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Table 6

Experimental results for the discussion forum data set (IAC_v2) (bold are best scores).

Experiment	S			NS
Experiment	P	R	F1	P	R	F1
disc_bl^ct	65.55	66.67	66.10	66.10	64.96	65.52
dics_bl^ct+pt	63.32	61.97	62.63	62.77	64.10	63.50
tf-idf_bl^ct	66.07	63.25	64.63	64.75	67.52	66.11
tf-idf_bl^ct+pt	63.95	63.68	63.81	63.83	64.10	63.97
LSTM^ct	67.90	66.23	67.10	67.08	68.80	67.93
LSTM^ct+pt	65.16	67.95	66.53	66.52	63.68	65.07
LSTM^ct + LSTM^pt	66.19	79.49	72.23	74.33	59.40	66.03
LSTM^conditional	70.03	76.92	73.32	74.41	67.10	70.56
LSTM^ct_{a_s}	69.45	70.94	70.19	70.30	68.80	69.45
LSTM^{ct_{a_s}+pt_{a_s}}	64.46	69.33	66.81	67.61	62.61	65.01
LSTM^ct_{a_s} + LSTM^pt_{a_s}	66.90	82.05	73.70	76.80	59.40	66.99
LSTM^ct_{a_w+s} + LSTM^pt_{a_w+s}	65.90	74.35	69.88	70.59	61.53	65.75

Experiment	S			NS
Experiment	P	R	F1	P	R	F1
disc_bl^ct	65.55	66.67	66.10	66.10	64.96	65.52
dics_bl^ct+pt	63.32	61.97	62.63	62.77	64.10	63.50
tf-idf_bl^ct	66.07	63.25	64.63	64.75	67.52	66.11
tf-idf_bl^ct+pt	63.95	63.68	63.81	63.83	64.10	63.97
LSTM^ct	67.90	66.23	67.10	67.08	68.80	67.93
LSTM^ct+pt	65.16	67.95	66.53	66.52	63.68	65.07
LSTM^ct + LSTM^pt	66.19	79.49	72.23	74.33	59.40	66.03
LSTM^conditional	70.03	76.92	73.32	74.41	67.10	70.56
LSTM^ct_{a_s}	69.45	70.94	70.19	70.30	68.80	69.45
LSTM^{ct_{a_s}+pt_{a_s}}	64.46	69.33	66.81	67.61	62.61	65.01
LSTM^ct_{a_s} + LSTM^pt_{a_s}	66.90	82.05	73.70	76.80	59.40	66.99
LSTM^ct_{a_w+s} + LSTM^pt_{a_w+s}	65.90	74.35	69.88	70.59	61.53	65.75