1 files changed, 284 insertions, 0 deletions
diff --git a/nerv/examples/lmptb/tnn_ptb_main.lua b/nerv/examples/lmptb/tnn_ptb_main.lua
new file mode 100644
index 0000000..803ae68
--- /dev/null
+++ b/nerv/examples/lmptb/tnn_ptb_main.lua
@@ -0,0 +1,284 @@
+require 'lmptb.lmvocab'
+require 'lmptb.lmfeeder'
+require 'lmptb.lmutil'
+require 'lmptb.layer.init'
+require 'rnn.init'
+require 'lmptb.lmseqreader'
+require 'lm_trainer'
+
+--[[global function rename]]--
+local printf = nerv.printf
+local LMTrainer = nerv.LMTrainer
+--[[global function rename ends]]--
+
+--global_conf: table
+--first_time: bool
+--Returns: a ParamRepo
+function prepare_parameters(global_conf, first_time)
+    printf("%s preparing parameters...\n", global_conf.sche_log_pre) 
+    
+    if (first_time) then
+        ltp_ih = nerv.LinearTransParam("ltp_ih", global_conf)  
+        ltp_ih.trans = global_conf.cumat_type(global_conf.vocab:size(), global_conf.hidden_size) --index 0 is for zero, others correspond to vocab index(starting from 1)
+        ltp_ih.trans:generate(global_conf.param_random)
+
+        ltp_hh = nerv.LinearTransParam("ltp_hh", global_conf)
+        ltp_hh.trans = global_conf.cumat_type(global_conf.hidden_size, global_conf.hidden_size)
+        ltp_hh.trans:generate(global_conf.param_random) 
+
+        ltp_ho = nerv.LinearTransParam("ltp_ho", global_conf)
+        ltp_ho.trans = global_conf.cumat_type(global_conf.hidden_size, global_conf.vocab:size())
+        ltp_ho.trans:generate(global_conf.param_random)
+
+        bp_h = nerv.BiasParam("bp_h", global_conf)
+        bp_h.trans = global_conf.cumat_type(1, global_conf.hidden_size)
+        bp_h.trans:generate(global_conf.param_random)
+
+        bp_o = nerv.BiasParam("bp_o", global_conf)
+        bp_o.trans = global_conf.cumat_type(1, global_conf.vocab:size())
+        bp_o.trans:generate(global_conf.param_random)
+
+        local f = nerv.ChunkFile(global_conf.param_fn, 'w')
+        f:write_chunk(ltp_ih)
+        f:write_chunk(ltp_hh)
+        f:write_chunk(ltp_ho)
+        f:write_chunk(bp_h)
+        f:write_chunk(bp_o)
+        f:close()
+    end
+    
+    local paramRepo = nerv.ParamRepo()
+    paramRepo:import({global_conf.param_fn}, nil, global_conf)
+
+    printf("%s preparing parameters end.\n", global_conf.sche_log_pre)
+
+    return paramRepo
+end
+
+--global_conf: table
+--Returns: nerv.LayerRepo
+function prepare_layers(global_conf, paramRepo)
+    printf("%s preparing layers...\n", global_conf.sche_log_pre)
+
+    --local recurrentLconfig = {{["bp"] = "bp_h", ["ltp_hh"] = "ltp_hh"}, {["dim_in"] = {global_conf.hidden_size, global_conf.hidden_size}, ["dim_out"] = {global_conf.hidden_size}, ["break_id"] = global_conf.vocab:get_sen_entry().id, ["independent"] = global_conf.independent, ["clip"] = 10}}
+    local recurrentLconfig = {{["bp"] = "bp_h", ["ltp_hh"] = "ltp_hh"}, {["dim_in"] = {global_conf.hidden_size, global_conf.hidden_size}, ["dim_out"] = {global_conf.hidden_size}, ["clip"] = 10}}
+
+    local layers = {
+        ["nerv.AffineRecurrentLayer"] = {
+            ["recurrentL1"] = recurrentLconfig, 
+        },
+
+        ["nerv.SelectLinearLayer"] = {
+            ["selectL1"] = {{["ltp"] = "ltp_ih"}, {["dim_in"] = {1}, ["dim_out"] = {global_conf.hidden_size}}},
+        },
+        
+        ["nerv.SigmoidLayer"] = {
+            ["sigmoidL1"] = {{}, {["dim_in"] = {global_conf.hidden_size}, ["dim_out"] = {global_conf.hidden_size}}}
+        },
+        
+        ["nerv.CombinerLayer"] = {
+            ["combinerL1"] = {{}, {["dim_in"] = {global_conf.hidden_size}, ["dim_out"] = {global_conf.hidden_size, global_conf.hidden_size}, ["lambda"] = {1}}}
+        },
+
+        ["nerv.AffineLayer"] = {
+            ["outputL"] = {{["ltp"] = "ltp_ho", ["bp"] = "bp_o"}, {["dim_in"] = {global_conf.hidden_size}, ["dim_out"] = {global_conf.vocab:size()}}},
