Principal component analysis - Wikipedia
23 小时之前 · Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing.. The data is linearly transformed onto a new coordinate system such that the directions (principal …
Ellipse - Wikipedia
23 小时之前 · The axes are still parallel to the x- and y-axes. General ellipse. A general ellipse in the plane can be uniquely described as a bivariate quadratic equation of Cartesian …
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Quantum entanglement - Wikipedia
23 小时之前 · Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of …
Decay of the Mixed States - 道客巴巴
23 小时之前 · arXiv:0709.047v3[nlin.CD]Feb008DecayoftheMixedStatesYu.L.Bolotin∗V.A.CherkaskiyandG.I.IvashkevychA.I.AkhiezerInstituteforTheoreticalPhysicsNationalScienceCenter ...
Bali - Wikipedia
23 小时之前 · Bali (English: / ˈ b ɑː l i /; ᬩᬮᬶ) is a province of Indonesia and the westernmost of the Lesser Sunda Islands.East of Java and west of Lombok, the province includes the island of …
Queens - Wikipedia
23 小时之前 · Queens is a borough of New York City, coextensive with Queens County, in the U.S. state of New York.Located near the western end of Long Island, it is the largest of the five …
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