A question-entailment approach to question answering

BMC Bioinformatics

Table 6 LiveQA Measures: Average Score (main score), Success@i+ and Precision@i+ on LiveQA’17 Test Data

Measures	IR-based System	IR+RQE System	LiveQA’17 Best Results	LiveQA’17 Median Results
avgScore(0-3)	0.711	0.827	0.637	0.431
succ@2+	0.442	0.461	0.392	0.245
succ@3+	0.192	0.25	0.265	0.142
succ@4+	0.077	0.115	0.098	0.059
prec@2+	0.46	0.475	0.404	0.331
prec@3+	0.2	0.257	0.273	0.178
prec@4+	0.08	0.119	0.101	0.077

Evaluation of the first retrieved answer for each question. N.B. Evaluating the RQE System alone is not relevant as explained previously (“RQE-based QA Approach” section). The best score are in bold

ISSN: 1471-2105