+        },
+
+        ["nerv.SoftmaxCELayerT"] = {
+            ["softmaxL"] = {{}, {["dim_in"] = {global_conf.vocab:size(), global_conf.vocab:size()}, ["dim_out"] = {1}}},
+        },
+    }
+    
+    --[[ --we do not need those in the new rnn framework
+    printf("%s adding %d bptt layers...\n", global_conf.sche_log_pre, global_conf.bptt)
+    for i = 1, global_conf.bptt do
+        layers["nerv.IndRecurrentLayer"]["recurrentL" .. (i + 1)] = recurrentLconfig 
+        layers["nerv.SigmoidLayer"]["sigmoidL" .. (i + 1)] = {{}, {["dim_in"] = {global_conf.hidden_size}, ["dim_out"] = {global_conf.hidden_size}}}
+        layers["nerv.SelectLinearLayer"]["selectL" .. (i + 1)] = {{["ltp"] = "ltp_ih"}, {["dim_in"] = {1}, ["dim_out"] = {global_conf.hidden_size}}}
+    end
+    --]]
+
+    local layerRepo = nerv.LayerRepo(layers, paramRepo, global_conf)
+    printf("%s preparing layers end.\n", global_conf.sche_log_pre)
+    return layerRepo
+end
+
+--global_conf: table
+--layerRepo: nerv.LayerRepo
+--Returns: a nerv.TNN
+function prepare_tnn(global_conf, layerRepo)
+    printf("%s Generate and initing TNN ...\n", global_conf.sche_log_pre)
+
+    --input: input_w, input_w, ... input_w_now, last_activation
+    local connections_t = {
+        {"<input>[1]", "selectL1[1]", 0},
+        {"selectL1[1]", "recurrentL1[1]", 0},  
+        {"recurrentL1[1]", "sigmoidL1[1]", 0},
+        {"sigmoidL1[1]", "combinerL1[1]", 0},
+        {"combinerL1[1]", "recurrentL1[2]", 1},
+        {"combinerL1[2]", "outputL[1]", 0},
+        {"outputL[1]", "softmaxL[1]", 0},
+        {"<input>[2]", "softmaxL[2]", 0},
+        {"softmaxL[1]", "<output>[1]", 0}
+    }
+
+    --[[
+    printf("%s printing DAG connections:\n", global_conf.sche_log_pre)
+    for key, value in pairs(connections_t) do
+        printf("\t%s->%s\n", key, value)
+    end
+    ]]--
+
+    local tnn = nerv.TNN("TNN", global_conf, {["dim_in"] = {1, global_conf.vocab:size()}, ["dim_out"] = {1}, ["sub_layers"] = layerRepo,
+            ["connections"] = connections_t, 
+        })
+
+    tnn:init(global_conf.batch_size, global_conf.chunk_size)
+
+    printf("%s Initing TNN end.\n", global_conf.sche_log_pre)
+    return tnn
+end
+
+function load_net(global_conf)
+    local paramRepo = prepare_parameters(global_conf, false)
+    local layerRepo = prepare_layers(global_conf, paramRepo)
+    local tnn = prepare_tnn(global_conf, layerRepo)
+    return tnn, paramRepo
+end
+
+local train_fn, valid_fn, test_fn, global_conf
+local set = arg[1] --"test"
+
+if (set == "ptb") then
+
+data_dir = '/home/slhome/txh18/workspace/nerv/nerv/nerv/examples/lmptb/PTBdata'
+train_fn = data_dir .. '/ptb.train.txt.adds'
+valid_fn = data_dir .. '/ptb.valid.txt.adds'
+test_fn = data_dir .. '/ptb.test.txt.adds'
+
+global_conf = {
+    lrate = 1, wcost = 1e-6, momentum = 0,
+    cumat_type = nerv.CuMatrixFloat,
+    mmat_type = nerv.MMatrixFloat,
+    nn_act_default = 0, 
+
+    hidden_size = 300,
+    chunk_size = 15,
+    batch_size = 10, 
+    max_iter = 30,
+    param_random = function() return (math.random() / 5 - 0.1) end,
+
+    train_fn = train_fn,
+    valid_fn = valid_fn,
+    test_fn = test_fn,
+    sche_log_pre = "[SCHEDULER]:",
+    log_w_num = 40000, --give a message when log_w_num words have been processed
+    timer = nerv.Timer()
+}
+
+else
+
+valid_fn = '/home/slhome/txh18/workspace/nerv/nerv/nerv/examples/lmptb/m-tests/some-text'
+train_fn = '/home/slhome/txh18/workspace/nerv/nerv/nerv/examples/lmptb/m-tests/some-text'
+test_fn = '/home/slhome/txh18/workspace/nerv/nerv/nerv/examples/lmptb/m-tests/some-text'
+
+global_conf = {
+    lrate = 1, wcost = 1e-6, momentum = 0,
+    cumat_type = nerv.CuMatrixFloat,
+    mmat_type = nerv.CuMatrixFloat,
+    nn_act_default = 0, 
+
+    hidden_size = 20,
+    chunk_size = 2,
+    batch_size = 3, 
