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What is Test Automation?
Automation testing is a Software testing technique to test and compare the actual outcome with the expected outcome. This can be achieved by writing test scripts or using any automation testing tool. Test automation is used to automate repetitive tasks and other testing tasks which are difficu... | ['Test Automation'] |
Test automation is the management and performance of test activities, to include the development and execution of test scripts so as to verify test requirements, using an automated test tool.
Types of Automated Testing
Code-driven — Unit Tests GUI(End to End Test Automation) API/Service Test Automation — Restful APIs... | ['Selenium', 'Test Automation'] |
Automation is the doing the repetitive tasks using the machines as tools reducing the human intervention. Humans are more error prone and less effective.
In definition given in Wikipedia, in software testing, test automation is the special software to control the execution of tests and the comparison of actual outcome... | ['Selenium', 'Software Testing', 'Test Automation Framework', 'Test Automation'] |
An important part in a software development is the software testing. This phase ensures that the software products are working according to the user requirements.
Test automation is the practice of running tests automatically, managing test data, and utilizing results to improve software quality.
Why Test Automation?... | ['Test Automation', 'Automation Testing Tool'] |
In our degree program, there is a compulsory course module we follow in our second year. That is Software Verification and Validation. As a part of this course module, we had a session about Test Automation conducted by an associate conduct specialist. So let’s see about test automation and tools which are useful for s... | ['Selenium', 'Test Automation'] |
Automation is usage of tools in repetitive energy consuming tasks in order to reduce human intervention and to increase efficiency. In software testing, test automation is the use of special software to control the execution of tests and the comparison of actual outcomes with predicted outcomes.
Test automation has ma... | ['Software Testing', 'Test Automation', 'Software Engineering'] |
What is Software Testing
Software testing is a process, to evaluate the functionality of a software application with an intent to find whether the developed software met the specified requirements or not and to identify the defects to ensure that the product is defect-free in order to produce a quality product.
Why S... | ['Selenium', 'Software', 'Software Testing', 'Test Automation', 'Testing'] |
What is Test Automation?
An investigation performed by a human to provide project stakeholders with information about the quality of the software under development, we called it as Testing Software. The uses of software tools (or automation code) and the power of machines to control the execution of tests, compare the... | ['Selenium', 'Selenium Test Automation', 'Test Automation', 'QA'] |
What is Testing and Automated testing?
Testing is a very important phase in the software development life cycle.It is a process, to evaluate the functionality of a software application with an intent to find whether the developed software met the specified requirements or not and to identify the defects to ensure that... | ['Selenium', 'Test Automation Framework', 'Test Automation', 'Testing', 'Test Automation Tools'] |
Test automation — using automation tools to execute test case suites — delivers numerous benefits, including greater time- and cost-efficiency, the ability to run tests unattended/overnight, and a lower risk of integration and production issues.
Particularly well suited to automation are test cases that are:
New or m... | ['Automation Testing', 'Process Improvement', 'Process Automation', 'Automation', 'Test Automation'] |
Photo by Kelly Sikkema on Unsplash
A couple of months ago I was being interviewed for a QA role by a startup company. When I asked what was their test strategy the interviewer replied that they automate all the scenarios with Cypress. To me it was a red flag for several reasons, thus I started to ask more questions. B... | ['Qa Testing', 'E2e Testing', 'Test Automation'] |
And the winner is… the users!
There are a number of libraries and applications that can help you to automatically detect accessibility issues. Though it’s not really clear how much of the WCAG spec can be tested in this manner. Some say twenty percent, some say fifty. Well, it doesn’t really matter because it’s clear ... | ['Test Automation', 'Accessibility', 'Svt', 'Public Service', 'WCAG'] |
Your team has started to implement a whole set of APIs. While they seem powerful for the business, you have a new challenge to solve: testing them. Manual testing is fine for some cases, but you quickly need automation.
