Figure 2From: USI: a fast and accurate approach for conceptual document annotation Impact of the variation of k with the PMRA* + USI _ filter + map set-up. Computing times are expressed in milliseconds. The highest values of the F-score and the semantic score are obtained with 10≤k≤20. Increasing the value of k over 20 would only increase the computation time while not providing better results.Back to article page