Sentiment Analyse

Sentiment Analyse Neural Network Model

Can classificate given text as bad or good review.

Based on Spacy - for text embedding. Spacy contain big multilanguage dataset, and can build 300 dimensions vector on text entityes. Model build on Tensorflow - easy for build network model fraemwork, but possible for production requires additional tuning.

Requirements

Can be run in docker enviroment, or if you on linux:

• Python - version 3.*
• Spacy - version 2.*
• Tensorflow - version 2.2 or bigger
• Make - optional, all commands can be run manually
• DVC - Git for machine learning

All Python libraries and models described in Dockerfile

Hardware

• NVidia videocard with DLSS version >= 10 - actually GPU optional, and learning can be run on CPU, but models and enviroment configurated to run on GPU, in base case tenserflow can fallback to CPU, so not need change anything for start development

Development

If you on Windows, build and run in-Docker development enviroment

# Build image
make docker-build
# Start docker container, map volume on current folder and attach current console
make docker-console

If you not in docker you need load Spacy model

# Will load meduim size model, good for developement, but for production better load lardger
make spacy-load-md

For rebuild model or test it after data or code changes, just run

make
# or
dvc repro

it will calculate all affected files and changed stages and start rebuild process

Training

For train model just run

make train

It will load dataset and start training

Testing

For test model just run

make test

Jupiter Notebook

In docker image insatlled Jupiter Notebook

For run notebook

make notebook

Five main steps for build Neural Network

1. Load dataset - split into train and test, and validation - which need for check training progress
2. Normalise data - need normalise text to vector with constant size, for put it into first layer of network
3. Build network model - stack layers for build model of network
4. Train - put train data with correct hyperparameters
5. Test - for insure correctness