Navid Hejazi

Data Science Portfolio

Hi I'm Navid, and I'm a Data Scientist. My portfolio focuses on interesting projects I've recently undertaken, with a strong emphasis on business impact. Please visit my Github & LinkedIn pages (or download my Resume) by using the links below!

10 minute read

GenAI SQL Agents Python LangChain PostgreSQL

Building an AI SQL Agent On A Live Cloud-Based Database

In this project we build a practical SQL AI Agent for our grocery retail client, capable of taking natural-language questions and tu...

9 minute read

GenAI RAG LLMs Python LangChain

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation)

In this project we build a real, production-style AI assistant for our grocery retail client, capable of answering customer help-des...

less than 1 minute read

Tableau Data Viz

Earthquake Tracking Dashboard Using Tableau

This is a Tableau Dashboard that tracks global Earthquake activity across a 30-day period Open Earthquake Tracker Dashboard

15 minute read

Deep Learning CNN Data Science Computer Vision Python

Creating An Image Search Engine Using Deep Learning

In this project we build a Deep Learning based Image Search Engine that will help customers find similar products to ones they want!...

48 minute read

Deep Learning CNN Data Science Computer Vision Python

Fruit Classification Using A Convolutional Neural Network

In this project we build & optimise a Convolutional Neural Network to classify images of fruits, with the goal of helping a groc...

13 minute read

AB Testing Hypothesis Testing Chi-Square Python

Assessing Campaign Performance Using Chi-Square Test For Independence

In this project we apply Chi-Square Test For Independence (a Hypothesis Test) to assess the performance of two types of mailers that...

Older projects