Table 11.

P-values for recall results presented in Table 10

P-values, recall	Medical	Conjoint	Clinical	Medical	Conjoint	Disjoint
(synonym task)	space	corpus	ensemble	ensemble	corp. ens.	corp. ens.
Clinical space	0.011	1.000	0.057	0.885	0.003	0.000
Medical space	-	0.004	0.000	0.000	0.000	0.000
Conjoint corpus	-	-	0.210	1.000	0.001	0.000
Clinical ensemble	-	-	-	0.480	0.189	0.001
Medical ensemble	-	-	-	-	0.047	0.000
Conjoint corp. ens.	-	-	-	-	-	0.041

P-values for the differences between the recall results on the synonym task for the semantic spaces/ensembles presented in Table 10. P-values showing a statistically significant difference (p-value < 0.05) are presented in bold-face.

P-values for the post-processing and for the abbr →exp and exp →abbr are not shown in the table. However, for the significance level p-value < 0.05, there were no statistically significant recall difference between the standard Disjoint Corpora Ensemble and the post-processing version for any of the three tasks (p-value = 0.25 for abbr →exp and p-value = 0.062 for exp →abbr). When testing the recall difference between the pairs of semantic spaces/ensembles shown in Table 10 for the abbr →exp task, there was only a significant difference for the pairs Medical Space vs. Clinical Ensemble (p-value = 0.039), Medical Space vs. Disjoint Corpora Ensemble (p-value = 0.004) and Medical Ensemble vs. Disjoint Corpora Ensemble (p-value = 0.039). For the exp →abbr task, there were no statistically significant differences.