Machine learning–XGBoost analysis of language networks to classify patients with epilepsy

Torlay, L.; Perrone-Bertolotti, M.; Thomas, E.; Baciu, M.

doi:10.1007/s40708-017-0065-7

Brain Informatics

Table 2 A total of 135 subsets were evaluated

From: Machine learning–XGBoost analysis of language networks to classify patients with epilepsy

Task	Subset	Fronto-temporal regions (FT)	Left hemisphere	Right hemisphere	Bilateral
SEM only or PHONO only or SEM + PHONO	1	Partial F	BA 47LH	BA 47RH	BA 47LH	BA 47RH
	2	Partial F	BA 44LH, BA 45LH,	BA 44RH, BA 45RH,	BA 44LH, BA 45LH,	BA 44RH, BA 45RH,
	3	Total F	BA 44LH, BA 45LH, BA 47LH	BA 44RH, BA 45RH, BA 47RH	BA 44LH, BA 45LH, BA 47LH	BA 44RH, BA 45RH, BA 47RH
	4	Partial T	BA 21LH	BA 21RH	BA 21LH	BA 21RH
	5	Partial T	BA 22LH	BA 22RH	BA 22LH	BA 22RH
	6	Total T	BA 21LH, BA 22LH	BA 21RH, BA 22RH	BA 21LH, BA 22LH	BA 21RH, BA 22RH
	7	Partial FT	BA 21LH, BA 47LH	BA 21RH, BA 47RH	BA 21LH. BA 47LH	BA 21RH. BA 47RH
	8	Partial FT	BA 22LH, BA 47LH	BA 22RH, BA 47RH	BA 22LH, BA 47LH	BA 22RH, BA 47RH
	9	Partial FT	BA 21LH, BA 22LH, BA 47LH	BA 21RH, BA 22RH, BA 47RH	BA 21LH, BA 22LH, BA 47LH	BA 21RH, BA 22RH, BA 47RH
	10	Partial FT	BA 21LH, BA 44LH, BA 45LH	BA 21RH, BA 44RH, BA 45RH	BA 21LH, BA 44LH, BA 45LH	BA 21RH, BA 44RH, BA 45RH
	11	Partial FT	BA 22LH, BA 44LH, BA 45LH	BA 22RH, BA 44RH, BA 45RH	BA 22LH, BA 44LH, BA 45LH	BA 22RH, BA 44RH, BA 45RH
	12	Partial FT	BA 21LH, BA 22LH, BA 44LH, BA 45LH	BA 21RH, BA 22RH, BA 44RH, BA 45RH	BA 21LH, BA 22LH, BA 44LH, BA 45LH	BA 21RH, BA 22RH, BA 44RH, BA 45RH
	13	Partial FT	BA 21LH, BA 44LH, BA 45LH, BA 47LH	BA 21RH, BA 44RH, BA 45RH, BA 47RH	BA 21LH, BA 44LH, BA 45LH, BA 47LH	BA 21RH, BA 44RH, BA 45RH, BA 47RH
	14	Partial FT	BA 22LH, BA 44LH, BA 45LH, BA 47LH	BA 22RH, BA 44RH, BA 45RH, BA 47RH	BA 22LH, BA 44LH, BA 45LH, BA 47LH	BA 22RH, BA 44RH, BA 45RH, BA 47RH
	15	Total FT	BA 21LH, BA 22LH, BA 44LH, BA 45LH, BA 47LH	BA 21RH, BA 22RH, BA 44RH, BA 45RH, BA 47RH	BA 21LH, BA 22LH, BA 44LH, BA 45LH, BA 47LH	BA 21RH, BA 22RH, BA 44RH, BA 45RH, BA 47RH

Fifteen subsets were based on combinations of fronto-temporal (FT) regions according to hemisphere and task and defined as follows: (a) only frontal regions (partial subsets 1–2 and total subset 3); (b) only temporal regions (partial subsets 4–5 and total subset 6), and (c) combination of frontal and temporal regions (partial subsets 7–14 and total subset 15). These subsets were evaluated for three thematic sets according to task (semantic only, SEM only; phonological only, PHONO only; semantic and phonological combined, SEM + PHONO) and hemisphere (left hemisphere, right hemisphere and bilateral—both hemispheres)

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