Mass Collaboration-Driven Method for Recommending Product Ideas Based on Dempster-Shafer Theory of Evidence

Table 4

Discounted BPA functions.

		Criterion  c1			Criterion  c2			Criterion  c3			Criterion  c4
		θ1	θ2		θ1	θ2		θ1	θ2		θ1	θ2
E1	a1	0.0102	0.0238	0.9660	0.0504	0.0252	0.9244	0.0104	0.0416	0.9480	0.0348	0.0464	0.9188
	a2	0.0136	0.0136	0.9728	0.0588	0.0168	0.9244	0.0260	0.0156	0.9584	0.0232	0.0812	0.8956
	a3	0.0102	0.0204	0.9694	0.0420	0.0252	0.9328	0.0364	0.0104	0.9532	0.0580	0.0232	0.9188
E2	a1	0.0272	0.0340	0.9388	0.0336	0.0784	0.8880	0.0650	0.0130	0.9220	0.0609	0.0087	0.9304
	a2	0.0612	0.0068	0.9320	0.0336	0.0560	0.9104	0.0910	0.0130	0.8960	0.0435	0.0174	0.9391
	a3	0.0204	0.0476	0.9320	0.0336	0.0672	0.8992	0.0910	0.0260	0.8830	0.0435	0.0261	0.9304
E3	a1	0.0612	0.0000	0.9388	0.0420	0.0420	0.9160	0.0546	0.0156	0.9298	0.0348	0.0261	0.9391
	a2	0.0204	0.0272	0.9524	0.0420	0.0252	0.9328	0.0312	0.0468	0.9220	0.0174	0.0609	0.9217
	a3	0.0340	0.0272	0.9388	0.0504	0.0252	0.9244	0.0546	0.0156	0.9298	0.0348	0.0522	0.9130