Information Retrieval Questions
The evaluation measure normalized precision at k (P@k) is a metric used in information retrieval to measure the precision of a search system at a given cutoff point. It calculates the proportion of relevant documents retrieved among the top k documents returned by the system. The formula for calculating P@k is:
P@k = (number of relevant documents in top k) / k
This measure helps assess the effectiveness of a search system in retrieving relevant information within the top k results.