Paul Jaccard (18 November 1868 in Sainte-Croix – 9 May 1944 in Zurich) was a professor of botany and plant physiology at the ETH Zurich. He studied at the University of Lausanne and ETH Zurich (PhD 1894). He continued studies in Paris with Gaston Bonnier.
He developed the Jaccard index of similarity (he called it coefficient de communauté) and published it in 1901.[1]
He also introduced the use of the species-to-genus ratio (he called it generic coefficient) in biogeography.[2] In the 1920s, Paul Jaccard engaged in a dispute with the Finnish botanist and phytogeographer Alvar Palmgren over the interpretation of species-to-genus ratio, as evidence of competitive exclusion (as held by Jaccard) or attributable to random sampling (as held by Palmgren).[3]
^Jaccard, P. (1901) Distribution de la flore alpine dans le bassin des Dranses et dans quelques régions voisines. Bulletin de la Société Vaudoise des Sciences Naturelles 37, 241-272.
^Jaccard, P. (1901) Étude comparative de la distribution florale dans une portion des Alpes et des Jura. Bulletin de la Société Vaudoise des Sciences Naturelles 37, 547-579.
^Järvinen, Olli (1982) Species-To-Genus Ratios in Biogeography: A Historical Note. Journal of Biogeography 9 (4): 363-370.
PaulJaccard (18 November 1868 in Sainte-Croix – 9 May 1944 in Zurich) was a professor of botany and plant physiology at the ETH Zurich. He studied at...
The Jaccard index, also known as the Jaccard similarity coefficient, is a statistic used for gauging the similarity and diversity of sample sets. It was...
Jaccard is a surname. Notable people with the surname include: Auguste Jaccard (1833–1895), Swiss geologist and paleontologist Fernand Jaccard (1907–2008)...
(private scholar) John R. Hendricks (meteorologist) Anthony Hill (painter) PaulJaccard (botanist) Alfred Bray Kempe (lawyer) Thomas Kirkman (church rector)...
dispute with the Swiss botanist and phytogeographer PaulJaccard over the interpretation of Jaccard's species-to-genus ratio. Palmgren had observed a decrease...
respectively. This index was invented in 1902 by the Swiss botanist PaulJaccard. Under a random distribution the expected value of J is J = 1 A ( 1 A...
Switzerland Carl Schroeter, Switzerland Josias Braun-Blanquet, Switzerland PaulJaccard, Switzerland The Fourth International Phytogeographic Excursion was held...
Bonnier include Henri Devaux, Maurice Bouly de Lesdain, Paul Becquerel, Louis Emberger, PaulJaccard, and Albert Maige among others. Wikimedia Commons has...
Dictionnaire commenté de la Collaboration française, 1997 Nelly Archondoulis-Jaccard,Christian Delporte,Annie Duprat, L'Événement : Images, représentations...
Dumoulin-Borie in 1838 (who was executed). The court translator, Francois Jaccard, a Catholic who had been kept as a prisoner for years and was extremely...
by Alfred Jaccard 1931: Omega achieves 1st place in all 6 categories at observatory trials in Geneva, movements, regulated by Alfred Jaccard 1933: A Cal...
Creative Commons Attribution 3.0 International License. Sigman, Daniel M.; Jaccard, Samuel L.; Haug, Gerald H. (2004). "Polar ocean stratification in a cold...
faster than species and thereby refuting PaulJaccard's interpretation of the species-to-genus ratio in Jaccard's dispute with Alvar Palmgren. Maillefer's...
Homology of sequences in genetics Hamming distance Hunt–Szymanski algorithm Jaccard index Jaro–Winkler distance Locality-sensitive hashing Longest common subsequence...
Adam P.; Haug, Gerald H.; Jaccard, Samuel L.; Martínez-García, Alfredo; Pälike, Heiko; Pancost, Richard D.; Wilson, Paul A. (2017-12-12). "Causes of...
New York: P. Lang, 1987 ISBN 978-0-8204-0361-8. (in French) Jean Luc Jaccard, Manon Lescaut, le personnage-romancier, Paris: A.-G. Nizet, 1975 ISBN 2-7078-0450-9...
Archived from the original on 2 September 2016. Retrieved 16 September 2019. Jaccard, Henri (1867). Essai de Toponymie. La Société d'Histoire de la Suisse Romande...
September 1838) Peter Nguyễn Văn Tự [pl] (c. 1796 – 5 September 1838) Francis Jaccard [pl], MEP (6 September 1799 – 21 September 1838) Thomas Trần Văn Thiện [pl]...
Difference (set theory) Exclusive or Fuzzy set Intersection (set theory) Jaccard index List of set identities and relations Logical graph Separable sigma...
License Archived 23 February 2011 at the Wayback Machine. Sigman, Daniel M.; Jaccard, Samuel L.; Haug, Gerald H. (2004). "Polar ocean stratification in a cold...
Joris Ivens James Ivory Top of page Jacques Jaccard David Jackson Dianne Jackson Michael Jackson Mick Jackson Paul Jackson Peter Jackson Wilfred Jackson Gregory...
Barb; Ebert, Beth; Ferro, Chris; Jolliffe, Ian; Koh, Tieh-Yong; Roebber, Paul; Stephenson, David (2015-01-26). "WWRP/WGNE Joint Working Group on Forecast...
November 27, 2023. Retrieved December 24, 2023. Kevin G. Hall (OCCRP); Nathan Jaccard (OCCRP); Jacqueline Charles (Miami Herald); Juanita Vélez (CLIP-OCCRP)...
Barb; Ebert, Beth; Ferro, Chris; Jolliffe, Ian; Koh, Tieh-Yong; Roebber, Paul; Stephenson, David (2015-01-26). "WWRP/WGNE Joint Working Group on Forecast...
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