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Dog Breed Identifier: Full Cycle Development from Keras Program to Android App. on Play Market

Reading time25 min
Views16K
Java * Python * Artificial IntelligenceImage processing * Development for Android *
With the recent progress in Neural Networks in general and image Recognition particularly, it might seem that creating an NN-based application for image recognition is a simple routine operation. Well, to some extent it is true: if you can imagine an application of image recognition, then most likely someone have already did something similar. All you need to do is to Google it up and to repeat.

However, there are still countless little details that… they are not insolvable, no. They simply take too much of your time, especially if you are a beginner. What would be of help is a step-by-step project, done right in front of you, start to end. A project that does not contain «this part is obvious so let's skip it» statements. Well, almost :)

In this tutorial we are going to walk through a Dog Breed Identifier: we will create and teach a Neural Network, then we will port it to Java for Android and publish on Google Play.

For those of you who want to see a end result, here is the link to NeuroDog App on Google Play.

Web site with my robotics: robotics.snowcron.com.
Web site with: NeuroDog User Guide.

Here is a screenshot of the program:

image

Read more →
Total votes 11: ↑11 and ↓0+11
Comments6

Web application firewalls

Reading time6 min
Views4.1K
Amazon Web Services * Information Security * CyberpunkWebsite development *
From sandbox

Web application firewall


Web application firewalls (WAFs) are a type of intrusion detection and prevention system and might be either a hardware or software solution. It is specifically designed to inspect HTTP(s) and analyse the GET and POST requests using the appalling detection logic explained below. Web application firewall software is generally available as a web server plugin.

WAF has become extremely popular and various companies offer a variety of solutions in different price categories, from small businesses to large corporations. Modern WAF is popular because it has a wide range of covered tasks, so web application developers can rely on it for various security issues, but with the assumption that this solution cannot guarantee absolute protection. A basic WAF workflow is shown below.



Its main function is the detection and blocking of queries in which, according to WAF analysis, there are some anomalies, or an attacking vector is traced. Such an analysis should not make it difficult for legitimate users to interact with a web application, but, at the same time, it must accurately and timely detect any attempted attack. In order to implement this functionality, WAF developers usually use regular expressions, tokens, behavioural analysis, reputation analysis and machine learning, and, often, all these technologies are used together.



In addition, WAF can also provide other functionality: protection from DDoS, blocking of IP-addresses of attackers, tracking of suspicious IP-addresses, adding an HTTP-only flag to the cookie, or adding the functionality of CSRF-tokens. Each WAF is individual and has a unique internal arrangement, but there are some typical methods used for analysis.
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Total votes 15: ↑13 and ↓2+11
Comments0

Zotero hacks: unlimited synced storage and its smooth use with rmarkdown

Reading time7 min
Views27K
Open source * R * Lifehacks for geeksData storagingStudying in IT
Tutorial
Here is a bit refreshed translation of my 2015 blog post. The post shows how to organize a personal academic library of unlimited size for free. This is a funny case of a self written manual which I came back to multiple times myself and many many more times referred my friends to it, even non-Russian speakers who had to use Google Translator and infer the rest from screenshots. Finally, I decided to translate it adding some basic information on how to use Zotero with rmarkdown.


A brief (and hopefully unnecessary for you) intro of bibliographic managers


Bibliographic manager is a life saver in everyday academic life. I suffer almost physical pain just thinking about colleagues who for some reason never started using one — all those excel spreadsheets with favorite citations, messy folders with PDFs, constant hours lost for the joy-killing task of manual reference list formatting. Once you start using a reference manager this all becomes a happily forgotten nightmare.

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Total votes 13: ↑12 and ↓1+11
Comments6

Crystal Blockchain Analytics: Investigating the Hacks and Theft Cases

Reading time8 min
Views3K
Bitfury Group corporate blogDistributed systems * CryptocurrenciesInformation Security * System Analysis and Design *
In this report, Bitfury shares analysis completed by its Crystal Blockchain Analytics engineering team on the movement of bitcoin from the Zaif exchange, Bithumb exchange and Electrum wallets.

