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Table 8 Result comparison of the six approaches with the example dataset

From: Helping consumers to overcome information overload with a diversified online review subset

Approach Review subset Diversity Opinion distance Coverage
SA-DRS #7, #10, #24, #28, #30 35.94 0.186 0.75
Greedy-U #1, #2, #7, #8, #20 3.28 0.199 1.00
Greedy-Q #5, #7, #8, #20, #28 12.76 0.226 1.00
IR-CRS #1, #3, #6, #15, #17 3.01 0.052 0.75
Greedy-DRS #5, #8, #10, #12, #13 5.33 1.599 0.75
Greedy-QARS #1, #2, #3, #4, #5 2.72 0.199 0.75