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Jaccard (other)
Jaccard is a surname. Jaccard may also refer to: * Jaccard index The Jaccard index is a statistic used for gauging the similarity and diversity of sample sets. It is defined in general taking the ratio of two sizes (areas or volumes), the intersection size divided by the union size, also called intersection ..., a statistic used for gauging the similarity and diversity of sample sets * Jaccard loom, a power loom attachment that allows the manufacture of intricate patterns * USS ''Jaccard'' (1944–1968), a U.S. Navy destroyer escort See also * Jacquard (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaccard
Jaccard is a surname. Notable people with the surname include: * Auguste Jaccard (1833–1895), Swiss geologist and paleontologist * Fernand Jaccard (1907–2008), Swiss footballer * James Jaccard (born 1949), American psychologist and social work researcher * Marius Jaccard (1898–1978), Swiss ice hockey player * Mark Jaccard (born 1955) Canadian economist and academic * Jacques Jaccard (1886–1960), American director * (born 1964), 1990 winner of the Swiss bike race Giro del Mendrisiotto * Paul Jaccard (1868–1944), Swiss botanist and academic * Richard Alonzo Jaccard USS ''Jaccard'' (DE-355) was a acquired by the U.S. Navy during World War II. The primary purpose of the destroyer escort was to escort and protect ships in convoy, in addition to other tasks as assigned, such as patrol or radar picket. Post-wa ... (1918–1942), U.S. Navy ensign, USS ''Jaccard'' was named after him * Roland Jaccard (1941–2021), Swiss writer and psychologist * Francis Jaccard (1745� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaccard Index
The Jaccard index is a statistic used for gauging the similarity and diversity of sample sets. It is defined in general taking the ratio of two sizes (areas or volumes), the intersection size divided by the union size, also called intersection over union (IoU). It was developed by Grove Karl Gilbert in 1884 as his ratio of verification (v) and now is often called the critical success index in meteorology. It was later developed independently by Paul Jaccard, originally giving the French name (coefficient of community), and independently formulated again by Taffee Tadashi Tanimoto. Thus, it is also called Tanimoto index or Tanimoto coefficient in some fields. Overview The Jaccard index measures similarity between finite non-empty sample sets and is defined as the size of the intersection divided by the size of the union of the sample sets: : J(A, B) = \frac = \frac. Note that by design, 0 \le J(A, B) \le 1. If the sets A and B have no elements in common, their intersectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaccard Loom
The Jacquard machine () is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. The resulting ensemble of the loom and Jacquard machine is then called a Jacquard loom. The machine was patented by Joseph Marie Jacquard in 1804, based on earlier inventions by the Frenchmen Basile Bouchon (1725), Jean Baptiste Falcon (1728), and Jacques Vaucanson (1740). The machine was controlled by a "chain of cards"; a number of punched cards laced together into a continuous sequence. Multiple rows of holes were punched on each card, with one complete card corresponding to one row of the design. Both the Jacquard process and the necessary loom attachment are named after their inventor. This mechanism is probably one of the most important weaving innovations, as Jacquard shedding made possible the automatic production of unlimited varieties of complex pattern weaving. The term "Jacquard" is not specific or l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Jaccard
USS ''Jaccard'' (DE-355) was a acquired by the U.S. Navy during World War II. The primary purpose of the destroyer escort was to escort and protect ships in convoy, in addition to other tasks as assigned, such as patrol or radar picket. Post-war, she returned home with one battle star to her credit. Namesake Richard Alonzo Jaccard was born on 1 July 1918 in Troy, Missouri. He enlisted in the U.S. Naval Reserve on 29 October 1940. He later underwent flight training and upon graduation was commissioned Ensign on 27 September 1941. Reporting to the carrier in April 1942, Ensign Jaccard later took part in the Battle of Midway. Flying as a wingman to Lieutenant Commander C. Wade McClusky during his dive attack he apparently mistook his undercarriage lever for the wing-brake lever and slowed his plane by lowering his wheels instead of his brake flaps. While he missed his target on that dive, he is credited with a hit on the Imperial Japanese Navy carrier ''Hiryū'' (later the same d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
