📰 Medium · Machine Learning

How to ingest, chunk, mask PII, and embed millions of financial documents at scale using PySpark and PostgreSQL. Continue reading on Medium »

Preparing for a data analyst interview can feel very different from simply learning SQL. Continue reading on Medium »

In the world of data science, the spotlight almost always falls on the models. But the reality on the ground runs much deeper than that… Continue reading on Dat

I used to reach for pd.merge() for literally everything — stacking two DataFrames with identical columns, joining on an index, combining… Continue reading on Op

My Data Science Internship Journey at Synent Technologies Continue reading on Medium »

What Amazon, IRCTC, and HR analytics taught me about the real reach of data Continue reading on Medium »

The world generates an enormous amount of Data daily, whether it be text conveying meaning, numbers measuring quantities, images capturing… Continue reading on

Time-series data underpins many of the systems organizations rely on every day, supporting retail analytics, financial operations, machine… Continue reading on

One thing I learned while working on retail demand forecasting is that a forecast accuracy number does not always tell the full story. Continue reading on Mediu

The best data analytics course in Delhi in 2026 has to account for something most national career advice glosses over: Delhi NCR is not… Continue reading on Med

On rainy mornings, more people carry umbrellas. Traffic may also be worse. If we looked only at the numbers, umbrella use and traffic… Continue reading on Mediu

Recently, during a Data Science interview, I was asked to write the implementation of a few machine learning algorithms and basic data… Continue reading on Medi

Your models predict what happens next. They don’t tell you what to do about it. That gap is where the money is. Continue reading on Medium »

Whenever missing values come up, the first instinct of most naive data scientists is: “Hey, let’s just average out the values, or fill in… Continue reading on M

Master expression indexes to accelerate computed predicates, improve query performance, and optimize complex lookups Continue reading on Medium »

Relying on last quarter’s spreadsheets or post-campaign post-mortems to forecast next month’s market shifts is like steering a high-speed… Continue reading on M

Data Science, Artificial Intelligence and Machine Learning Training in Hyderabad Continue reading on Medium »

When I started learning Pandas, I understood individual functions like: Continue reading on Medium »

For years, analytics has been built around one fundamental question: Continue reading on Medium »

When health policy is directed by high-level dashboards, the most critical realities are often the first to disappear. A state-level… Continue reading on Medium

When a shelf goes empty, the sale that walks away never gets recorded. Continue reading on Medium »

Build essential data science skills with Python, SQL, statistics, data analysis, machine learning, real-world projects and communication. Continue reading on Me

Understanding Data Analytics, Business Intelligence, Predictive Analytics, Machine Learning, and the tools behind them. Continue reading on Medium »

This is a classic external-memory / streaming processing problem. The key is: never load the 5 GB CSV into RAM. Continue reading on Medium »