require 'kaldi_io'
gconf = {lrate = 0.8, wcost = 1e-6, momentum = 0.9, frm_ext = 5,
tr_scp = "ark:/speechlab/tools/KALDI/kaldi-master/src/featbin/copy-feats " ..
"scp:/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/train.scp ark:- |",
cv_scp = "ark:/speechlab/tools/KALDI/kaldi-master/src/featbin/copy-feats " ..
"scp:/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/cv.scp ark:- |",
initialized_param = {"/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/nnet_init.nerv",
"/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/nnet_output.nerv",
"/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/nnet_trans.nerv"},
decode_param = {"/speechlab/users/mfy43/timit/nnet_init_20160229015745_iter_13_lr0.013437_tr72.434_cv58.729.nerv",
"/speechlab/users/mfy43/timit/s5/exp/dnn4_nerv_prepare/nnet_trans.nerv"}}
function make_layer_repo(param_repo)
local layer_repo = nerv.LayerRepo(
{
-- global transf
["nerv.BiasLayer"] =
{
blayer1 = {{bias = "bias0"}, {dim_in = {440}, dim_out = {440}}}
},
["nerv.WindowLayer"] =
{
wlayer1 = {{window = "window0"}, {dim_in = {440}, dim_out = {440}}}
},
-- biased linearity
["nerv.AffineLayer"] =
{
affine0 = {{ltp = "affine0_ltp", bp = "affine0_bp"},
{dim_in = {440}, dim_out = {1024}}},
affine1 = {{ltp = "affine1_ltp", bp = "affine1_bp"},
{dim_in = {1024}, dim_out = {1024}}},
affine2 = {{ltp = "affine2_ltp", bp = "affine2_bp"},
{dim_in = {1024}, dim_out = {1024}}},
affine3 = {{ltp = "affine3_ltp", bp = "affine3_bp"},
{dim_in = {1024}, dim_out = {1024}}},
affine4 = {{ltp = "affine4_ltp", bp = "affine4_bp"},
{dim_in = {1024}, dim_out = {1024}}},
affine5 = {{ltp = "affine5_ltp", bp = "affine5_bp"},
{dim_in = {1024}, dim_out = {1024}}},
affine6 = {{ltp = "affine6_ltp", bp = "affine6_bp"},
{dim_in = {1024}, dim_out = {1959}}}
},
["nerv.SigmoidLayer"] =
{
sigmoid0 = {{}, {dim_in = {1024}, dim_out = {1024}}},
sigmoid1 = {{}, {dim_in = {1024}, dim_out = {1024}}},
sigmoid2 = {{}, {dim_in = {1024}, dim_out = {1024}}},
sigmoid3 = {{}, {dim_in = {1024}, dim_out = {1024}}},
sigmoid4 = {{}, {dim_in = {1024}, dim_out = {1024}}},
sigmoid5 = {{}, {dim_in = {1024}, dim_out = {1024}}}
},
["nerv.SoftmaxCELayer"] = -- softmax + ce criterion layer for finetune output
{
ce_crit = {{}, {dim_in = {1959, 1}, dim_out = {1}, compressed = true}}
},
["nerv.SoftmaxLayer"] = -- softmax for decode output
{
softmax = {{}, {dim_in = {1959}, dim_out = {1959}}}
}
}, param_repo, gconf)
layer_repo:add_layers(
{
["nerv.DAGLayer"] =
{
global_transf = {{}, {
dim_in = {440}, dim_out = {440},
sub_layers = layer_repo,
connections = {
["<input>[1]"] = "blayer1[1]",
["blayer1[1]"] = "wlayer1[1]",
["wlayer1[1]"] = "<output>[1]"
}
}},
main = {{}, {
dim_in = {440}, dim_out = {1959},
sub_layers = layer_repo,
connections = {
["<input>[1]"] = "affine0[1]",
["affine0[1]"] = "sigmoid0[1]",
["sigmoid0[1]"] = "affine1[1]",
["affine1[1]"] = "sigmoid1[1]",
["sigmoid1[1]"] = "affine2[1]",
["affine2[1]"] = "sigmoid2[1]",