Implementing the right API test automation right requires structure to ensure its implementation. T... | ['API', 'Software Testing', 'Test Automation', 'Testing', 'Api Testing'] |
Elixir/Phoenix How You Can Cut Test Time by 80% With Development Specific Test Suites. Brooklin Myers Aug 30·5 min read
Use The --slowest and --exclude Flags to Profile Your Slowest Tests.
Tests are wonderful. Tests are little rules and assertions that you can put in your codebase that guarantee you haven’t broken an... | ['Test Driven Development', 'Elixir', 'Mix', 'Phoenix', 'Test Automation'] |
Hi there! This is our next article in the long cycle of articles related to efficient browser automation infrastructure. Full list of articles is published on our website. Those of you who are following our activities should already know that several years ago we created Moon — an efficient solution for running Seleniu... | ['Selenium', 'Test Automation', 'Kubernetes', 'Selenium Test Automation', 'Cypress'] |
Everything is covered! (Photo by Ricardo Resende on Unsplash)
A couple of weeks ago, I saw a guy asking on Twitter: Does it make sense to have 100% test coverage in a front-end project? After reading some comments, I stepped up into the conversation (because it is Twitter, that is what we do there) and asked him back:... | ['QA', 'Software Engineering', 'Software Development', 'Quality Assurance', 'Test Automation'] |
It was 8:00 AM and I entered the Zoom call. Kalisha was at home, greeting the morning with a coffee. Smiling like it wasn’t a Tuesday morning.
I recently embarked on a journey to find out how the top players from the Valley are delivering you a bug-free experience.
The fact was, Kalisha isn’t just your average Softwa... | ['Web Development', 'Software Testing', 'Software Development', 'Test Automation', 'DevOps'] |
Technical debt. Bringing features live faster by taking shortcuts in the source-code. As a result, future features are harder to build because the source-code got more complex.
The same applies to testing. A lack of automated tests slows a team down and makes it more complicated to release software. Especially, when y... | ['Continuous Delivery', 'Software Development', 'Test Automation', 'Test Debt', 'Technical Debt'] |
In this post I will go through steps to integrate Cucumber reports in Jenkins for Karate tests. If you have not performed karate — Jenkins integration, please go through my previous post.
I. Install Cucumber Reports in Jenkins
Go to Jenkins Dashboard ->Manage Jenkins ->Manage plugins ->Available -> Cucumber reports -... | ['Reporting', 'Jenkins', 'Karatê', 'Test Automation', 'Api Testing'] |
With larger, more complex applications and infrastructure, more intricate CI pipelines with various steps and stages and so on, the need to have your Cypress tests run on different environments often arises.
Typically, our integration tests run in a dedicated build step once we’ve deployed to Development and that’s th... | ['Test Automation', 'Ci Cd Pipeline', 'Environment Variables', 'Cypress', 'Testing'] |
This article will explore the role of QA in DevOps, highlighting the place DevOps testers hold in the ecosystem.
Let’s begin with defining some of the relevant terms:
DevOps: DevOps applies Agile practices to QA and Ops teams, thus streamlining the build, validation, deployment, and development of software. It seeks ... | ['Ci Cd Pipeline', 'Cicd Tools', 'QA', 'DevOps'] |
Cryptocurrency, like bitcoin and others, was the topic for discussion in the last few years. The extensive growth in the sector has made this concept so popular, and people started looking for the base idea, and it was “Blockchain”.
Due to immense growth Blockchain, gained the attention of users. Leading organizations... | ['Outsourcing', 'QA', 'Software Testing', 'Blockchain Application', 'Software Development'] |
Understand how to overcome challenges with optimized processes using a combination of DevOps and QA
There is a need for faster yet very high-quality testing which can be tough to achieve without the right approach. Here are some best practices to overcome challenges with optimized processes using a combination of DevO... | ['Agile Methodology', 'Software Testing', 'QA'] |
Part 9: Meet Ranjith Kumar
Welcome to week 9! We’re one post away from our final Employee Spotlight, but it’s not the end yet!