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Total votes 15: ↑13 and ↓2+11
Comments0

Implementation of the digital mobile-only bank in Kazakhstan

Reading time9 min
Views4.2K
Finance in IT
From sandbox
In today’s world, Kazakhstan carries out significant improvement work for the economic situation of the country. As part of a commission from Head of State, National Bank of Kazakhstan has revoked licenses of three commercial bank pursued high-risk policy (NBK, 2017). Furthermore, over the past 10 years, 7 second-tier banks have gone into liquidation as well as the liabilities of the commercial banks as a whole have increased by 70 per cent or 5.5 trillion Tenge (Hereinafter — KZT). NBK plans to continue treatment the real economy sector, withdrawal of financial institution, restructuring its assets to well-balanced entities.

On the other side of the world, the digital and mobile banks namely, Starling bank, Monzo, N26 are becoming increasingly popular among society in the United Kingdom. As a vivid illustration, Starling Bank has increased considerably the number of customers for 8 times (up to 400 000 people) at the end of the 2018 year (Starling Bank, 2019). At the same time, one million clients have joined and used Monzo’s services (Monzo). Such tendency establishes substantial competition for all players including high-street banks in the payments market.

In consequences, the main object of the paper is identification the advantages of digital bank and illumination capabilities to deploy analogous mobile bank in Kazakhstani real financial sector.
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Total votes 17: ↑14 and ↓3+11
Comments5

Turning a typewriter into a Linux terminal

Reading time3 min
Views10K
Developing for Arduino * Development for Raspberry Pi * Circuit design * Old hardwareAbnormal programming *
From sandbox

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.

See how it works
Total votes 10: ↑10 and ↓0+10
Comments5

Спасти производство во время пандемии: личный опыт

Reading time6 min
Views129
GadgetsSales management *
Вызванный пандемией экономический кризис ударил по экономикам всего мира двумя путями: снижение и частичная остановка экономической активности из-за карантинных мер в разных странах, и вызванными локдаунами нарушениями цепочек производства и поставок. Одно из достижений, которым гордилась современная экономика — это тонко настроенное глобальное разделение труда, при котором логистические цепочки растянуты по всей планете, и поставки по ним ходят «встык», без задержек — и, как следствие того, без запаса.



В результате этого, выход из карантинного состояния обернулся для многих секторов экономики, своего рода, афтершоком. После периода просевшего спроса и нарушенных цепочек производства-поставки, они столкнулись с эффектом отложенного спроса — и даже просто возвращение к докризисному уровню оказалось шоковым для выходящих из экономической гибернации бизнесов. Как результат — возникли перегрев рынка и инфляция в отдельных сферах экономики. Многие потребители в тех или иных сферах ощутили на себе, как продукты и услуги, невостребованные, когда им было не до них в разгар локдаунов и связанных с ними проблем, оказались в дефиците или подорожали после ослабления карантинных мер.

В этой ситуации выиграли те бизнесы, которые были готовы к такому повороту событий. Разумеется, подготовиться к замедлению экономической активности заранее никто не мог, поскольку предсказать серьёзность мер в ответ на пандемию до их принятия во многих случаях до последнего момента не могли даже правительства разных стран, то предугадать их экономические последствия на ход-два вперёд было вполне возможно.
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Total votes 10: ↑10 and ↓0+10
Comments0

System-on-Chip bus: AXI4 simplified and explained

Reading time20 min
Views38K
RoboticsManufacture and development of electronics * Circuit design * Programming microcontrollers * FPGA *

Protocol AXI4 was developed for High-bandwidth and low latency applications. It is designed to allow communication between master and slave devices. Master is typically a DMA or CPU and slaves are DRAM controllers, or other specific protocol controllers: UART, SPI, and others. Sometimes one component can implement multiple instances of this protocol. Usually, a prefix is used to differentiate between multiple AXI4 interfaces.

For example, Ethernet MAC can integrate DMA and slave interface used to command MAC. MAC can accept commands on the slave interface that contain data about the location of the next ethernet packet and MAC can start fetching this packet using the separate master interface instance.

This article was motivated by common design mistakes AXI4 designers make when they are designing their Digital IP. (Looking at you Xilinx)

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Total votes 10: ↑10 and ↓0+10
Comments2

Internet of Things (IoT) is going to Change the World. Future of IoT

Reading time3 min
Views1.8K
IOTArtificial IntelligenceSoftwareMachine learning *
For the past two years, there’s been a lot of buzzing about the Internet of Things (IoT). This has to lead to the rapid selection of connected devices over industries and is determined to pass the 11 billion mark by the end of the year. Major Companies including IoT software development as their major services.

