λ0	λ1	λ2	λ3
0.140	0.429	0.245	0.186

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λ0	λ1	λ2	λ3
0.000	0.000	0.000	1.000

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Boost	λ0	λ1	λ2	λ3	Cross entr.	Perplexity
0	0.140	0.429	0.245	0.186	10.220	1192.703
0.1	0.126	0.386	0.220	0.267	10.224	1196.392
0.2	0.112	0.343	0.196	0.349	10.254	1221.057
0.3	0.098	0.300	0.171	0.430	10.306	1265.949
0.4	0.084	0.257	0.147	0.512	10.382	1334.214
0.5	0.070	0.214	0.122	0.593	10.485	1433.491
0.6	0.056	0.172	0.098	0.674	10.625	1579.323
0.7	0.042	0.129	0.073	0.756	10.818	1805.336
0.8	0.028	0.086	0.049	0.837	11.103	2199.220
0.9	0.014	0.043	0.024	0.919	11.600	3104.684
0.95	0.007	0.021	0.012	0.959	12.092	4367.084
0.99	0.001	0.004	0.002	0.992	13.165	9181.867

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Discount	λ0	λ1	λ2	λ3	Cross entr.	Perplexity
1	0.140	0.429	0.245	0.186	10.220	1192.703
0.9	0.144	0.439	0.250	0.167	10.223	1195.343
0.8	0.147	0.448	0.256	0.149	10.228	1199.563
0.7	0.150	0.458	0.261	0.130	10.236	1205.592
0.6	0.153	0.468	0.267	0.112	10.245	1213.751
0.5	0.156	0.478	0.273	0.093	10.258	1224.509
0.4	0.160	0.488	0.278	0.074	10.274	1238.594
0.3	0.163	0.497	0.284	0.056	10.296	1257.237
0.2	0.166	0.507	0.289	0.037	10.325	1282.837
0.1	0.169	0.517	0.295	0.019	10.368	1321.596
0	0.172	0.527	0.301	0.000	10.489	1436.721

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Coverage
Pos	Un. Unigram	Un. Bigram	Un. Trigram	Unigram	Bigram	Trigram
2000	13.369	3.591	0.788	8.214	3.135	0.765
4000	21.875	7.510	1.691	17.283	7.314	1.955
6000	32.189	11.429	2.779	25.957	10.989	3.090
8000	41.900	14.806	3.448	34.307	14.319	3.875
10000	50.771	18.706	5.003	42.746	18.183	5.519
12000	59.473	23.349	7.901	51.235	23.043	8.654
14000	67.026	26.796	8.798	59.809	26.847	9.759
16000	73.669	30.834	10.473	68.783	32.042	12.204
18000	76.850	32.894	11.686	78.152	38.591	16.743
20000	84.025	36.001	12.284	86.441	42.036	17.538
20003	84.025	36.007	12.289	86.446	42.041	17.543

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Data	Unigram	Bigram	Trigram
train	35304	112415	145065
heldout	12863	31663	37122
test	7136	15872	18390