Last week you met Pole, and on week 5 you met Vidhya, who are both parts of the QA Team. This week you’ll meet our QA Team Lead, Ranjith, who shares a more in-depth conversation about his rol... | ['Aequilibrium', 'Technology', 'QA', 'Employee Spotlight'] |
5 Ways to Enhance the software quality assurance & testing
Improving quality assurance (QA) is a vital element of project management because it helps enhance cost-effectiveness and helps deliver superior performance. It, in return, improves software quality and helps in the reduction of costs. The better the QA team, ... | ['Qa Testing', 'QA', 'B2B', 'Software Testing', 'Testing'] |
Messages and questions in virtual events come in continuously and this makes chatters get lost in the conversation. Arranging a Q&A chat session in your event may be the solution to that.
Especially in huge events, participants may be hundreds or thousands, so others might not get the chance to submit their questions.... | ['Virtual Events', 'QA', 'Questions Answers', 'Question And Answer', 'Chat'] |
Bored Doing Manual testing? Tired of same test case writing and same Bug reporting? May be yes!🥱 But can we automate every thing? Big No. Both manual and automation testing are really important . Here we will walk through Importance of QA Automation and What skills you should learn to be an expert in Quality Assurance... | ['Why Automation', 'Qa Testing', 'Qa Road Map', 'QA'] |
Most people involved with web development are familiar with console.log(). It’s a tried and true mechanism for testing and validating code, troubleshooting, and generally sending feedback to the browser as code executes. What you may not know, however, is that there’s so much more to “console” than just .log().
Here a... | ['JavaScript', 'Web Development', 'Analytics', 'QA'] |
An issue most of us have seen!
Some web-elements are dynamically generated as a result of a previous action. For example, selecting a check-box in a web-form might populate the UI with another panel or field. Often these elements similarly have a dynamically generated Class or Attribute name and no static ID or Class ... | ['Web Elements', 'QA', 'Regular Expressions', 'Cypress', 'Testing'] |
Just like any other software product, chatbots require thorough testing. A bot can communicate with lots of customers simultaneously, but the value of this communication will depend on a number of tech aspects and overall usability. So to make sure the chatbot satisfies your business expectations, a project team will n... | ['Software Testing', 'Chatbot Testing', 'Chatbots', 'QA'] |
2018我有兩部作品在第三屆全球默片影展The Globe International Silent Film Festival入選，《跳房子》入選最佳短片，《空一格，戲院》並榮獲佳實驗片獎）
在眾多短片影展中，這是很一個特殊的─以「默片」為主題的影展，它有些很打動我的徵件信念敘述：我們相信，電影的沉默時代（1895–1930）使得畫面更加豐富，更加強大。儘管在電影中引入了聲音，但很久以前我們已經過去了這個時代，但是沉默的電影卻帶有很多前衛藝術電影……還有，對silent詳細的條件之：電影節只接受“沉默”的電影。這意味著電影不能包含對話或敘述，但使用音效和樂譜（音樂配樂）是可以接受的。 使用穿插字卡intertitles是可以接受... | ['Documentary Exprimental', 'QA', 'Cinema', 'Gisff'] |
3. Other cases
There can be a failure if you give an access in an application to use something (camera or files, for example) on Android, then minimize an app and turn the access off in application system settings.
If you press different buttons fast or at the same time there is a possibility of an application failin... | ['Mobile App Development', 'QA', 'Mobile Apps', 'Tricks', 'Testing'] |
QA
by Kevin Yu
About quality
Good quality can be defined as the successful completion of a project developed without a bug while meeting the needs of prospective users within a planned schedule and budget. “QA” stands for quality assurance. It refers to the task of performing various tests and inspections prior to t... | ['Blockchain', 'QA', 'Edenchain', 'Bitcoin', 'Cryptocurrency'] |
Why QA Engineers Are Underrated
By Seher Sarin
“Software testing may seem like a redundant and straightforward process. All you have to do is push a few buttons, and wait for a response to see if it matches with the expected response. If the actual result matches the expected result the test passes else, it fails.” —... | ['Development', 'QA', 'Regression Testing', 'Software Development', 'Test Engineering'] |
Ministry of Testing’s Weekly Software Testing Newsletter
This newsletter is kindly supported by Vornex!
