This book starts from the classic recommendation algorithms, introduces readers to the basic principles and main concepts of the traditional algorithms, and analyzes their advantages and limitations. Then, it addresses the fundamentals of deep learning, focusing on the deep-learning-based technology used, and analyzes problems arising in the theory and practice of recommender systems, helping readers gain a deeper understanding of the cutting-edge technology used in these systems. Lastly, ...

Riis, som præsident Theodore Roosevelt kaldte New Yorks nyttigste borger, skrev i sin tid tre dagbøger. Den ene er gået tabt, men de to andre udgives nu for første gang. De handler om hans ulykkelige kærlighed til Elisabeth Giørtz fra hjembyen Ribe og skildrer de ubarmhjertige vilkår, der mødte de hundredtusinde immigranter, der ankom til Amerika i slutningen af 1800-tallet.