ignatovfedor / deeppavlov

An open source library for deep learning end-to-end dialog systems and chatbots.

DeepPavlov is an open-source conversational AI library built on TensorFlow, Keras and PyTorch.

DeepPavlov is designed for

• development of production ready chat-bots and complex conversational systems,
• research in the area of NLP and, particularly, of dialog systems.

Quick Links

• Demo demo.deeppavlov.ai
• Documentation docs.deeppavlov.ai
  • Model List docs:features/
  • Contribution Guide docs:contribution_guide/
• Issues github/issues/
• Forum forum.deeppavlov.ai
• Blogs medium.com/deeppavlov
• Tutorials examples/ and extended colab tutorials
• Docker Hub hub.docker.com/u/deeppavlov/
  • Docker Images Documentation docs:docker-images/

Please leave us your feedback on how we can improve the DeepPavlov framework.

Models

Named Entity Recognition

Intent/Sentence Classification | Question Answering over Text (SQuAD)

Knowledge Base Question Answering

Sentence Similarity/Ranking | TF-IDF Ranking

Morphological tagging | Syntactic parsing

Automatic Spelling Correction

Entity Linking | Multitask BERT

Skills

Goal(Task)-oriented Bot | Open Domain Questions Answering

Frequently Asked Questions Answering

Embeddings

BERT embeddings for the Russian, Polish, Bulgarian, Czech, and informal English

ELMo embeddings for the Russian language

FastText embeddings for the Russian language

Auto ML

Tuning Models

Integrations

REST API | Socket API

Amazon AWS

Installation

0. We support Linux platform, Python 3.6, 3.7, 3.8 and 3.9

   • Python 3.5 is not supported!
   • installation for Windows requires Git(for example, git) and Visual Studio 2015/2017 with C++ build tools installed!

1. Create and activate a virtual environment:

   • Linux

   python -m venv env
   source ./env/bin/activate
   

   • Windows

   python -m venv env
   .\env\Scripts\activate.bat
   

2. Install the package inside the environment:

   pip install deeppavlov
   

QuickStart

There is a bunch of great pre-trained NLP models in DeepPavlov. Each model is determined by its config file.

List of models is available on the doc page in the deeppavlov.configs (Python):

from deeppavlov import configs

When you're decided on the model (+ config file), there are two ways to train, evaluate and infer it:

• via Command line interface (CLI) and
• via Python.

GPU requirements

To run supported DeepPavlov models on GPU you should have CUDA 10.0 installed on your host machine and TensorFlow with GPU support (tensorflow-gpu) installed in your python environment. Current supported TensorFlow version is 1.15.2. Run

pip install tensorflow-gpu==1.15.2

before installing model's package requirements to install supported tensorflow-gpu version.

Before making choice of an interface, install model's package requirements (CLI):

python -m deeppavlov install <config_path>

• where <config_path> is path to the chosen model's config file (e.g. deeppavlov/configs/classifiers/insults_kaggle_bert.json) or just name without .json extension (e.g. insults_kaggle_bert)

Command line interface (CLI)

To get predictions from a model interactively through CLI, run

python -m deeppavlov interact <config_path> [-d]

• -d downloads required data -- pretrained model files and embeddings (optional).

You can train it in the same simple way:

python -m deeppavlov train <config_path> [-d]

Dataset will be downloaded regardless of whether there was -d flag or not.

To train on your own data you need to modify dataset reader path in the train config doc. The data format is specified in the corresponding model doc page.

There are even more actions you can perform with configs:

python -m deeppavlov <action> <config_path> [-d]

• <action> can be
  • download to download model's data (same as -d),
  • train to train the model on the data specified in the config file,
  • evaluate to calculate metrics on the same dataset,
  • interact to interact via CLI,
  • riseapi to run a REST API server (see doc),
  • predict to get prediction for samples from stdin or from <file_path> if -f <file_path> is specified.
• <config_path> specifies path (or name) of model's config file
• -d downloads required data

Python

To get predictions from a model interactively through Python, run

from deeppavlov import build_model

model = build_model(<config_path>, download=True)

# get predictions for 'input_text1', 'input_text2'
model(['input_text1', 'input_text2'])

• where download=True downloads required data from web -- pretrained model files and embeddings (optional),
• <config_path> is path to the chosen model's config file (e.g. "deeppavlov/configs/ner/ner_ontonotes_bert_mult.json") or deeppavlov.configs attribute (e.g. deeppavlov.configs.ner.ner_ontonotes_bert_mult without quotation marks).

You can train it in the same simple way:

from deeppavlov import train_model 

model = train_model(<config_path>, download=True)

• download=True downloads pretrained model, therefore the pretrained model will be, first, loaded and then train (optional).

Dataset will be downloaded regardless of whether there was -d flag or not.

To train on your own data you need to modify dataset reader path in the train config doc. The data format is specified in the corresponding model doc page.

You can also calculate metrics on the dataset specified in your config file:

from deeppavlov import evaluate_model 

model = evaluate_model(<config_path>, download=True)

License

DeepPavlov is Apache 2.0 - licensed.