Thumbnail for DiGeorge syndrome
    Result of FISH analysis using LSI probe (TUPLE 1) from DiGeorge/velocardiofacial syndrome critical region. TUPLE 1 (HIRA) probe was labeled in Spectrum...
    49 KB (5,271 words) - 01:31, 26 April 2024
  • Thumbnail for Python (programming language)
    immutable in Python). Tuples, written as (1, 2, 3), are immutable and thus can be used as keys of dictionaries, provided all of the tuple's elements are immutable...
    162 KB (13,375 words) - 18:26, 29 April 2024
  • This is an incomplete list of football clubs that have won four or more trophies in a single season. In a football season, clubs typically compete in many...
    45 KB (1,932 words) - 21:21, 30 March 2024
  • with or without an index. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may...
    39 KB (3,754 words) - 22:09, 28 April 2024
  • an equation. For any pair of positive integers n and k, the number of k-tuples of positive integers whose sum is n is equal to the number of (k − 1)-element...
    13 KB (1,772 words) - 00:04, 20 April 2024
  • nested_loop_join is for each tuple r in R do for each tuple s in S do if r and s satisfy the join condition then yield tuple <r,s> This algorithm will involve...
    2 KB (335 words) - 08:22, 14 February 2024
  • some contexts, for tuples, which are finite sequences (of numbers or other objects) of a fixed length. Both geometric vectors and tuples can be added and...
    10 KB (2,010 words) - 16:02, 9 April 2024
  • _{2}(x)} above. The fully general first Hardy–Littlewood conjecture on prime k-tuples (not given here) implies that the second Hardy–Littlewood conjecture is...
    21 KB (2,628 words) - 16:33, 2 March 2024