Expert Contributors Articles

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.

Rahul H.

Updated on August 12, 2025

Neovim configuration is the process of customizing the Neovim text editor’s behavior, appearance and functionality by adding settings, plugins and keybindings in its configuration file, typically located at ~/.config/nvim/init.vim.

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.

Mike Hyzy

Updated on August 12, 2025

Threatcasting is a strategic method for anticipating and mitigating risks a decade in advance. Our expert offers an introduction.

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.

Joe Procopio

Updated on August 11, 2025

Let’s answer the big existential career question that’s hanging over all our heads — yes, but with limits.

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.