HPM: A Hybrid Model for User’s Behavior Prediction Based on N-Gram Parsing and Access Logs

Algorithm 5

Weight calculator.

	Input: N-gram associated click-graph (NC-graph)
	Output: weighted N-grams corresponding to distinct URLs stored in matrix WL
	Begin
(1)	Create a matrix WL of order m × n//m ⟶ no. of distinct N-grams of all the queries of PL and n ⟶ no. of URLs of PL
(2)	;//elements of WL
(3)	For each URL in NC-graph do
(4)	//weight of N-gram associated with query q corresponding to URL u
(5)	For each N-gram in NC-graph do
(6)	Cn,u = Cq,u; //
(7)	;
(8)	End For
(9)	For each N-gram in NC-graph do
(10)	and //normalization of calculated weights
(11)	Store in WL;
(12)	EndFor
(13)	EndFor
(14)	Return WL;
(15)	End