Table 4. The gap between different models on long and short datasets.

Model	Yoochoose 1/64			Diginetica
	All	Short	Long	All	Short	Long
NARM	68.32	71.44	60.79	62.58	51.22	45.75
STAMP	68.74	70.69	64.73	45.64	47.26	40.39
DSETRec	70.70	72.49	69.08	45.87	54.27	43.37
Gap			1.79 (2.47%)			2.5 (5.45%)