3 [![Code Coverage](http://ec2-54-180-96-14.ap-northeast-2.compute.amazonaws.com/nntrainer/ci/badge/codecoverage.svg)](http://ec2-54-180-96-14.ap-northeast-2.compute.amazonaws.com/nntrainer/ci/gcov_html/index.html)
4 ![GitHub repo size](https://img.shields.io/github/repo-size/nnstreamer/nntrainer)
5 ![GitHub issues](https://img.shields.io/github/issues/nnstreamer/nntrainer)
6 ![GitHub pull requests](https://img.shields.io/github/issues-pr/nnstreamer/nntrainer)
8 NNtrainer is Software Framework for Training Neural Network Models on Devices.
12 NNtrainer is an Open Source Project. The aim of the NNtrainer is to develop Software Framework to train neural network model on embedded devices which has relatively limited resources. Rather than training the whole layers, NNtrainer trains only one or a few layers added after the feature extractor.
14 Even though it trains part of the neural network models, NNtrainer requires quite a lot of functionalities to train from common neural network frameworks. By implementing them, it is good enough to run several examples which can help to understand how it works. There are KNN, Neural Network, Logistic Regression and Reinforcement Learning with CartPole in Applications directory and some of them use Mobilenet V2 with tensorflow-lite as a feature extractor. All of them tested on Galaxy S8 with Android and PC (Ubuntu 16.04).
17 * [Jijoong Moon](https://github.com/jijoongmoon)
18 * [MyungJoo Ham](https://github.com/myungjoo)
19 * [Geunsik Lim](https://github.com/leemgs)
22 * [Sangjung Woo](https://github.com/again4you)
23 * [Wook Song](https://github.com/wooksong)
24 * [Jaeyun Jung](https://github.com/jaeyun-jung)
25 * [Hyoungjoo Ahn](https://github.com/helloahn)
26 * [Parichay Kapoor](https://github.com/kparichay)
27 * [Dongju Chae](https://github.com/dongju-chae)
28 * [Gichan Jang](https://github.com/gichan-jang)
29 * [Yongjoo Ahn](https://github.com/anyj0527)
35 This is the component which controls neural network layers. Read the configuration file ([Iniparser](https://github.com/ndevilla/iniparser) is used to parse the configuration file.) and constructs Layers including Input and Output Layer, according to configured information by the user.
36 The most important role of this component is to activate forward / backward propagation. It activates inferencing and training of each layer while handling the data properly among them. There are properties to describe network model as below:
38 - **_Type:_** Network Type - Regression, KNN, NeuralNetwork
39 - **_Layers:_** Name of Layers of Network Model
40 - **_Learning\_rate:_** Learning rate which is used for all Layers
41 - **_Decay\_rate:_** Rate for Exponentially Decayed Learning Rate
42 - **_Epoch:_** Max Number of Training Iteration.
43 - **_Optimizer:_** Optimizer for the Network Model - sgd, adam
44 - **_Activation:_** Activation Function - sigmoid , tanh
45 - **_Cost:_** Cost Function -
46 msr(mean square root error), categorical (for logistic regression), cross (cross entropy)
47 - **_Model:_** Name of Model. Weight Data is saved in the name of this.
48 - **_minibach:_** mini batch size
49 - **_beta1,beta2,epsilon:_** hyper parameters for the adam optimizer
54 This component defines Layers which consist of Neural Network Model. Every neural network model must have one Input & Output Layer and other layers such as Fully Connected or Convolution can be added between them. (For now, supports Input & Output Layer, Fully Connected Layer.)
56 - **_Type:_** InputLayer, OutputLayer, FullyConnectedLayer
57 - **_Id:_** Index of Layer
58 - **_Height:_** Height of Weight Data (Input Dimension)
59 - **_Width:_** Width of Weight Data ( Hidden Layer Dimension)
60 - **_Bias\_zero:_** Boolean for Enable/Disable Bias
65 Tensor is responsible for the calculation of Layer. It executes the addition, division, multiplication, dot production, averaging of Data and so on. In order to accelerate the calculation speed, CBLAS (C-Basic Linear Algebra: CPU) and CUBLAS (CUDA: Basic Linear Algebra) for PC (Especially NVIDIA GPU) for some of the operation. Later, these calculations will be optimized.
