Evaluation measures (information retrieval)

Information retrieval is important because it involves finding the most relevant information from a list of things (like websites, articles, files, or databases). Evaluation measures refer to the tools and techniques used to measure how well a search engine is performing. These measures look at how closely the results from a search engine match what the user was looking for.

To evaluate the performance of information retrieval, there are different measures that can be used. For example, precision is a measure that looks at the percentage of relevant items in the list of results. Another measure is recall, which looks at the percentage of all relevant items that were found by the search engine. Other measures like time, accuracy, and coverage can also be used.

In summary, evaluation measures are used to test how well a search engine works. They look at different factors to measure how closely the search results match what the user asked for.