Temporal testing is critical for date sensitive business rules such as insurance rates, billing, and enrollment. Efficient time travel testing can increase your test coverage, accelerate development, and improve so... | ['QA', 'Software Testing', 'Software Development', 'Testing', 'DevOps'] |
In this video, We are going to answer very important topic for any Software Tester, How do I prepare for Selenium Automation Testing Interview and What are the important concepts that I should Know to crack the Selenium Interview.
I have discussed the high level concepts that you should start preparing for the same to... | ['Selenium', 'Web Development', 'QA', 'Automation', 'Testing'] |
Have you ever wondered how to secure a mobile project? Maybe you have even started conducting research, only to become even more confused about the topic? If you answered “yes” at least once, then let me give you a helping hand! In this article, you will learn how to test the basic aspects of security in the modern mob... | ['Security', 'QA', 'Apps', 'Mobile', 'Testing'] |
Here at Moneybox, our QA team have recently started setting up an automated testing framework. This means tests that were previously manual are now potential candidates for being automated and run by a machine! Obviously this isn’t a magic bullet — by automating tests we are writing code and adding to our codebase, whi... | ['Selenium', 'QA', 'Automation', 'Appium', 'Fintech'] |
Bumble is the parent company that operates Badoo and Bumble, two of the world’s largest dating and connection apps with millions of customers worldwide. Delivering new functionality as fast as possible is a priority. However, it is important that the speed with which we work in no way compromises the quality of our app... | ['iOS', 'QA', 'Mobile', 'Automation', 'Testing'] |
After years of being a QA Engineer, I decided to share some tips about communication with Developers. Here are my observations regarding that.
❌ DON’TS
Don’t distract a developer if it’s not urgent. Don’t come over to its desk right away. Ask via messenger first or schedule a meeting in advance. I realized that once ... | ['Development', 'QA', 'Communication', 'Team', 'Product'] |
Photo by Sigmund
If you are a tester, what soft skills do you think you have in common with your fellow testers?
If you want to become a tester, this can help you understand what are the important soft skills for these roles.
Note: in this article, a tester can be: a QA, a QC, a SDET, or any names that are given to ... | ['QA', 'Software Testing', 'Tester', 'Software Development', 'Soft Skills'] |
The Basics
What is an API?
When a website is created for human users, it has a graphical interface. People parse websites visually, looking for common design elements such as headers, navigation, the content section, maybe some metadata.
When we build something for other developers, we call it API: Application Progr... | ['QA', 'Programming', 'Software Development', 'Quality Assurance', 'Testing'] |
I decided to talk about the testing scope since I realized that not everyone clearly understands what it is and how to define it. What should be included and what should be ignored? How detailed should the scope be? Do I have to align it with my stakeholders? What if the deadline is coming, and I don’t have enough time... | ['Scopes', 'Test', 'Testing', 'QA'] |
A little over a year ago, I was looking to leave my previous position at a large consulting agency. At the time, I was working as a business analyst and was wearing a few too many hats. I was looking to transition away from the waterfall-heavy role and more into a design-based role, such as a UX Designer. I stumbled up... | ['QA', 'User Experience', 'Software Development', 'Careers', 'Quality Assurance'] |
Photo by Icons8 team on Unsplash
If you’re an Agile tester, odds are that the start of each sprint begins with the question of what to do with the user stories. It’s easy for developers — pick a user story off the “To Do” pile and start working on it. In my experience, there are rarely stories or tasks written for the... | ['QA', 'Testing My Story', 'Software Testing', 'Automation', 'Quality Engineering'] |
We were a little late to the cloud party, but we are now well and truly caught up. 3 years back we began a transformation at CRC that we quickly realised would have no end date. Our first step was a jump from our own hardware and into the cloud then we took a fresh look at buying services to minimize what we build. Now... | ['UX', 'QA', 'Software Development', 'Serverless', 'DevOps'] |
Q1) What is a project?
