pawelbeza / ium

Machine Learning Engineering Course

Task

Predict purchase intention basing on logs from e-commerce shop

Microservice

Build Dockerfile

docker build -t shopping-oracle -f ./microservice/Dockerfile ./microservice/

Run container

docker run -d -p 8080:80 --name shopping_oracle shopping-oracle

Quick note

Add volume -v path_to_local_file_db:/app/app/predictions.db if you want to persist your database on your host

Run logistic regression prediction

Examplary request

curl --request POST http://localhost:8080/predict/logistic_regression \
--header "Content-Type: application/json" \
--data @- << EOF
{
"user_id": 102,
"offered_discount" : 0,
"price" : 553,
"duration" : 0.0,
"weekend" : false,
"weekday" : 4,
"hour" : 4,
"click_rate" : 0,
"last_session_purchase" : true
}
EOF

Examplary output

{"model":"logistic_regression","prediction":true}

Run random forest prediction

Examplary request

curl --request POST http://localhost:8080/predict/random_forest \
--header "Content-Type: application/json" \
--data @- << 'EOF'
{
"user_id": 102,
"offered_discount" : 0,
"price" : 553,
"duration" : 0.0,
"weekend" : false,
"weekday" : 4,
"hour" : 4,
"click_rate" : 0,
"last_session_purchase" : true
}
EOF

Examplary output

{"model":"random_forest","prediction":true}

Run AB prediction

It will predict purchase intention using one of above models. Choice of model will depend on the value of user_id

Examplary request

curl --request POST http://localhost:8080/predict/testAB \
--header "Content-Type: application/json" \
--data @- << EOF
{
"user_id": 102,
"offered_discount" : 0,
"price" : 553,
"duration" : 0.0,
"weekend" : false,
"weekday" : 4,
"hour" : 4,
"click_rate" : 0,
"last_session_purchase" : true
}
EOF

Examplary output

{"model":"logistic_regression","prediction":true}

Predictions archive

Run cmd line sqlite3 program

docker exec -it shopping_oracle sqlite3 /app/app/predictions.db

Query

sqlite> SELECT * FROM prediction;
1|logistic_regression|102|0.0|553.0|1|1|0.0|1|4|4|0|0|0
2|random_forest|102|0.0|553.0|1|1|0.0|1|4|4|0|0|1
3|logistic_regression|102|0.0|553.0|1|1|0.0|1|4|4|0|0|0