["sigmoid2[1]"] = "affine3[1]",
["affine3[1]"] = "sigmoid3[1]",
["sigmoid3[1]"] = "affine4[1]",
["affine4[1]"] = "sigmoid4[1]",
["sigmoid4[1]"] = "affine5[1]",
["affine5[1]"] = "sigmoid5[1]",
["sigmoid5[1]"] = "affine6[1]",
["affine6[1]"] = "<output>[1]"
}
}}
}
}, param_repo, gconf)
layer_repo:add_layers(
{
["nerv.DAGLayer"] =
{
ce_output = {{}, {
dim_in = {440, 1}, dim_out = {1},
sub_layers = layer_repo,
connections = {
["<input>[1]"] = "main[1]",
["main[1]"] = "ce_crit[1]",
["<input>[2]"] = "ce_crit[2]",
["ce_crit[1]"] = "<output>[1]"
}
}},
softmax_output = {{}, {
dim_in = {440}, dim_out = {1959},
sub_layers = layer_repo,
connections = {
["<input>[1]"] = "main[1]",
["main[1]"] = "softmax[1]",
["softmax[1]"] = "<output>[1]"
}
}}
}
}, param_repo, gconf)
return layer_repo
end
function get_network(layer_repo)
return layer_repo:get_layer("ce_output")
end
function get_decode_network(layer_repo)
return layer_repo:get_layer("softmax_output")
end
function get_global_transf(layer_repo)
return layer_repo:get_layer("global_transf")
end
function make_readers(scp_file, layer_repo)
return {
{reader = nerv.KaldiReader(gconf,
{
id = "main_scp",
feature_rspecifier = scp_file,
conf_file = gconf.htk_conf,
frm_ext = gconf.frm_ext,
mlfs = {
phone_state = {
targets_rspecifier = "ark:/speechlab/tools/KALDI/kaldi-master/src/bin/ali-to-pdf " ..
"/speechlab/users/mfy43/timit/s5/exp/tri3_ali/final.mdl " ..
"\"ark:gunzip -c /speechlab/users/mfy43/timit/s5/exp/tri3_ali/ali.*.gz |\" " ..
"ark:- | " ..
"/speechlab/tools/KALDI/kaldi-master/src/bin/ali-to-post " ..
"ark:- ark:- |",
format = "map"
}
}
}),
data = {main_scp = 440, phone_state = 1}}
}
end
function make_decode_readers(scp_file, layer_repo)
return {
{reader = nerv.KaldiReader(gconf,
{
id = "main_scp",
feature_rspecifier = scp_file,
conf_file = gconf.htk_conf,
frm_ext = gconf.frm_ext,
mlfs = {},
need_key = true
}),
data = {main_scp = 440, phone_state = 1}}
}
end
function make_buffer(readers)
return nerv.SGDBuffer(gconf,
{
buffer_size = gconf.buffer_size,
batch_size = gconf.batch_size,
randomize = gconf.randomize,
readers = readers,
use_gpu = true
})
end
function get_input_order()
return {{id = "main_scp", global_transf = true},
{id = "phone_state"}}
end
function get_decode_input_order()
return {{id = "main_scp", global_transf = true}}
end
function get_accuracy(layer_repo)
local ce_crit = layer_repo:get_layer("ce_crit")
return ce_crit.total_correct / ce_crit.total_frames * 100
end
function print_stat(layer_repo)
local ce_crit = layer_repo:get_layer("ce_crit")
nerv.info("*** training stat begin ***")
nerv.printf("cross entropy:\t\t%.8f\n", ce_crit.total_ce)
nerv.printf("correct:\t\t%d\n", ce_crit.total_correct)
nerv.printf("frames:\t\t\t%d\n", ce_crit.total_frames)
nerv.printf("err/frm:\t\t%.8f\n", ce_crit.total_ce / ce_crit.total_frames)
nerv.printf("accuracy:\t\t%.3f%%\n", get_accuracy(layer_repo))
nerv.info("*** training stat end ***")
end