+    max_iter = 3,
+    param_random = function() return (math.random() / 5 - 0.1) end,
+
+    train_fn = train_fn,
+    valid_fn = valid_fn,
+    test_fn = test_fn,
+    sche_log_pre = "[SCHEDULER]:",
+    log_w_num = 10, --give a message when log_w_num words have been processed
+    timer = nerv.Timer()
+}
+
+end
+
+global_conf.work_dir = '/home/slhome/txh18/workspace/nerv/play/dagL_test'
+global_conf.train_fn_shuf = global_conf.work_dir .. '/train_fn_shuf'
+global_conf.train_fn_shuf_bak = global_conf.train_fn_shuf .. '_bak'
+global_conf.param_fn = global_conf.work_dir .. "/params"
+
+printf("%s printing global_conf\n", global_conf.sche_log_pre)
+for id, value in pairs(global_conf) do
+    print(id, value)
+end
+nerv.LMUtil.wait(2)
+
+printf("%s creating work_dir...\n", global_conf.sche_log_pre)
+os.execute("mkdir -p "..global_conf.work_dir)
+os.execute("cp " .. global_conf.train_fn .. " " .. global_conf.train_fn_shuf)
+
+local vocab = nerv.LMVocab()
+global_conf["vocab"] = vocab
+global_conf.vocab:build_file(global_conf.train_fn, false)
+
+prepare_parameters(global_conf, true) --randomly generate parameters
+
+print("===INITIAL VALIDATION===") 
+local tnn, paramRepo = load_net(global_conf)
+local result = LMTrainer.lm_process_file(global_conf, global_conf.valid_fn, tnn, false) --false update!
+nerv.LMUtil.wait(3)
+ppl_rec = {} 
+lr_rec = {}
+ppl_rec[0] = {} 
+ppl_rec[0].valid = result:ppl_net("rnn")  
+ppl_last = ppl_rec[0].valid 
+ppl_rec[0].train = 0 
+ppl_rec[0].test = 0
+lr_rec[0] = 0 
+print() 
+local lr_half = false 
+for iter = 1, global_conf.max_iter, 1 do
+    tnn, paramRepo = load_net(global_conf) 
+    printf("===ITERATION %d LR %f===\n", iter, global_conf.lrate) 
+    global_conf.sche_log_pre = "[SCHEDULER ITER"..iter.." LR"..global_conf.lrate.."]:" 
+    result = LMTrainer.lm_process_file(global_conf, global_conf.train_fn_shuf, tnn, true) --true update!
+    ppl_rec[iter] = {}
+    ppl_rec[iter].train = result:ppl_net("rnn")
+    --shuffling training file
+    printf("%s shuffling training file\n", global_conf.sche_log_pre)
+    os.execute('cp ' .. global_conf.train_fn_shuf .. ' ' .. global_conf.train_fn_shuf_bak)
+    os.execute('cat ' .. global_conf.train_fn_shuf_bak .. ' | sort -R --random-source=/dev/zero > ' .. global_conf.train_fn_shuf)
+    printf("===PEEK ON TEST %d===\n", iter) 
+    result = LMTrainer.lm_process_file(global_conf, global_conf.test_fn, tnn, false) --false update!
+    ppl_rec[iter].test = result:ppl_net("rnn")  
+    printf("===VALIDATION %d===\n", iter) 
+    result = LMTrainer.lm_process_file(global_conf, global_conf.valid_fn, tnn, false) --false update!
+    ppl_rec[iter].valid = result:ppl_net("rnn") 
+    lr_rec[iter] = global_conf.lrate 
+    if (ppl_last / ppl_rec[iter].valid < 1.0003 or lr_half == true) then 
+        global_conf.lrate = (global_conf.lrate * 0.6)
+        lr_half = true 
+    end 
+    if (ppl_rec[iter].valid < ppl_last) then 
+        printf("%s saving net to file %s...\n", global_conf.sche_log_pre, global_conf.param_fn) 
+        paramRepo:export(global_conf.param_fn, nil) 
+        ppl_last = ppl_rec[iter].valid
+    else 
+        printf("%s PPL did not improve, rejected...\n", global_conf.sche_log_pre) 
+        if (lr_halg == true) then
+            printf("%s LR is already halfing, end training...\n", global_conf.sche_log_pre)
+        end
+    end 
+    printf("\n") 
+    nerv.LMUtil.wait(2) 
+end
+printf("===VALIDATION PPL record===\n") 
+for i = 0, #ppl_rec do printf("<ITER%d LR%.5f train:%.3f valid:%.3f test:%.3f> \n", i, lr_rec[i], ppl_rec[i].train, ppl_rec[i].valid, ppl_rec[i].test) end 
+printf("\n") 
+printf("===FINAL TEST===\n") 
+global_conf.sche_log_pre = "[SCHEDULER FINAL_TEST]:" 
+tnn, paramRepo = load_net(global_conf) 
+LMTrainer.lm_process_file(global_conf, global_conf.test_fn, tnn, false) --false update!
+