How we listened to the needs of our customers and implemented the feature with the maximum capabilities of the iOS and Android platforms. Then we looked into analytics, added onboarding, and usage grew. At the end of the article there are some cool conclusions and insights. Developing a video conferencing mobile app is fun!
So far we've discussed query execution stages, statistics, and the two basic data access methods: Sequential scan and Index scan.
The next item on the list is join methods. This article will remind you what logical join types are out there, and then discuss one of three physical join methods, the Nested loop join. Additionally, we will check out the row memoization feature introduced in PostgreSQL 14.
The common combination of JUnit5, Selenide and Allure has proven to be stable and reliable for autotesting. The remaining issue, however, lies in test length increase up until the rise of overall test numbers. The resulting video files turn out to be over an hour. Alexander Kochergin, Lead engineer at Innotech, has found a way to simplify the process.
In this post, I describe how to use MemoryCache and track lifetime of entities in .NET applications.
The pooling is the good practice to reuse created resources instead of a new allocation. I found Microsoft.IO.RecyclableMemoryStream package for using memory streams pooling during logging HTTP-requests in my server.
Foreword
This tutorial is intended primarily for those new to Frontity (React framework for WordPress) development.
Primary goal
Collect in one place all the necessary information for setting up authorization for WordPress private endpoints using the example of getting a menu collection (wp-json/wp/v2/menus).
The InvokeAI team is excited to share our latest feature release, with a set of new features, UI enhancements, and CLI capabilities.
In the world of academic knowledge evaluation, objective calculation of large data presents a serious problem. Can a student studying in an Advanced Maths class and getting B-marks be evaluated equally with another student, getting B-marks in a General Maths class? Can we create a system that would take into account the level of difficulty those students face?
This article will describe a system of independent evaluation we have been using for school olympics in five subjects (Mathematics, English Language, Russian Language, Tatar Language, Social Science) for students grades 1 to 11. In each academic year we organise six qualification tournaments, with about 15,000 students from different regions of Russia. Then we select the top ten participants in each subject and each grade for their future participation in the final (seventh) tournament, where only the best of the best are chosen. It means that 550 participants compete in the final tournament, which is about 5.5% of all participants in the academic year.
It is obvious that those multiple tournaments cannot be absolutely homogenous, and inevitably the levels of difficulty for each set of tasks vary. Therefore, it is critical for us to take into consideration those variations of difficulty and calculate the results in the most objective manner.
August was a special month in PostgreSQL release cycle as the first CommitFest for the 16th PostgreSQL release was held.
Let's compile the server and check out the cool new stuff!
In the previous articles, we have covered query execution stages, statistics, sequential and index scan, and two of the three join methods: nested loop and hash join.
This last article of the series will cover the merge algorithm and sorting. I will also demonstrate how the three join methods compare against each other.
In this article, I will break down all the secrets of quantum computers piece by piece: what superposition (useless) and entanglement (interesting effect) are, whether they can replace classical computers (no) and whether they can crack RSA (no). At the same time, I will not mention the wave function and annoying Bob and Alice that you might have seen in other articles about quantum machines.
The first and most important thing to know is that quantum computers have nothing to do with conventional ones. Quantum computers are analog in nature, they have no binary operations. You have probably already heard about Qubits that they have a state of 0, 1 and 0-1 at the same time and with the help of this feature calculations are very fast: this is a delusion. A qubit is a magnet (usually an atom or an electron) suspended in space, and it can rotate on all three axes. In fact, the rotations of a magnet in space are the operations of a quantum computer. Why can it speed up calculations? It was very difficult to find the answer, but the most patient readers will find it at the end of the article.
With the end of the 2022' third quarter, we invite you to take a tour into DDoS attacks mitigation and BGP incidents statistics recorded from July to September.
One of the major challenges facing companies that transitioned online is how to deliver quality and personal customer service to their clients without face-to-face interaction. It’s true that technology can cause exponential growth to companies. However, business owners and leaders must also guard this important aspect of running a business. Fortunately, there are now a lot of CRM systems or customer relationship management systems available online.
What are the features and objectives of CRM tools? Its most basic definition is any technology in the form of a system or an app that aims to manage all your relationships and interactions with clients and potential customers.
Today, over 87% of businesses use a cloud-based CRM. That’s because it enhances business relationships and operations by giving organizations a more streamlined way to interact with their leads and customers. A CRM system enables companies to engage their customers, simplify processes, and increase income generation.
Toloka is a crowdsourcing platform and microtasking project launched by Yandex to quickly markup large amounts of data. But how can such a simple concept play a crucial role in improving the work of neural networks?
At first glance making REST and Apache Kafka compatible seems quite a challenge. However Innotech team nailed the task. Kirill Voronkin, Lead Developer at Innotech, shared the details on transforming unsynchronized queries into synchronized.
I bet you all had situations when a designer made a cool-looking UI and you just thought “cool, but how to implement this”. The same happened to me when a saw this progress bar in Figma.
Good thing is that in Flutter it’s pretty easy to create custom views and they will look awesome on every platform, but sometimes you just need to remember all these things that you have learned in geometric, and math classes. Yeah, we don’t always change the button’s color as someone thinks :)
LC ladder component values can have different values for the same transfer function. Published tables have only one set. Why?
Hi everyone, a few months ago I got a Brother AX-25, and since then, I've been working on turning it into a computer. It uses an Arduino to scan the custom mechanical keyboard and control the typewriter, and a Raspberry Pi is connected to the Arduino over serial so I can log into it in headless mode.
This is the complete crash course on the Elliptic Curves Cryptography used in Bitcoin and other blockchains. With code samples and a live demo from scratch.