All these “things” are now creating their things, namely, lots and lots of data. This data will be at the core of commercial and industrial digital transformation (which is essentially the underlying force behind the fourth industrial revolution).

In other words, life as we know it is about to change forever! How is it going to change? Let’s take a look.

1. AI (Artifical Intelligence) can Effectively Manage Oceans of information

We can’t talk about IoT without AI as the latter has the power to make IoT a whole lot smarter and more efficient.

In fact, consultants believe that AI is the brains behind IoT systems that may facilitate build them run power tool.

For example, as more and more connected devices start communicating with each other, enterprises will need to leverage deep learning, image recognition, natural language processes, and neural-network driven decisions to help them understand each other (and us humans) better.

So far, we can say that IoT has felt like an isolated experience where it was just about simple data. Going forward, businesses will strive to achieve highly integrated experiences by using AI to better understand their employees, customers, and the general public living in smart cities.
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Total votes 10: ↑10 and ↓0+10
Comments6

A selection of Datasets for Machine learning

Reading time5 min
Views7.3K
Data Mining * Python * Artificial IntelligenceMachine learning * Open data *
Hi guys,

Before you is an article guide to open data sets for machine learning. In it, I, for a start, will collect a selection of interesting and fresh (relatively) datasets. And as a bonus, at the end of the article, I will attach useful links on independent search of datasets.

Less words, more data.

image

A selection of datasets for machine learning:


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Total votes 12: ↑11 and ↓1+10
Comments0

How to make possible micro-payments in your app

Reading time8 min
Views5.4K
Programming * Payment systems * CryptocurrenciesDecentralized networks * Open source *
Tutorial
From sandbox

This week I spent coding my very first public pet-app based on Telegram chat bot which acts as a Bitcoin wallet and allows to send and receive tips between Telegram users and other so-called “Lightning Apps”. I assume that you are familiar with Bitcoin & Telegram in general, i’ll try to post short and without deep jump into details. More resources about Bitcoin can be found here and Telegram is simply an instant messenger that allows you to create your custom apps (chat-bots) using their platform.


What are the key points of such app?


  • Allows to rate other users ideas and answers with real value instead of
    ‘virtual likes’. This brings online conversation to completely new level
  • Real example of working micro-payment app which can act with other entities
    over internet using open protocol
  • All the modules are open-source projects and can be easy re-used and adjusted
    for your own project. App does not relay on third-party commercial services.
    Even it falls under e-commerce field, which is currently almost closed, the app
    is based on open solutions.

What are the use-cases?


something like this…

image
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Total votes 12: ↑11 and ↓1+10
Comments0

7 Interesting startups in IoT

Reading time9 min
Views2.7K
IOT
The “winner takes all” principle seems to be less relevant to a startup business model than to a corporate business. Why so? The thing is that a cumulative advantage inherent in a contemporary globalized economy when the bigger you are the more chances you have for a further growth works beyond poorly regulated environments to which startups belong. The startup phenomenon in general and the IoT startups in particular are too immature in terms of a business-model history. In contrast to corporations, startups feel good in a Black-Swan-friendly uncertainty of emerging innovations. They operate in risky fields, they gamble oftentimes. But an immense focus on their own topics is what helps them survive. Indeed, dedication is an antidote to risks.

Originally article was posted here — 5 IoT startups in Logistic
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Total votes 10: ↑10 and ↓0+10
Comments0

Board game for learning the basics of electrical circuits. Why not?

Reading time3 min
Views5.2K
DIYLogic gamesElectronics for beginners


I made the “electric” designer of… cardboard. Alas, the project still remains at the prototype stage, not developing into an industrial “physical” look and is waiting for its time (and investor).


But I decided to go further — once we started making cardboard, we’ll bring the situation to its logical conclusion — we’ll make a complete cardboard board game, but with an electric setting and a learning effect. There were a lot of options — starting from a simple “walker” and ending with Ameritrash from a zombie with electron movement and vicious short circuits and swollen capacitors.