a) routine
b) temporary
c) permanent
d) repetitive
Q2) A project must have a
a) Start Point
b) End Point
c) Reward
d) Start Point and an End Point
Q3) Operations
a) are repetitive activities, such as production
b) are initiated by the organisation for a variety of reasons
c) are one-... | ['Skills', 'Questions', 'QA', 'Test', 'Project Management'] |
It’s a common age old adage, the ongoing war between Software Engineer and QA Engineer, the eternal struggle between the bright eyed, and those tasked with enforcing practical reality.
I mean not to demonise either party here, this is exactly the picture that can be seen if both are performing their roles adequately.
... | ['Product Management', 'Android', 'Software Engineering', 'QA'] |
Few months ago, I wrote an article about a dockerized JMeter starterkit. A Github template repository that anybody can use to easily start a new performance project. The downside of docker, and docker-compose, is that it’s hosted on a single host. You can have multiple injectors for your JMeter distributed tests, but o... | ['Kubernetes', 'Starter Kit', 'Jmeter', 'QA'] |
Adapting QA processes for the automated fulfillment
In the near future Picnic will launch its first automated fulfillment center (AFC). With its launch Picnic is expected to double productivity and quadruple capacity with respect to its manual FCs. While the physical site is being constructed the tech team is focused ... | ['QA', 'Testrail', 'Fulfillment', 'Afc', 'Wcs'] |
Whilst I am embarking upon my data science studies, I am endeavouring to learn as much as I can about time series analysis. I have previously written about univariate time series analysis using Facebook Prophet in the form of an Analytics Vidhya competition question covering the company, JetRail, with the link to it be... | ['Data Science', 'Fbprophet', 'Machine Learning', 'Time Series Forecasting', 'Python'] |
Proposed approaches
As explained above, the main challenge we faced was the absence of labelled data for shelf stock-outs, which prevented us from adopting the initial ML approach we had in mind. Therefore, we considered an alternative approach to build our detection model.
Time Series prediction of hourly sales
Our... | ['Data Science', 'Anomaly Detection', 'Forecasting', 'Retail', 'Time Series Forecasting'] |
3 Ways to Extract Features from Dates with Python
Photo by Maddi Bazzocco on Unsplash
Motivation
While working with time series, the values of your datasets might be affected by holidays, which day of the week, and how many days in a month. Is there a way that you can extract these features from your date feature wi... | ['Data Analysis', 'Data Science', 'Time Series Analysis', 'Time Series Forecasting', 'Python'] |
Prophet any Stock in Seconds
Install yfinance
With the Yahoo! Finance market data downloader (yfinance), we can pull historical data on virtually any stock with a single line of code.
You can install yfinance with pip;
pip install yfinance
From there, simply import the library, and pull a .Ticker() .
