2016-10-31 2 views
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私はCaffeを使用して自分のデータを訓練しました。以下は、solver.prototxtファイルのパラメータです。訓練されたモデルの正確さと損失を評価する方法は良いですか?

test_iter: 100 
test_interval: 1000 
base_lr: 0.00001 
lr_policy: "step" 
gamma: 0.1 
stepsize: 20000 
display: 20 
max_iter: 13000 
momentum: 0.9 
weight_decay: 0.0005 
snapshot: 10000 
solver_mode: GPU 

テスト精度は約0.0185であり、テストロスは最初のテストで約2.85です。 iter 13000では、テスト精度は0.92で、テスト損失は0.52です。 精度が良いのか、それともデータの適合が上ののかをどのように評価するのですか。評価に使用できる方法はありますか?
以下は、すべてのテストでの精度と損失です。

I1031 11:36:47.063542 18188 solver.cpp:404]  Test net output #0: accuracy = 0.0184 
I1031 11:36:47.063623 18188 solver.cpp:404]  Test net output #1: loss = 2.85812 (* 1 = 2.85812 loss) 

I1031 11:38:49.832749 18188 solver.cpp:337] Iteration 1000, Testing net (#0) 
I1031 11:38:55.510437 18188 solver.cpp:404]  Test net output #0: accuracy = 0.764 
I1031 11:38:55.510509 18188 solver.cpp:404]  Test net output #1: loss = 1.1725 (* 1 = 1.1725 loss) 

I1031 11:40:59.547670 18188 solver.cpp:337] Iteration 2000, Testing net (#0) 
I1031 11:41:04.451655 18188 solver.cpp:404]  Test net output #0: accuracy = 0.6372 
I1031 11:41:04.451717 18188 solver.cpp:404]  Test net output #1: loss = 1.44847 (* 1 = 1.44847 loss) 

I1031 11:43:05.340741 18188 solver.cpp:337] Iteration 3000, Testing net (#0) 
I1031 11:43:09.262504 18188 solver.cpp:404]  Test net output #0: accuracy = 0.8844 
I1031 11:43:09.262568 18188 solver.cpp:404]  Test net output #1: loss = 0.576498 (* 1 = 0.576498 loss) 

I1031 11:45:10.821233 18188 solver.cpp:337] Iteration 4000, Testing net (#0) 
I1031 11:45:14.686005 18188 solver.cpp:404]  Test net output #0: accuracy = 0.5484 
I1031 11:45:14.686064 18188 solver.cpp:404]  Test net output #1: loss = 1.91799 (* 1 = 1.91799 loss) 

I1031 11:47:17.107151 18188 solver.cpp:337] Iteration 5000, Testing net (#0) 
I1031 11:47:21.160307 18188 solver.cpp:404]  Test net output #0: accuracy = 0.8908 
I1031 11:47:21.160372 18188 solver.cpp:404]  Test net output #1: loss = 0.54212 (* 1 = 0.54212 loss) 

I1031 11:49:23.325654 18188 solver.cpp:337] Iteration 6000, Testing net (#0) 
I1031 11:49:27.229637 18188 solver.cpp:404]  Test net output #0: accuracy = 0.7384 
I1031 11:49:27.229677 18188 solver.cpp:404]  Test net output #1: loss = 1.1355 (* 1 = 1.1355 loss) 

I1031 11:51:29.619175 18188 solver.cpp:337] Iteration 7000, Testing net (#0) 
I1031 11:51:33.568794 18188 solver.cpp:404]  Test net output #0: accuracy = 0.6264 
I1031 11:51:33.568837 18188 solver.cpp:404]  Test net output #1: loss = 1.10095 (* 1 = 1.10095 loss) 

I1031 11:53:36.075034 18188 solver.cpp:337] Iteration 8000, Testing net (#0) 
I1031 11:53:39.969431 18188 solver.cpp:404]  Test net output #0: accuracy = 0.9156 
I1031 11:53:39.969481 18188 solver.cpp:404]  Test net output #1: loss = 0.522906 (* 1 = 0.522906 loss) 

I1031 11:55:42.594107 18188 solver.cpp:337] Iteration 9000, Testing net (#0) 
I1031 11:55:46.473902 18188 solver.cpp:404]  Test net output #0: accuracy = 0.5228 
I1031 11:55:46.473961 18188 solver.cpp:404]  Test net output #1: loss = 1.63102 (* 1 = 1.63102 loss) 

I1031 11:57:55.669351 18188 solver.cpp:337] Iteration 10000, Testing net (#0) 
I1031 11:57:59.571413 18188 solver.cpp:404]  Test net output #0: accuracy = 0.8472 
I1031 11:57:59.571485 18188 solver.cpp:404]  Test net output #1: loss = 0.638568 (* 1 = 0.638568 loss 

I1031 12:00:01.984112 18188 solver.cpp:337] Iteration 11000, Testing net (#0) 
I1031 12:00:05.870985 18188 solver.cpp:404]  Test net output #0: accuracy = 0.7476 
I1031 12:00:05.871040 18188 solver.cpp:404]  Test net output #1: loss = 1.19568 (* 1 = 1.19568 loss) 

I1031 12:02:08.464495 18188 solver.cpp:337] Iteration 12000, Testing net (#0) 
I1031 12:02:12.397044 18188 solver.cpp:404]  Test net output #0: accuracy = 0.596 
I1031 12:02:12.397104 18188 solver.cpp:404]  Test net output #1: loss = 1.32557 (* 1 = 1.32557 loss) 

I1031 12:04:24.876971 18188 solver.cpp:337] Iteration 13000, Testing net (#0) 
I1031 12:04:28.693732 18188 solver.cpp:404]  Test net output #0: accuracy = 0.9284 
I1031 12:04:28.693771 18188 solver.cpp:404]  Test net output #1: loss = 0.521483 (* 1 = 0.521483 loss) 

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答えて

0

オーバーフィッティングがトレーニング精度の増加は、試験精度の向上にはつながらない状況を指すより多くの情報が必要な場合は私に知らせてください。ですから、それが起こるか、テストの精度に満足するまでトレーニングを続けることをお勧めします。

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