👉 In the context of information retrieval, "preinformation" refers to the initial phase or stage preceding the actual data extraction process. This can include a variety of stages such as preprocessing, coding, and validation. Preprocessing involves cleaning, transforming, and normalizing the input data before it is used for further analysis. Coding involves assigning numerical values to each piece of information in order to make it easier to work with and understand. Validation is the final step where the preprocessed data is tested on a test