Pull & Prep ... | ['Prophet', 'Open Source', 'Stocks', 'Data Science', 'Time Series Forecasting'] |
DeepAR: Probabilistic Forecasting with Autoregressive Recurrent Networks
Amazon’s DeepAR is a forecasting method based on autoregressive recurrent networks, which learns a global model from historical data of all time series in the dataset. Keshav G Nov 25, 2020·5 min read
Summary of the model
ABOUT THE DATASET
Her... | ['Amazon', 'Deep Learning', 'Anomaly Detection', 'Machine Learning', 'Time Series Forecasting'] |
Sometimes the easiest part is the hardest part. Usually splitting your dataset to train, validation and test isn’t a complicated task, on the contrary. But when happens if you are using time series data or you want to custom your split. Then you need to adjust it rather than using a regular split. In one of my projects... | ['Data Science', 'Time Series Forecasting', 'Train Test Split', 'Time Series Analysis'] |
FB Prophet is not always the most suitable time series forecasting model Tracyrenee Follow Jan 21 · 4 min read
I have written a series of posts about a univariate dataset of shampoo sales dating back from 1901 to 1903. This series of posts would not be complete, however, without a post on Facebook Prophet, an open sou... | ['Data Science', 'Artificial Intelligence', 'Fbprophet', 'Time Series Forecasting', 'Python'] |
In this article, I will be discussing various methods used for time series forecasting. In the beginning, I will be touching the basic terminologies associated with time-series data and forecasts. Then I will be discussing the methods used for time-series forecasting. Going ahead, I will be discussing each and every me... | ['Time Series Forecasting', 'Arima', 'Time Series Analysis'] |
Report submitted for the semester project in my college.
Introduction
The expansion planning of Power systems begins with a forecast of anticipated load requirement in the coming future. Estimated ideas of the demand and required energy are integral to an effectively planned system[1]. The generation, transmission an... | ['Univariate Analysis', 'Time Series Analysis', 'Machine Learning', 'Time Series Forecasting', 'Analytics'] |
Regarding this first plot, we can see that at the end and at the beginning of each year the concentration of PM2.5 particles is higher than in other periods of the year, but it is still fuzzy data and we can barely have a better understanding of what is really happening. Because of this, some transformations are needed... | ['Artificial Intelligence', 'Machine Learning', 'Time Series Forecasting', 'Arima', 'Artificial Neural Network'] |
Hi folks! It was a long time since I published the first and second parts of this tutorial. Meanwhile I had the opportunity to talk with many people that applied FTS methods on several distinct fields, and they helped me to improve pyFTS library by fixing some bugs and expanding its features and usability.
We have bee... | ['Probabilistic', 'Fuzzy Logic', 'Time Series Forecasting', 'Interval', 'Towards Data Science'] |
What I want to do is build a model for sequence-to-sequence type prediction on the Dow Jones Industrial Average (DJI). However, rather than treat this as a regression problem, I want to discretize the problem, so that what I am predicting is one of a set number of possible “types” of predictions. Using SAX and PAA, I c... | ['Deep Learning', 'Time Series Analysis', 'Machine Learning', 'Time Series Forecasting', 'Dow'] |
We all encounter time-series data — information that changes over time — in one form or the other in our everyday life: surveys or statistics reported in news articles, usage reports about electricity consumption from our energy company, or even the performance of the stocks we invest in. Predicting the future is a cru... | ['Research', 'Visualization', 'Machine Learning', 'Time Series Forecasting', 'Predictions'] |
Data Preparation
Before building the great Machine Learning models, we prepare the data to our needs, so that we get the best results. We add some more time based features like ‘Year’, ‘Month’, ‘Week’, ‘Day’, ‘Dayofweek’, ‘Dayofyear’, ’weekofyear’, ‘Is_month_end’, ‘Is_month_start’, ‘Is_quarter_end’, ‘Is_quarter_start’... | ['Regression', 'Deep Learning', 'Machine Learning', 'Time Series Forecasting', 'Python'] |
Let’s face it. anyone who has worked on Time Series Forecasting problems in the retail, logistics, e-commerce etc. would have definitely cursed that long tail which never behaves. The dreaded intermittent time series which makes the job of a forecaster difficult. This nuisance renders most of the standard forecasting t... | ['Machine Learning', 'Time Series Forecasting', 'Deep Learning', 'Time Series Analysis'] |
When it comes to forecasting sales, most marketers rely on a simple function in excel, sometimes their boss’s fancy or even wild conjectures. While realistic forecasts are hard to put together, marketers can leverage pre-built machine learning regression models to their use. This now only gives realistic and pretty acc... | ['Sales Prediction', 'Machine Learning', 'Marketing Analytics', 'Marketing', 'Time Series Forecasting'] |
Time series forecasting is a very fascinating task. However, build a machine-learning algorithm to predict future data is trickier than expected. The hardest thing to handle is the temporal dependency present in the data. By their nature, time-series data are subject to shifts. This may result in temporal drifts of var... | ['Linear Regression', 'Artificial Intelligence', 'Data Science', 'Machine Learning', 'Time Series Forecasting'] |
1. Problem formulation
The task at hand is to forecast a single time-series value given a previous sequence of fixed length. The cryptocurrency chosen for the problem will be Satoshi Nakamoto’s creation, the one and only Bitcoin. But this can easily be extended to any token as you’ll find out in the upcoming section.
