1. In your own words, define text categorization. Discuss the two main approaches of text classification. 2. What is deception detection? How will the application of text mining help provide security?...

1. In your own words, define text categorization. Discuss the two main approaches of text classification.

2. What is deception detection? How will the application of text mining help provide security?

3. What does it mean to induce structure into the text-based data? Discuss the alternative ways of inducing structure into text-based data.