Data Science Articles

Artturi Jalli

Updated on August 18, 2025

Cassandra is an open-source, distributed NoSQL database that can manage large volumes of data across multiple servers with high scalability.

Terence Shin

Updated on August 12, 2025

Advanced SQL is the use of structured query language (SQL) techniques for complex querying, data manipulation and management, using features like CTEs, recursive queries, window functions and advanced joins. Here's 10 advanced SQL concepts to know.

Trist'n Joseph

Updated on August 12, 2025

Bootstrapping is a statistical resampling method that repeatedly samples with replacement from an existing data set to estimate the sampling distribution of a statistic.

James Le

Updated on August 12, 2025

A machine learning algorithm is a set of instructions that enables a system to learn patterns from data and make predictions or decisions without being explicitly programmed for each task. Here are the machine learning algorithms beginners should know.

Richmond Alake

Updated on August 12, 2025

Bubble sort time complexity describes how the bubble sort algorithm’s runtime scales with input size, being O(n²) in average and worst cases and O(n) in the best case when optimized.

Srishti Saha

Updated on August 11, 2025

Covariance indicates the direction of the linear relationship between two variables and how they vary, while correlation measures both the strength and direction of the linear relationship between two variables.

Sparsh Gupta

Updated on August 11, 2025

A loss function in machine learning is a mathematical formula that measures the difference between a model’s predicted output and the actual target value, guiding optimization during training. Here are common loss functions to know and when to use them.

Parag Radke

Updated on August 11, 2025

Forward chaining and backward chaining are two approaches to designing an expert system for AI that help you solve complex problems. Learn how they work.

Matthew Urwin

Updated on August 07, 2025

Differential privacy is a mathematical definition of privacy designed to keep individual data anonymous within data sets. Here’s how this standard can be used to protect personal data, even as artificial intelligence complicates the security sector.

Jeff Rumage

Updated on August 07, 2025

Palantir’s data analysis software is known as a military intelligence tool. But as the company branches out in the government and corporate America, we take a closer look at its technology.