Random projection

Random projection is a technique used to reduce the amount of data we have to deal with. It works by taking a bigger set of data (like a really long spreadsheet) and then randomly selecting a smaller set of that data. This way, we can work with a smaller amount of data, but still get to keep some of the important information from the bigger set. It can be used when we don't need all the data from the bigger set or when it would take too long to process.