Relevance Feedback and Deep Neural Network-Based Semantic Method for Query Expansion

Table 8

MAP comparison of the proposed model with other models.

Model	MAP
Original query	0.2779
Query expansion using the Bo1 model	0.3302
Query expansion using the Bo1 model	0.3301
Query expansion using the chi-square model	0.2912
Query expansion using the KL divergence model	0.3317
Query expansion using the proposed model	0.3568