similarity coefficient

См. также в других словарях:

• Cosine similarity — is a measure of similarity between two vectors by measuring the cosine of the angle between them. The cosine of 0 is 1, and less than 1 for any other angle. The cosine of the angle between two vectors thus determines whether two vectors are… …   Wikipedia

• Sørensen similarity index — The Sørensen index, also known as Sørensen’s similarity coefficient, is a statistic used for comparing the similarity of two samples. It was developed by the botanist Thorvald Sørensen and published in 1948 [Sørensen, T. (1948) A method of… …   Wikipedia

• Dice's coefficient — Dice s coefficient, named after Lee Raymond Dice[1] and also known as the Dice coefficient, is a similarity measure over sets: It is identical to the Sørensen similarity index, and is occasionally referred to as the Sørensen Dice coefficient. It… …   Wikipedia

• Chemical similarity — (or molecular similarity) refers to the similarity of chemical elements, molecules or chemical compounds with respect to either structural or functional qualities, i.e. the effect that the chemical compound has on reaction partners in anorganic… …   Wikipedia

• Overlap coefficient — The overlap coefficient is a similarity measure related to the Jaccard index that computes the overlap between two sets which is defined as follows: If set X is a subset of Y or the converse then the overlap coefficient is equal to one.… …   Wikipedia

• Partition coefficient — In chemistry and the pharmaceutical sciences, a partition (P) or distribution coefficient (D) is the ratio of concentrations of a compound in the two phases of a mixture of two immiscible solvents at equilibrium.[1] The terms gas/liquid partition …   Wikipedia

• Jaccard index — The Jaccard index, also known as the Jaccard similarity coefficient (originally coined coefficient de communauté by Paul Jaccard), is a statistic used for comparing the similarity and diversity of sample sets.The Jaccard coefficient measures… …   Wikipedia

• Коэффициент Охаи — Мера Охаи  бинарная мера сходства, предложенная Акирой Охаи в 1957 году.[1] В дальнейшем была развита Дж. Баркманом.[2] Фамилия автора коэффициента в литературе переводилась как: Очиаи, Отиаи и т. п. Сам автор (Охаи) утверждает,… …   Википедия

• MinHash — In computer science, MinHash (or the min wise independent permutations locality sensitive hashing scheme) is a technique for quickly estimating how similar two sets are. The scheme was invented by Andrei Broder (1997),[1] and initially used… …   Wikipedia

• Dst+ — Dice s similarity coefficient …   Medical dictionary

• Dst+ — • Dice s similarity coefficient …   Dictionary of medical acronyms & abbreviations