Christopher Manning

A native of Georgia, William L. Dawson experienced a political awakening during World War I when he witnessed the U.S. military's unfair treatment of black soldiers. After the war, he became involved in the Republican Party in Chicago and, in 1933, won election as Second Ward Alderman. When his campaign against discrimination in housing and employment failed and he recognized that Republicans were losing power, Dawson decided to switch parties and change tactics. In 1938, he joined forces with two former Army colleagues to create an independent black wing of the Democratic Party. The plan succeeded, and within four years, Dawson was elected as a representative of the First Congressional district. Over the next decade, he became one of the most powerful black politicians of the twentieth century. Dawson was the first African American to create and sustain a powerful black Democratic faction in Chicago, to chair a standing committee in Congress, to serve as vice-chairman of the Democratic Party, and to receive a Cabinet nomination. Despite these personal achievements, Dawson was not as successful in making gains for his constituents. This detailed analysis of Dawson's career—from his work with the local Republican Party in Chicago in the 1920s to his declining years as a Congressman in Washington, D.C., four decades later—assesses the viability of electoral politics as a tool for racial advancement. Manning broadens our understanding of the development of modern American politics by outlining the strengths and limitations of black electoral leadership in the postwar era. He argues that black electoral leadership, as embodied in Dawson's political strategies, provided considerable opportunities for advancing a racially progressive agenda at the national level of the Democratic Party but faced severe limitations within Congress and could do nothing to ease systemic inequality in Chicago. This political biography will appeal to scholars of African American history, to U.S. political historians, and to those interested in black politics.

Statistical approaches to processing natural language text have become dominant in recent years. This foundational text is the first comprehensive introduction to statistical natural language processing (NLP) to appear. The book contains all the theory and algorithms needed for building NLP tools. It provides broad but rigorous coverage of mathematical and linguistic foundations, as well as detailed discussion of statistical methods, allowing students and researchers to construct their own implementations. The book covers collocation finding, word sense disambiguation, probabilistic parsing, information retrieval, and other applications.