1. Name and briefly describe four of the most popular commercial software tools used for text mining.

2. What are the search engines? What are the Search Engine Optimization methods? Support your answer with examples.

3. The choice phase of problem solving involves a search for an appropriate courseof action (among those identified during the design phase) that can solve the problem.Several major search approaches are possible, depending on the criteria (or criterion) of choice and the type of modeling approach used. Describe those search approaches in detail.

4. The development of expert systems is often described as a tedious process. What activities does it typically include?