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Natural language is increasingly becoming a viable way of interacting with smart software. Google search, Apple’s Siri, Microsoft’s Cortana, etc. are all capable of understanding queries in natural language.

In this article, Toptal Freelance Software Engineer Shanglun (Sean) Wang walks us through some useful concepts and techniques in natural language processing and shows how they can be used to build a simple NLP app.

Pricing strategy is one of the most important financial levers that companies have at their disposal to influence the financial success of their business. However, it is not an easy task. This article analyzes SaaS software pricing strategies and finds that several of the operational characteristics of the business model generate some very useful pricing advantages that can help drive financial performance.

Many problems have optimal algorithms developed for them, while many others require us to randomly guess until we get a good answer. Even an optimal solution becomes slow and complex at a certain scale, at which point we can turn to natural processes to see how they reach acceptable results.

In this article, Toptal Freelance Software Engineer Eugene Ossipov walks us through the basics of creating a Genetic Algorithm and gives us the knowledge to delve deeper into solving any problems using this approach.

Although CSS was meant to deal with styling, creating extraordinary layouts on the web has always been a unique challenge and almost always required the developer to resort to JavaScript. However, Flexbox is here to change that.

In this article, Toptal Freelance Software Engineer Diego Díaz walks us through the basics of Flexbox and some cool examples of how Flexbox can be used to build smart CSS-only layouts.

Java’s open source Spring framework is a popular tool for creating high performing applications using plain old Java objects, but as with any tool, inappropriate use can lead to trouble. In this article, we cover the most common pitfalls of using the Spring framework so new and experienced developers alike have a roadmap of what to avoid.

Open-source software is a catalyst for growth and change in the IT industry, and one can’t overestimate its importance to the sector. In recent years, there has been a surge in venture capital dollars pouring into the sector. In this article, we analyse whether recent valuations make sense, and whether the open-source model lends itself to the returns profile that venture capital investors look for.

Some designers make the mistake of designing products for their own vanity, focusing on the veneer instead of designing great UX. But designing for usability and delight brings greater benefits.

Nobody likes staring at an empty screen while content loads. A well-crafted animation helps people stay engaged while they wait. This tutorial will show how loading animations can be done with ease.

Java has some idiosyncrasies of its own and design choices that can make it rather verbose. While Java is a mature and performant programming language, developers frequently need to write boilerplate code that bring little or no real value other than complying with some set of constraints and conventions.

In this article, Toptal Freelance Software Engineer Miguel García López shows how Project Lombok can help dramatically reduce the amount of boilerplate code that needs to be written in a Java application.

Android provides many ways of creating and managing threads, and third-party libraries exist to make that even easier. However, with so many options, choosing the right approach can be quite confusing.

In this article, Toptal Freelance Software Engineer Eliran Goshen discusses some common scenarios in Android development that involve threading and how each of the scenarios can be dealt with.

Using Mockito is not just a matter of adding another dependency. It requires changing how you think about your unit tests while removing a lot of boilerplate. In this article, we cover multiple mock interfaces, listening invocations, matchers, and argument captors, and see firsthand how Mockito makes your tests cleaner and easier to understand.