How to calculate the average precision (AP) for each adopted query and the mean average precision (MAP), based on both arithmetic and geometric means, must be calculated in terms of interpolated precision. In the calculation of AP, documents classified to be relevant or somewhat relevant are treated as the same. Note that the calculation of AP is computed from all pen for n= 1, 2, ..., 10. Besides, the normalized discounted cumulative gain must be computed based on the retrieval results of each query. (With calculation process) Regarding the information needs for testing the IRS, use TWO from the following list: Makerspace in education (e.g. use and design) Academic help-seeking behaviour of university students