Text Cleaning

• RegExr, an online tool to learn, build, and test Regular Expressions
• Regex lessons
• Regex cheat sheet
• Ted Underwood, DataMunging, example of Python scripts used to clean and normalize OCR

Topic Modeling

• Megan R. Brett, Topic Modeling: A Basic Introduction
• Ted Underwood, Topic Modeling Made Just Simple Enough
• Scott Weingart, Topic Modeling for Humanists: A Guided Tour, Topic Modeling and Text Analysis
• MALLET (Developed by David Mimno)
  • Programming Historian Guide to MALLET
• David M. Blei et al (2003): Latent Dirichlet Allocation