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3 天前 · Amazon.com, Inc.,[1] doing business as Amazon (/ˈæməzɒn/, AM-ə-zon; UK also /ˈæməzən/, AM-ə-zən), is an American multinational technology company, engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence.[5] It is considered one of the Big Five American technology companies; the ...
6 天前 · 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 components) capturing the largest variation in the data can be easily identified.
2024年5月23日 · e. In statistics, linear regression is a statistical model which estimates the linear relationship between a scalar response and one or more explanatory variables (also known as dependent and independent variables ). The case of one explanatory variable is called simple linear regression; for more than one, the process is called multiple linear ...
2 天前 · Sigmund Freud (/ f r ɔɪ d / FROYD, German: [ˈziːkmʊnt ˈfrɔʏt]; born Sigismund Schlomo Freud; 6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis, a clinical method for evaluating and treating pathologies seen as originating from conflicts in the psyche, through dialogue between patient and psychoanalyst, and the distinctive theory of mind and ...
2024年5月23日 · Pearson correlation coefficient. Several sets of ( x , y) points, with the correlation coefficient of x and y for each set. The correlation reflects the strength and direction of a linear relationship (top row), but not the slope of that relationship (middle), nor many aspects of nonlinear relationships (bottom).
2 天前 · George Washington (February 22, 1732 – December 14, 1799) was an American Founding Father, military officer, and politician who served as the first president of the United States from 1789 to 1797. Appointed by the Second Continental Congress as commander of the Continental Army in 1775, Washington led Patriot forces to victory in the American Revolutionary War and then served as president ...
1 天前 · Carl Gustav Jung (/jʊŋ/ YUUNG;[1][2] German: [kaʁl ˈjʊŋ]; 26 July 1875 – 6 June 1961) was a Swiss psychiatrist and psychotherapist[a] who founded analytical psychology. He was a prolific author, illustrator, and correspondent, and a complex and controversial character, perhaps best known through his "autobiography" Memories, Dreams ...
