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Zhehuai Chen and others added 11 commits March 12, 2019 08:16
change to use beam rather than lattice_beam in decoding, use beam even in pruneforwardlink;  use lattice_beam in the end of lattice processing
no perf improvement
update toks_shadowing_mod except in the end of decoding

experimental details are in sheet "experiment 1 (updated)" here
https://docs.google.com/spreadsheets/d/1By1M6qtcIk_bIKfXNPR2XGj5Fzgk-mcUrhcbaynS3xA/edit#gid=2073566119
…l introduce some bugs (TODO);

still use lattice_beam in expand since make no diff;
exp/chain/tdnn1e_sp/decode_lang_test_bgsmall_tgmed_dev_clean_2.lang_test_tgmed.otf.2b2a.c3.a.conf.lat2gen-biglm-faster-mapped

test 1: script_biglm/run.bg.med.1b2.sh
test 2: script_biglm/run.fglarge.1b4.sh

12.32   1.62906 4.68117 263091  3.70E+06        1089    2.1249  21.7787
exp/chain/tdnn1e_sp/decode_lang_test_bgsmall_tgmed_dev_clean_2.lang_test_tgmed.otf.2b2a.c3.b.conf.lat2gen-biglm-faster-mapped
12.42   1.62892 3.67576 161603  2.77E+06        1089    2.43915 18.2526
exp/chain/tdnn1e_sp/decode_lang_test_bgsmall_tgmed_dev_clean_2.lang_test_tgmed.otf.2b2a.c3.c.conf.lat2gen-biglm-faster-mapped
12.43   1.62838 2.37315 75335.1 1.78E+06        1089    3.07761 13.5512
exp/chain/tdnn1e_sp/decode_lang_test_bgsmall_tgmed_dev_clean_2.lang_test_tgmed.otf.2b2a.c3.d.conf.lat2gen-biglm-faster-mapped
12.53   1.62778 1.41824 46028.1 1.33E+06        1089    3.60634 10.9672
exp/chain/tdnn1e_sp/decode_lang_test_bgsmall_tgmed_dev_clean_2.lang_test_tgmed.otf.2b2a.c3.e.conf.lat2gen-biglm-faster-mapped
13.17   1.6258  0.823513        18429.3 736366  1089    4.93815 7.19933
… do erase in PruneTokensForFrame

scripts_biglm/run.fasterlm.ac.6e3.sh
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