Examlex
John Brown's raid on Harpers Ferry was supported by the Republican Party.
Nonresponse Bias
A form of bias in survey data resulting from the difference between those who respond to the survey and those who do not, potentially skewing the results.
Sentiment Analysis
The computational process of identifying and categorizing opinions expressed in a piece of text to understand the writer's attitude.
Word-Phrase Dictionary
A reference source in print or digital format containing words and their meanings, phrases, or idioms.
Opinion Mining
The use of natural language processing, text analysis, and computational linguistics to identify, extract, and study subjective information and sentiments from text data.
Q34: During the 1870s and 1880s, most of
Q50: In 1864, General William T. Sherman's "March
Q65: Plains Indians were formidable foes of white
Q71: Prior to 1860, hostility among native-born Americans
Q72: In the 1840s in the United States,
Q78: The admission of California into the United
Q82: Reform movements emerged in America in the
Q108: The Sand Creek Massacre was a rare
Q117: To John D. Rockefeller, the great "curse"
Q119: Carnegie Steel was a good example of