As a result, I decided to dwell on a logical abstract, since the schematics of electrical circuits are very suitable for it. Said and done — as a result of the first iteration, the game “Circuit” was born.

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Total votes 12: ↑11 and ↓1+10
Comments1

Smart Lock: Why sloth is a driver of the IoT progress

Reading time6 min
Views1.8K
IOTDevelopment for Raspberry Pi *
When you are sitting in your comfy chair in your cool modern office, anything distracting you from your favorite routine is really annoying. Some may call it a sign of sloth, but in fact, it relates to optimization of workflows. Our computers and smartphones provide us with many opportunities to do a lot without leaving our place. Software as such cares about our control over the physical world by just clicking and tapping. Indeed, the digitization advances: what people have had to do with their muscles for centuries in the past, could be done with either a voice command or a text message today thanks to numerous remotely controlled gizmos. And the IoT plays a crucial role in all this for a reason.
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Total votes 12: ↑11 and ↓1+10
Comments0

Top 10 IoT sensors in 2019

Reading time8 min
Views5.1K
IOT
The very paradigm of automation where IoT solutions play a key role is based on a presumption that machines can act in both autonomous and intelligent manners. And what enables them doing so is a capability of handling tremendous flows of collected data.

The collectible data includes those various signals that both animate and inanimate object can send to the IoT systems. Hence, the objects should have some highly specific signal-generating devices to share information within the IoT.
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Total votes 12: ↑11 and ↓1+10
Comments0

Creator of while True: learn() on programming in game development, VR issues and machine learning simulation

Reading time22 min
Views4.5K
AR and VRGame design * InterviewMachine learning * Game development *
Translation


A few years ago I had a feeling that Oleg Chumakov (then working at the game studio Nival) was the most famous programmer in the game development industry. He was giving speeches, hosted Gamesjams and frequently showed up on the podcast How games are made.

When VR hit the market, Oleg was chosen to lead the company’s new department — NivalVR. But, as you probably know, VR didn’t quite take off as much as people expected.

I kind of moved to other to other things in life and stopped keeping up with game development for a while, but after getting into it again I noticed that things were looking up for Oleg’s team. Now it’s called Luden.io, and their machine learning expert simulator, while True: learn() became a huge hit in its admittedly small niche. Lots of cool stories are happening around the game and the team.

We decided to do an interview with Oleg, but I couldn’t stick to one topic — his life up to this moment has been, for the lack of a better word, “interesting”. He’s seen it all. And, to ensure that a programmer could talk about programming without fear of looking too “nerdy”, the interview was conducted by my friend, colleague and an experienced developer of its own fillpackart.
Total votes 16: ↑13 and ↓3+10
Comments0

New features of the hybrid monitoring AIOps system Monq

Reading time10 min
Views1.3K
Gals Software corporate blogSoftwareSystem administration * IT Infrastructure * IT systems testing *


In one of the previous articles, I’ve already written about the hybrid monitoring system from Monq. Almost two years have passed since then. During this time, Monq has significantly updated its functionality, a free version has appeared, and the licensing policy has been updated. If monitoring systems in your company start to get out of control, and their number rushes somewhere beyond the horizon, we suggest you take a look at Monq to take control of monitoring. Welcome under the cut.
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Total votes 9: ↑9 and ↓0+9
Comments0

Modern Google-level STT Models Released

Reading time2 min
Views5.5K
Big Data * SoundMachine learning * Start-up development


We are proud to announce that we have built from ground up and released our high-quality (i.e. on par with premium Google models) speech-to-text Models for the following languages:


  • English;
  • German;
  • Spanish;

You can find all of our models in our repository together with examples, quality and performance benchmarks. Also we invested some time into making our models as accessible as possible — you can try our examples as well as PyTorch, ONNX, TensorFlow checkpoints. You can also load our model via TorchHub.


PyTorch ONNX TensorFlow Quality Colab
English (en_v1) ✓ ✓ ✓ link Open In Colab
German (de_v1) ✓ ✓ ✓ link Open In Colab
Spanish (es_v1) ✓ ✓ ✓ link Open In Colab
Read more →
Total votes 9: ↑9 and ↓0+9
Comments0
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