Blog Section
Introduction This article is intended for those who are familiar with the concept of ontology at least at a basic level. If you are not familiar with ontologies, you may not understand the purpose of ontologies and this article in particular. I recommend familiarizing yourself with this phenomenon before starting to read this article (an article from Wikipedia might suffice). […]
The registrar APNIC, responsible for the distribution of IP addresses in the Asia-Pacific region, has published the results of an analysis of traffic distribution on one of the root DNS servers a.root-servers.net. 45.80% of the queries to the root server were related to checks performed by browsers based on the Chromium engine. Thus, almost half of the resources of root DNS servers are spent on performing diagnostic checks for Chromium rather than processing requests from DNS servers during […]
I share from personal experience where and when it was useful. A general overview and bullet points to clarify what can be explored further — but this is based solely on my subjective personal experience, yours may be quite different. Why is it important to know and be able to work with query languages? In essence, there are several key aspects in Data Science [...]
Frenchman Fabrice Grinda has always loved taking risks — he has successfully invested in hundreds of companies: Alibaba, Airbnb, BlaBlaCar, Uber, and even the Russian equivalent of Booking — the service Oktogo. He has a special intuition for trends and the potential future. Monsieur Grinda not only invested in others' businesses but also created his own. For example, the online classifieds platform OLX, which is used by [...]
Cloud computing is increasingly infiltrating our lives, and there is probably no one who hasn't used some cloud services at least once. However, what exactly is the cloud and how does it work? Very few know even at an introductory level. 5G is becoming a reality, and telecom infrastructure is starting to transition [...]
A new version of the XMPP client Kaidan 0.6.0 is available. The program is written in C++ using Qt, QXmpp, and the Kirigami framework. The code is distributed under the GPLv3 license. Builds have been prepared for Linux (AppImage and flatpak) and Android. The release of builds for macOS and Windows is delayed. A key improvement in the new version is the implementation of an offline message queue—messages are now stored […] when there is no network connection.
Zextras has started the formation and publication of ready-to-use builds of the Zimbra 9 collaboration and email package, marketed as an alternative to MS Exchange. Builds are available for Ubuntu and RHEL (260 MB). Previously, Synacor, which oversees the development of Zimbra, announced it would cease publishing binary builds of the Zimbra Open Source Edition and intends to develop Zimbra 9 as a proprietary product without […].
Here’s what’s new in Kotlin 1.4.0: A new, more powerful type inference algorithm is enabled by default. It automatically infers types in more cases, supports smart-cast even in complex scenarios, better handles delegated properties, and much more. New IR backends for JVM and JS are available in alpha mode. Once stabilized, they will be used by default. In Kotlin 1.4 […].
Just over a year has passed since I tested the brand new Intel Core i9-9900K. But time marches on, everything changes, and now Intel has released a fresh line of 10th generation processors, the Intel Core i9-10900K. What surprises do these processors hold, and is everything really changing? Let's talk about this right now. Comet Lake-S is the code name for the 10th generation [...]
With the emergence of Intel's seventh-generation Core processors, it became clear to many that the 'Tick-Tock' strategy that Intel had been following was flawed. The promise to reduce the technological process from 14 to 10 nm remained just a promise, leading to a long 'Tock' era of Skylake, during which Kaby Lake (the seventh generation) occurred, along with the sudden Coffee Lake (the eighth) with minimal changes to the process technology [...]
The development of the topic Study on implementing Row Level Security in PostgreSQL and an expanded response to the comment. The strategy used involves the concept of 'Business Logic in the Database', which was described in more detail here — Study on implementing business logic at the level of stored functions in PostgreSQL. The theoretical part is well described in the Postgres Pro documentation — Row Protection Policies. Below is a practical [...]
As an addition to the study on implementing business logic at the level of PostgreSQL stored functions, and primarily as a detailed response to the comment. The theoretical part is well described in the Postgres Pro documentation — Row-Level Security Policies. Below is a practical implementation of a small specific business task — hiding deleted data. The study dedicated to the implementation of the Role-Based Model using RLS is presented […]