搜尋結果
In pattern recognition, information retrieval, object detection and classification (machine learning), precision and recall are performance metrics that apply to data retrieved from a collection, corpus or sample space . Precision (also called positive predictive value) is the fraction of relevant instances among the retrieved instances.
In the current IQ scoring method, an IQ score of 100 means that the test-taker's performance on the test is of average performance in the sample of test-takers of about the same age as was used to norm the test. An IQ score of 115 means performance one standard deviation above the mean, while a score of 85 means performance one standard deviation below the mean, and so on. [5] This "deviation ...
Historically, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months. The resulting fraction ( quotient) was multiplied by 100 to obtain the IQ score. [3] For modern IQ tests, the raw score is transformed to a normal distribution with mean 100 and standard ...
It is a statistic used in the context of statistical models whose main purpose is either the prediction of future outcomes or the testing of hypotheses, on the basis of other related information.
TSMC was founded in Taiwan in 1987 by Morris Chang as the world's first dedicated semiconductor foundry. It has long been the leading company in its field. [15] [16] When Chang retired in 2018, after 31 years of TSMC leadership, Mark Liu became chairman and C. C. Wei became Chief Executive. [17] [18] It has been listed on the Taiwan Stock Exchange (TWSE: 2330) since 1993; in 1997 it became the ...
Trigonometric functions and their reciprocals on the unit circle. All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same. For sin, cos and tan the unit-length radius forms the hypotenuse of the triangle that defines them. The reciprocal identities arise as ratios of sides in the triangles where this unit line is no longer the hypotenuse ...
Shohei Ohtani (大谷 翔平 (おおたに しょうへい), Ōtani Shōhei, [oːtaɲi ɕoːheː]; born July 5, 1994) is a Japanese professional baseball pitcher and designated hitter for the Los Angeles Dodgers of Major League Baseball (MLB).
