empirical
31Empirical reflectance retrieval — is a technique in satellite imaging for determining the reflectance of unknown targets by comparison with those areas whose reflectance is independently known. The concept of Empirical Reflectance Retrieval was developed to address the difficulty …
32Empirical treatment — is a medical treatment not derived from the scientific method, but derived from observation, survey or common use.In the medical profession, the term is also used when treatment is started before a diagnosis is confirmed (example: antibiotics)… …
33empirical formula — n. a chemical formula which gives the composition of elements in a molecule in their lowest relative proportions but does not specify the structural arrangement or true molecular weight (Ex.: CH for benzene or acetylene) …
34Empirical Bayes method — In statistics, empirical Bayes methods are a class of methods which use empirical data to evaluate / approximate the conditional probability distributions that arise from Bayes theorem. These methods allow one to estimate quantities… …
35Empirical measure — In probability theory, an empirical measure is a random measure arising from a particular realization of a (usually finite) sequence of random variables. The precise definition is found below. Empirical measures are relevant to mathematical… …
36Empirical process — The study of empirical processes is a branch of mathematical statistics and a sub area of probability theory. It is a generalization of the central limit theorem for empirical measures. DefinitionIt is known that under certain conditions… …
37Empirical formula — This article is about analytical chemistry. For observation rather than theory, see Empirical relationship. In chemistry, the empirical formula of a chemical compound is the simplest whole number ratio of atoms of each element present in a… …
38Empirical relationship — In science, an empirical relationship is one based solely on observation rather than theory. An empirical relationship requires only confirmatory data irrespective of theoretical basis. Sometimes theoretical explanations for what were initially… …
39Empirical Duration — The calculation of a bond s duration based on historical data. Empirical duration is estimated statistically using historical market based bond prices and historical market based Treasury yields. When the historical yields change, the historical… …
40Empirical Probability — A form of probability that is based on some event occurring, which is calculated using collected empirical evidence. An empirical probability is closely related to the relative frequency in a given probability distribution. In order for a theory… …
