Chapter+3+Precision+and+Recall

Names: Jon Stalnecker & Sean Kydd - When searching for the recipe for a chocolate muffin recipe recall is more important, because you want to get all or nearly all relevant documents. This will give you a general idea of the recipes. It is better to have several muffin recipes appear rather than a single recipe to ensure you find the one you were looking for. - When searching for your library's website precision is more important, because you to find a certain website or document, which you are looking for, and not wade through lots of non-relevant pages. - With the increase of data the accuracy of retrieval falls. Precision stays high, however recall falls drastically. For a better view of this reference page 50, the last paragraph on the page in the book. - This means that the user will be able to find sets of general ideas and similarities much easier than they will be able to find specific sites. With a large increase of data only 1 in 5 relevant documents will appear.
 * Which is more important, precision or recall, for searching for a recipe for chocolate muffins? Why?
 * Which is more important, precision or recall, for searching for the web site of your local library? Why?
 * What happens to precision and recall as the size of the data collection grows?
 * What does this (previous answer) mean to users who are searching large data sets?