DeepPavlov (Sentiment analysis)

In this article I'll show you how to setup sentiment analysis using https://deeppavlov.ai/ and my prepared docker image

Installing DeepPavlov

git clone https://github.com/LiveHelperChat/sentiment && cd sentiment
docker-compose -f docker-compose.yml pull
wget https://livehelperchat.com/var/deep.tgz
tar zxfv deep.tgz
rm -f deep.tgz

Run one time

docker-compose -f docker-compose.yml up

Run as a service

docker-compose -f docker-compose.yml up -d

Testing

curl -X POST "http://localhost:5000/model" -H "accept: application/json" -H "Content-Type: application/json" -d "{\"x\":[\"all went no so good, but could have been better\"]}"

If you did everything right you should see output like this

[["neutral"]]

Configuring Live Helper Chat

Our requirements are

  • We should send set sentiment on chat close event
  • Only for chats where operator participated
  • Set relevant chat subject

For that we will be using webhooks.

Configuring Rest API call

In this case we are sending to bot only messages (operator and visitor) which happened after chat become pending. For that there is placeholder {{msg_all_since_transfer_content}}. You can also use other if you want.

In output combination we expect 200 header and very first element should contain our evaluation.

Configuring bot

In the bot for simplicity we will have

  • chat.close This trigger will be the one who get's executed on chat close event.
  • Set sentiment This trigger will be executed if Rest API returns sentiment.
  • very_negative, negative, neutral, positive, very_positive just trigger which set's a subject.

chat.close trigger screenshot

Set sentiment trigger sceenshot

In this trigger at the moment only two evaluations are defined very_positive,neutral same way you can add the missing ones.

very_positive,neutral trigger screenshot

First text message is just for debug purposes. Second one response we just set a subject with ID 1.

Configuring webhook

In webhook we define what event we want to listen. Also we want to listen to chats which had an operator.

That's it :)

Last updated on by Remigijus Kiminas