Algorithms

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How C++ Competitive Programming Can Help Hiring Managers and Developers Alike

Programmers gain valuable real-world skills from algorithm competitions that can boost their job prospects—and contest ratings make it easier for hiring managers to find top talent. Explore competitive C++ with a programmer whose scores got them recruited by Google.

9 minute readContinue Reading
Anitet Wheeler-Rose

Anitet Wheeler-Rose

Identifying the Unknown With Clustering Metrics

Clustering in machine learning has a variety of applications, but how do you know which algorithm is best suited to your data? Here’s how to amplify your data insights with comparison metrics, including the F-measure.

12 minute readContinue Reading
Surbhi Gupta

Surbhi Gupta

Machines and Trust: How to Mitigate AI Bias

Unwanted AI bias is already a widespread problem. Machine learning models can replicate or exacerbate existing biases, often in ways that are not detected until release. So what can be done about it?

13 minute readContinue Reading
Michael McKenna

Michael McKenna

Do the Math: Scaling Microservices Applications With Orchestrators

Automatically scaling container deployments in a microservices-based app architecture is downright luxurious…once it’s set up. But what’s the best way to tune an app’s orchestration parameters?

9 minute readContinue Reading
Antoine Hamon

Antoine Hamon

Exploring Supervised Machine Learning Algorithms

While machine learning sounds highly technical, an introduction to the statistical methods involved quickly brings it within reach. In this article, Toptal Freelance Software Engineer Vladyslav Millier explores basic supervised machine learning algorithms and scikit-learn, using them to predict survival rates for Titanic passengers.

24 minute readContinue Reading
Vlad Miller

Vlad Miller

A Guide to Consistent Hashing

Consistent Hashing is a distributed hashing scheme that operates independently of the number of servers or objects in a distributed hash table. It powers many high-traffic dynamic websites and web applications.

In this tutorial, Toptal Freelance Software Engineer Juan Pablo Carzolio will walk us through what it is and how hashing, distributed hashing and consistent hashing work.

25+ minute readContinue Reading
Juan Pablo Carzolio

Juan Pablo Carzolio

Optimized Successive Mean Quantization Transform

Image processing algorithms are often very resource intensive due to fact that they process pixels on an image one at a time and often requires multiple passes. Successive Mean Quantization Transform (SMQT) is one such resource intensive algorithm that can process images taken in low-light conditions and reveal details from dark regions of the image.

In this article, Toptal engineer Daniel Angel Munoz Trejo gives us some insight into how the SMQT algorithm works and walks us through a clever optimization technique to make the algorithm a viable option for handheld devices.

15 minute readContinue Reading
Daniel Munoz

Daniel Munoz

Predicting Likes: Inside A Simple Recommendation Engine’s Algorithms

The Internet is becoming “smarter” every day. The video-sharing website that you frequently visit seems to know exactly what you will like, even before you have seen it. The online shopping cart holding your items almost magically figures out the one thing that you may have missed or intended to add before checking out. It’s as if these web services are reading your mind—or are they?

Turns out, predicting a user’s likes involves more math than magic. In this article we explore one of the many ways of building a recommendation engine that is both simple to implement and understand.

15 minute readContinue Reading
Mahmud Ridwan

Mahmud Ridwan

How does Shazam work? Music Recognition Algorithms, Fingerprinting, and Processing

You hear a familiar song in the club or the restaurant. You listened to this song a thousand times long ago, and the sentimentality of the song really touches your heart. You desperately want to heart it tomorrow, but you can’t remember its name! Fortunately, in our amazing futuristic world, you have a phone with music recognition software installed, and you are saved.

But how does this really work? Shazam’s algorithm was revealed to world in 2003. In this article we’ll go over the fundamentals of that algorithm.

14 minute readContinue Reading
Jovan Jovanovic

Jovan Jovanovic

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