๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
728x90

๐Ÿ’ก EE's DEV/๋จธ์‹ ๋Ÿฌ๋‹2

[Tensorflow] MLP(Multi Layer Perceptron) classification with MNIST data Tensorflow MLP classificationClassification ๊ฐœ๋… ์ •๋ฆฌ1 Softmax Regression (๋ชจ๋ธ)์–ด๋–ค input x๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ๊ทธ๊ฒƒ์ด class i๋ผ๊ณ  ํ™•์‹ ํ•˜๋Š” ์ •๋„(evidence) evidenceiโ€‹=jโˆ‘โ€‹Wi,jโ€‹xjโ€‹+biโ€‹ ์œ„์˜ evidence๋ฅผ softmax function์„ ํ†ตํ•ด ํ”„๋กœ๊ทธ๋žจ์ด ๋ ˆ์ด๋ธ”(Label)์„ y๋ผ๊ณ  ์˜ˆ์ธกํ•  ํ™•๋ฅ ๋กœ ๋ฐ”๊พผ๋‹ค.y=softmax(evidence) ์œ„ ์‹์—์„œ softmax ํ•จ์ˆ˜ ์ผ์ข…์˜ link ํ•จ์ˆ˜๋กœ์จ ์„ ํ˜•ํ•จ์ˆ˜์˜ ๊ฒฐ๊ณผ(evidence)๋ฅผ ์šฐ๋ฆฌ๊ฐ€ ์›ํ•˜๋Š” ํ˜•ํƒœ๋กœ ๋ฐ”๊พธ์–ด์ค€๋‹ค. softmax(x)=normalize(exp(x))softmax(x)_i = \frac{exp(x_i)}{\sum_{j}exp(x_j)}softmax(x)i.. 2018. 9. 24.
[๋จธ์‹ ๋Ÿฌ๋‹] Ubuntu16.04์—์„œ CUDA, cuDNN, Anaconda, Tensorflow, Pytorch ์„ค์น˜ํ•˜๊ธฐ 1. Nvidia ๊ทธ๋ž˜ํ”ฝ ๋“œ๋ผ์ด๋ฒ„ ์„ค์น˜ ํ•ด๋‹นํ•˜๋Š” ๊ทธ๋ž˜ํ”ฝ์นด๋“œ์™€ ํ˜ธํ™˜์ด ๋˜๋Š” 367.4x๋ฒ„์ „ ์ด์ƒ์˜ ์ตœ์‹  ๋ฒ„์ „์˜ ๋“œ๋ผ์ด๋ฒ„๋ฅผ ์„ค์น˜ํ•œ๋‹ค. $ sudo add-apt-repository ppa:graphics-drivers/ppa$ sudo apt-get update$ sudo apt-get install nvidia-375 ์„ค์น˜๊ฐ€ ๋๋‚œ ํ›„ ์žฌ๋ถ€ํŒ…ํ•œ๋‹ค. $ sudo reboot ๋“œ๋ผ์ด๋ฒ„ ๋ฒ„์ „๊ณผ ๊ทธ๋ž˜ํ”ฝ์นด๋“œ์˜ ์ •๋ณด๊ฐ€ ๋‚˜์˜ค๋Š”์ง€ ํ™•์ธํ•œ๋‹ค. $ nvidia-smi Wed Dec 20 15:40:51 2017 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 384.98 Driver Version: 384.9.. 2017. 12. 20.
728x90