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PVS-Studio 7.00

Reading time 6 min
Views 3.9K
PVS-Studio C#\Java\C++Today is an important day — after 28 releases of the sixth version we present our PVS-Studio 7.00, in which the key innovation is the support of the Java language. However, during 2018 we have acquired many other important changes related to C++, C#, infrastructure and support of coding standards. Therefore, we bring to your attention a note that sums up the major changes that have happened in PVS-Studio for the last time.
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Total votes 52: ↑51 and ↓1 +50
Comments 3

Hello world! Or Habr in English, v1.0

Reading time 4 min
Views 30K
This is the first post in our blog in 2019. And this is important for all of us: we are finally launching the English version of Habr! Actually it was ready in the middle of December, but — you know — releasing a new feature right before Christmas is like deploying on Friday afternoon. So we decided to do it in the beginning of 2019.


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Total votes 180: ↑178 and ↓2 +176
Comments 247

Real-time edge detection using FPGA

Reading time 8 min
Views 15K

Introduction


Our project implements a real-time edge detection system based on capturing image frames from an OV7670 camera and streaming them to a VGA monitor after applying a grayscale filter and Sobel operator. Our design is built on a Cyclone IV FPGA board which enables us to optimize the performance using the powerful features of the low-level hardware and parallel computations which is important to meet the requirements of the real-time system.


We used ZEOWAA FPGA development board which is based on Cyclone IV (EP4CE6E22C8N). Also, we used Quartus Prime Lite Edition as a development environment and Verilog HDL as a programming language. In addition, we used the built-in VGA interface to drive the VGA monitor, and GPIO (General Pins for Input and Output) to connect the external hardware with our board.


ZEOWAA FPGA development board

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Total votes 55: ↑41 and ↓14 +27
Comments 46

Stack-based calculator on the Cyclone IV FPGA board

Reading time 12 min
Views 9.7K

Introduction


As first-year students of Innopolis University, we had an opportunity to make our own project in computer architecture. University suggested us several projects and we have chosen to make a stack-based calculator with reverse polish notation. One of the requirements for the project is to use FPGA board provided by the university.



As our board, we have chosen Cyclon IV. Therefore, we had to write code on hardware description language. In the course we have studied Verilog, so we have chosen it. Also, the university has additional modules for FPGA, such as numpad, thus we decided to use it in our project.

In this article, we want to share our knowledge about FPGA and Verilog, also provide you with a tutorial to repeat our project.
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Total votes 75: ↑58 and ↓17 +41
Comments 27

How linear algebra is applied in machine learning

Reading time 5 min
Views 14K

When you study an abstract subject like linear algebra, you may wonder: why do you need all these vectors and matrices? How are you going to apply all this inversions, transpositions, eigenvector and eigenvalues for practical purposes?


Well, if you study linear algebra with the purpose of doing machine learning, this is the answer for you.


In brief, you can use linear algebra for machine learning on 3 different levels:


  • application of a model to data;
  • training the model;
  • understanding how it works or why it does not work.

drawing
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Total votes 49: ↑37 and ↓12 +25
Comments 39

«Чемодан из крокодиловой кожи» или «мешок с аллигатором»: сравнение подключенных к Lokalise онлайн-переводчиков

Reading time 9 min
Views 3.7K
Пользователи Lokalise могут выбирать, локализовать им свой продукт с привлечением наёмных переводчиков площадки, с собственной командой или исключительно своими силами. Именно для упрощения процедуры локализации тех проектов, где профессиональные переводчики не нужны и достаточно собственных знаний языка, мы и предоставляем нашим пользователям возможность использовать встроенные в Lokalise популярные системы машинного перевода от Google, Yandex, Microsoft и SDL. О том, как переводят эти системы, мы сегодня и поговорим на конкретных примерах.



Google Machine Translate/Google Neural Translate


Около полугода назад компания Google заявила о подключении очередного набора языков к нейронной сети своего сервиса Google Translate, в том числе и русского. Событие это стало знаковым для всего русскоязычного интернет-пространства: ежедневно тысячи человек пользуются встроенным в Chrome переводчиком Google или идут на сайт Google Translate за переводом иностранного текста на родной язык.
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Total votes 25: ↑25 and ↓0 +25
Comments 2