What does content analysis software utilize to search for variations of a keyword?

Content analysis software often utilizes stemming to effectively search for variations of a keyword. Stemming is a linguistic technique that involves reducing a word to its root form, enabling the software to recognize different grammatical forms or variations of that word. For instance, if the keyword is "run," stemming allows the software to identify occurrences of "running," "ran," or "runner" as related keywords. This capability enhances the accuracy of searches and analyses by ensuring that all relevant variations contribute to the analysis, making the research findings more comprehensive.

The other options do not serve this specific function in the context of content analysis. Excluding refers to leaving out certain words or data, aliasing typically involves creating alternative names for data to improve clarity, and editing relates to modifying text rather than searching for keyword variations.