Self-Organizing Maps by Teuvo Kohonen, Springer-Verlag hardcover 1995

“The Self-Organizing Map (SOM) algorithm was introduced by the author in 1981. Its theory and many applications form one of the major approaches to the contemporary artificial neural networks field, and new technologies have already been based on it. The most important practical applications are in exploratory data analysis, pattern recognition, speech analysis, robotics, industrial and medical diagnostics, instrumentation, and control, and literally hundreds of other tasks. In this monograph the mathematical preliminaries, background, basic ideas, and implications are expounded in a clear, well-organized form, accessible without prior expert knowledge. Still the contents are handled with theoretical rigor.”

The Horace Mann Readers Fourth Reader 1911 Vintage Textbook Walter L. Hervey

This is a vintage copy of “Fourth Reader” from The Horace Mann Readers series, published in 1911. Authored by Walter L. Hervey, Ph.D. and Melvin Hix, B.S., this hardcover textbook was designed for elementary school students. The book features both black and white and color illustrations throughout, including classic stories like “The Walrus and the Carpenter,” making it an excellent piece for collectors of antique textbooks, educational history, or early 20th-century children’s literature. The book shows wear consistent with its age, including scuffing and discoloration on the cover, and some age-toning on the pages, but remains a charming and historically significant item.