71 The following dependencies are needed to compile / build / run.
75 * blas library ( CBLAS ) (for CPU Acceleration, libopenblas is used for now)
76 * cuda, cudart, cublas (should match the version) (GPU Acceleration on PC)
77 * tensorflow-lite (>=1.4.0)
78 * libjsoncpp ( >=0.6.0) (openAI Environment on PC)
79 * libcurl3 (>= 7.47 ) (openAI Environment on PC)
81 * libgtest (for testing)
84 ### Give It a Go Build with Docker
86 You can use [docker image](https://hub.docker.com/r/lunapocket/nntrainer-build-env) to easily set up and try building.
91 $ docker pull lunapocket/nntrainer-build-env:ubuntu-18.04
92 $ docker run --rm -it lunapocket/nntrainer-build-env:ubuntu-18.04
99 $ git pull # If you want to build with latests sources.
102 You can try build from now on without concerning about Prerequisites.
106 Download the source file by cloning the github repository.
109 $ git clone https://github.com/nnstreamer/nntrainer
112 After completing download the sources, you can find the several directories and files as below.
133 f1a3a05 (HEAD -> master, origin/master, origin/HEAD) Add more badges
134 37032a1 Add Unit Test Cases for Neural Network Initialization
135 181a003 lower case for layer type.
136 1eb399b Update clang-format
137 87f1de7 Add Unit Test for Neural Network
138 cd5c36e Add Coverage Test badge for nntrainer
142 You can find the source code of the core library in nntrainer/src. In order to build them, use [meson](https://mesonbuild.com/)
145 The Meson build system
147 Source dir: /home/wook/Work/NNS/nntrainer
148 Build dir: /home/wook/Work/NNS/nntrainer/build
149 Build type: native build
150 Project name: nntrainer
151 Project version: 0.0.1
152 Native C compiler: cc (gcc 7.5.0 "cc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")
153 Native C++ compiler: c++ (gcc 7.5.0 "c++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")
154 Build machine cpu family: x86_64
155 Build machine cpu: x86_64
157 Build targets in project: 11
158 Found ninja-1.8.2 at /usr/bin/ninja
161 ninja: Entering directory `build'
162 [41/41] Linking target test/unittest/unittest_nntrainer_internal.
165 After completion of the build, the shared library, 'libnntrainer.so' and the static library, 'libnntrainer.a' will be placed in build/nntrainer.
167 $ ls build/nntrainer -1
168 d48ed23@@nntrainer@sha
169 d48ed23@@nntrainer@sta
174 In order to install them with related header files to your system, use the 'install' sub-command.
176 $ ninja -C build install
178 Then, you will find the libnntrainer.so and related .h files in /usr/local/lib and /usr/local/include directories.
180 By default, the command ```ninja -C build`` generates the five example application binaries (Classification, KNN, LogisticRegression, ReinforcementLearning, and Training) you could try in build/Applications. For 'Training' as an example case,
182 $ ls build/Applications/Training/jni/ -1
183 e189c96@@nntrainer_training@exe
187 In order to run such example binaries, Tensorflow-lite is a prerequisite. If you are trying to run on the Android, it will automatically download tensorflow (1.9.0) and compile as static library. Otherwise, you need to install it by yourself.
192 1. [Training](https://github.com/nnstreamer/nntrainer/blob/master/Applications/Training/README.md)
194 After build, run with following arguments
195 Make sure to put last '/' for the resources directory.
197 $./path/to/example ./path/to/settings.ini ./path/to/resource/directory/
200 To run the 'Training', for example, do as follows.
205 $ LD_LIBRARY_PATH=./build/nntrainer ./build/Applications/Training/jni/nntrainer_training ./Applications/Training/res/Training.ini ./Applications/Training/res/
206 ../../res/happy/happy1.bmp
207 ../../res/happy/happy2.bmp
208 ../../res/happy/happy3.bmp
209 ../../res/happy/happy4.bmp
210 ../../res/happy/happy5.bmp
211 ../../res/sad/sad1.bmp
212 ../../res/sad/sad2.bmp
218 ## Open Source License
220 The nntrainer is an open source project released under the terms of the Apache License version 2.0.