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Comparison of AWS, Google Cloud and Azure

07.04.2024

Here is the services comparison between 3 major could providers: Amazon AWS, Google Cloud and Azure. The comparison in the picture will be useful in cases when you work with several cloud providers or you migrate from one provider to another.…

aws cloud providers gcp

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Computer vision tracking time customer spent in a cafe and counting cups is a fake and that is why

03.09.2023

Let’s talk about fakes!I’ve been seeing this video on Linkedin for a week or more. Three days ago, a crowd of people sent it to me with the words “see how they can.” And today different ML channels with different text started reposting it. Why do people lack critical thinking?I’m not 100% sure it’s fake.…

Computer Vision

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How do I audit Solidity smart-contracts

26.08.2023

1. Preparing a smart contract for audit is performed by the client himself: 2. Pre-reading the smart contract, checking the code for obvious problems 3. Smart contract code analysis 4. Compilation of the final report…

Smart-contract audit Solidity

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How to create and deploy an NFT smart-contract ERC721 with Open Zeppelin (a developer guide)

15.08.2023

A technical guide on how to launch an NFT-collection on the Ethereum blockchain with an ERC721 smart-contract, based on Open Zeppelin, and than putting it for sell on the OpenSea and Blur marketplaces.…

NFT smart-contract

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How to publish your Remix code on Github gist

10.08.2023

To publish Remix contract code in Github gist, it will ask you an access token: 1. Go to Remix1 settings and create one: 2. Go to Github gist2 link, mentioned in the Github section of Remix Settings, choose Expiration date and hit “Generate token”: 3. Insert this token in the “Github” fields of the Remix…

Github Remix

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AI powered map of YouTube travel videos (vOtpuskSam.ru)

28.07.2023

vOtpuskSam.ru – is an AI powered daily feed of YouTube travel videos on a map, based on NLP and Named Entity Recognition. The project is founded and built by BeWebi, and shows current geo position of travel bloggers, their videos, and allows to watch the videos on the platform. The main problem of modern society…

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PnL reports automation for a DeFi hedge fund

PnL reports automation for a institutional-grade DeFi hedge fund.
Web3 and related tech.*…

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How to install Docker on Ubuntu 20.04 TLS in 7 steps

20.07.2023

1. Update your existing list of packages: 2. Install a few prerequisite packages which let apt use packages over HTTPS: 3. Add the GPG key for the official Docker repository to your system: 4. Add the Docker repository to APT sources: 5. Make sure you are about to install from the Docker repo instead of the default…

Containers and K8S

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The Top Mapping and Map APIs / SDKs Review (Google Maps, Yandex Map, MapBox, OpenLayers, Leaflet)

18.07.2023

To display objects on the map and the possibility of interactive interaction with them, it is necessary, firstly, to have the base map itself, which is used for the main rendering of various layers – countries, cities, water, etc., and secondly, an SDK for working with your data, which the system loads, processes and transfers…

clustering on a map google map leaflet map mapbox openlayers openstreetmap yandex map

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Electre 1 method on a real example of choosing the best map API

17.07.2023

Suppose that we are building a mapping system to show travel videos from YouTube on a map (see the figure above). To select an interactive system for positioning objects on the map, we will use Electre 1 method for the analysis.Alternatives that we will consider as part of the analysis for interactive display of objects…

electre google map mapbox yandex map

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Divi mobile menu: collapse nested menu items

21.06.2019

If you have a Divi-powered WordPress website with a large menu, contained nested menu items, you can face with the following issue for the mobile and tablet views: the nested menu expands, holds the whole screen and some menu elements can be hidden. There is a hack to make the Divi mobile menu look more…

divi wordpress wordpress snippet

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WordPress snippets 2023

25.05.2019

Disable WordPress database revisions: wp-config.php add above ‘require-once’: Delete revisions from WordPress database: Perform the following SQL query on your database in PHPMyAdmin Customize “Read more” button functions.php Add “Read more” button for excerpts functions.php…

wordpress wordpress snippet

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jQuery: $.postJSON

07.02.2019

Is your request very big for $.getJSON() and you are looking for post alternative in jQuery to send large amount of data? I have bad news for you: there is no such function as $.postJSON() in jQuery. But, there is a way out: we can still perform AJAX post requests in JSON format by simply…

jquery

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How to remove fields from a WordPress comment form

06.02.2019

To remove unnecessary fields, like email, name (author), website (url) from a WordPress comment form use this snippet (just remove rows with the fields which you want to leave in the form):…

wordpress wordpress snippet

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WordPress AJAX: a simple example without plugins

Here is a quick and simple example of how you can use AJAX call in WordPress without a plugin. This can really help if you are stacked in a mess of big AJAX tutorials around WordPress. AJAX call from your Java Script: PHP-part, placed in functions.php: That’s it! Cheers!…

quick tutorial wordpress wordpress snippet

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How to remove extra p-tags from shortcode in WordPress? Wpautop function

24.09.2018

When you perform “add_shotcode” in your functions.php, WordPress automatically and unnecessarily adds extra <p> tags above and below the shortcode content. In most of the cases, you don’t need this strange feature. To stop WordPress from adding these empty p-tags you can use this snippet:…

wordpress wordpress snippet

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Cluster analysis as a tool for customer satisfaction research

11.07.2017

Using k-means clustering for segmentation of unsatisfied customers. The article published in Russian journal.…

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Loyalty of the cellular operator subscribers: the essence and influencing factors

Using Regression and Factor analysis for revealing latent factors influencing customer loyalty. The article published in a Russian journal “Practical marketing”.…

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Standart deviation analysis of customer satisfaction scores

The correction of existing method of customer satisfaction analysis. An article published in Russian journal.…

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