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!

Tags in Projects

AB Testing

Assessing Campaign Performance Using Chi-Square Test For Independence | 13 minute read

Agents

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Association Rule Learning

Understanding Alcohol Product Relationships Using Association Rule Learning | 15 minute read

BERT

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

CNN

Creating An Image Search Engine Using Deep Learning | 15 minute read

Fruit Classification Using A Convolutional Neural Network | 48 minute read

Causal Impact Analysis

Quantifying Sales Uplift With Causal Impact Analysis | 15 minute read

Chi-Square

Assessing Campaign Performance Using Chi-Square Test For Independence | 13 minute read

Classification

Enhancing Targeting Accuracy Using ML | 54 minute read

Clustering

The "You Are What You Eat" Customer Segmentation | 14 minute read

Computer Vision

Creating An Image Search Engine Using Deep Learning | 15 minute read

Fruit Classification Using A Convolutional Neural Network | 48 minute read

Customer Loyalty

Predicting Customer Loyalty Using ML | 36 minute read

Customer Segmentation

The "You Are What You Eat" Customer Segmentation | 14 minute read

Customer Targeting

Enhancing Targeting Accuracy Using ML | 54 minute read

Data Science

Creating An Image Search Engine Using Deep Learning | 15 minute read

Fruit Classification Using A Convolutional Neural Network | 48 minute read

Data Viz

Earthquake Tracking Dashboard Using Tableau | less than 1 minute read

Deep Learning

Creating An Image Search Engine Using Deep Learning | 15 minute read

Fruit Classification Using A Convolutional Neural Network | 48 minute read

GenAI

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation) | 9 minute read

Hypothesis Testing

Assessing Campaign Performance Using Chi-Square Test For Independence | 13 minute read

LLMs

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation) | 9 minute read

LangChain

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation) | 9 minute read

Machine Learning

Compressing Feature Space For Classification Using PCA | 12 minute read

The "You Are What You Eat" Customer Segmentation | 14 minute read

Enhancing Targeting Accuracy Using ML | 54 minute read

Predicting Customer Loyalty Using ML | 36 minute read

NLP

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

OpenAI

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read

PCA

Compressing Feature Space For Classification Using PCA | 12 minute read

Pinecone

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

PostgreSQL

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Python

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation) | 9 minute read

Creating An Image Search Engine Using Deep Learning | 15 minute read

Fruit Classification Using A Convolutional Neural Network | 48 minute read

Assessing Campaign Performance Using Chi-Square Test For Independence | 13 minute read

Quantifying Sales Uplift With Causal Impact Analysis | 15 minute read

Understanding Alcohol Product Relationships Using Association Rule Learning | 15 minute read

Compressing Feature Space For Classification Using PCA | 12 minute read

The "You Are What You Eat" Customer Segmentation | 14 minute read

Enhancing Targeting Accuracy Using ML | 54 minute read

Predicting Customer Loyalty Using ML | 36 minute read

RAG

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read

Building an AI Help-Desk Assistant Using RAG (Retrieval Augmented Generation) | 9 minute read

Regression

Predicting Customer Loyalty Using ML | 36 minute read

SQL

Building an AI SQL Agent On A Live Cloud-Based Database | 10 minute read

Semantic Search

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

Streamlit

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

Tableau

Earthquake Tracking Dashboard Using Tableau | less than 1 minute read

Vector Databases

Building a Semantic Course Search Engine Using Weighted BERT Embeddings | 3 minute read

n8n

iOS 18 Documentation Chatbot Using RAG (n8n + Pinecone + OpenAI) | 2 minute read