Research Article

Critical Segments Identification for Link Travel Speed Prediction in Urban Road Network

Algorithm 1

Critical segments identification for vehicle prediction.
(1)Input: whole segments set , history information on all segments , true vehicle speed on all segments , remaining segments set , history information on remaining segments
(2)Initialize ,
(3)while do
(4) train the machine learning model taking as samples and as labels.
(5) get the self-attention coefficient computed in
(6) remove history information on segment with lowest
(7)
(8)
(9) End while
(10)return