Analyst and Developer in Kolkata, West Bengal, India

The problem statement involved predicting which classes were about to change from using the publisher's books to online material. After implementing feature engineering using a genetic algorithm and clustering, the best prediction results were achieved using a random forest model.

This is an attempt to understand the relationship between the financials of a company and its performance in the stock market. There is also an attempt to identify cheap buying opportunities based on various risk profiles. The dataset was huge, so it was stored in a distributed file system, and we used PySpark for the transformations.

This is a natural language processing project where we used various methods like parts of speech tagging, name-entity recognition, readability, sentiment score, topic modeling, and more to train a regression model for good and bad reviews scraped from websites concerning different topics. The recommendations were made based on how various features impacted the score and what measures could be taken to improve it.

I developed the database using ETL processes on the data from online resources, normalized the data to create a star schema using MySQL workbench, and used this output to visualize the data using Tableau.

I have created a database by scraping the web for pictures and trained a machine learning model with several characteristics of images available in social media and the number of likes to suggest which picture works better. I also deployed the model using the Flask API.

I created data pipelines for merging data from various sources like several data APIs and the PostgreSQL database. I also implemented an exploratory data analysis and modeling of the new data to derive new insights along with running Jupyter Lab on an AWS EC2 instance.

The project involved retrieving financial data of the company from a database and building a random forest model. The project had the scope of having a variable interest rate based on the probability of default for different sectors. Finally, the model was deployed using the Flask API.

The project involved ingesting live tweet data using the API into Kafka topics. Then we used Spark streaming as a subscriber and did sentiment analysis and feature engineering. This data was then aggregated and passed onto a shiny dashboard. The data then was stored in a MongoDB database.

This project is based on research where volatile organic compounds (VOCs) released by humans have predictive power with cancer. Here we are using a
VOC database with labeled cancer data. The results are deployed using a Flask API which predicts the kind of cancer based on the VOC content.

I developed the sales forecasting model for an FMCG client. We trained an ARIMA model and decomposed the data into its component sine waves using FFT. This data was then fed to a machine learning model along with some external factors to predict the sales.

Built an ensemble model that combined outputs from deep learning time series models like N-HiTS and N-BEATS with a traditional linear regression that outperformed all the existing forecasts. Also built a Twitter scraper to get tweet data for the products and their associated sentiments.

Trained BERT-based solutions to fit the given use case.
Built APIs to allow its interaction with external modules.
Dockerized the whole application.
Connected it with AWS and GCP solutions like Lambda, container registry, etc., to achieve autoscaling of the API.