PerAnSel:  A  Novel Deep Neural Network-Based System for Persian Question Answering

Table 15

Error analysis on the PERSEL method.

Interrogative word	Percent	MRR without QC (%)	MRR with QC (%)
What	23.2	84.9	91.8
How	13.2	85.6	93.9
When	8.30	90.3	96.3
Where	21.1	93.3	98.1
Who	13.0	91.5	97.6
Which	20.7	94.6	99.0
Why	0.60	16.6	16.6