... | ['Data Science', 'Recurrent Neural Network', 'Deep Learning', 'Lstm', 'Time Series Forecasting'] |
How to Forecast Time Series Data Using Deep Learning
Time series (TS) forecasting is notoriously finicky. That is, until now.
Figure 1: DeepAR trained output based on this tutorial. Image by author.
In 2019, Amazon’s research team developed a deep learning method called DeepAR that exhibits a ~15% accuracy boost rel... | ['Machine Learning', 'Time Series Forecasting', 'Deep Learning', 'Time Series Analysis'] |
Here is an animated version showing these “monthly average weeks” or what we may call them. There are many interesting features to spot, such as shape changes of the daily curve with season or increasing “peakiness” in the winter months.
Averaged data: weekly and seasonal variability
Clustering — finding brothers and... | ['Utilities', 'Time Series Analysis', 'Time Series Forecasting', 'Python', 'Clustering'] |
Evaluating Models
Now that we have our data, we can already think about how we would want to evaluate and compare the different models we’ll build. Below we write a small function which performs backtesting and evaluates the accuracy of a 10-days ahead predictions over the last 20% of the flow series, using RMSE:
Fir... | ['Machine Learning', 'Timeseries', 'Python', 'Time Series Forecasting'] |
Walmart Store Sales Forecasting
Walmart is an American multinational retail corporation that operates a chain of hypermarkets (also called supercenters), discount department stores, and grocery items from the United States, headquartered in Bentonville, Arkansas. Walmart is the world’s largest company by revenue, with... | ['Sales Forecasting', 'Facebook Prophet', 'Machine Learning', 'Time Series Forecasting', 'Regression Modeling'] |
Time series modeling and cryptocurrency forecasting
XRP is the symbol for Ripple cryptocurrency. HODL (Hold on for Dear Life)
The ‘irrational exuberance’ that drove the 2017/18 rise was based on investors believing that trees could grow to the sky. Now that they see they can’t, those conditions probably won’t repeat ... | ['Sentiment Analysis', 'Data Science', 'Autoregressive', 'Cryptocurrency', 'Time Series Forecasting'] |
Technical background
European electricity spot market (also called day-ahead market) have become more and more fluctuating as the renewable energy share became larger. Renewable energy, often bidded at very competitive prices in the market, have a huge impact on regional electricity price and depends on non-determinis... | ['Electricity', 'Price Forecast', 'Machine Learning', 'Time Series Forecasting', 'Neural Networks'] |
Part 1: What Are Imaginary Numbers? Why Do We Need Them?
In order to understand and appreciate the need for imaginary numbers, you should start from the very basics of math,“ the numbers”. Even though this is a high school level topic, we will revisit it as it plays an important role in Fourier transform.
Long back, ... | ['Fourier Transform', 'Time Series Forecasting', 'Mathematics', 'Data Science'] |
Fourier transform is the basis for a lot of Engineering applications ranging from data processing to image processing and many more... Essentially this is a series that ‘I wish I had had access to during my college days’ to learn Fourier transform and its ubiquitous applications. To clearly understand the functioning o... | ['Data Science', 'Fourier Transform', 'Forecasting', 'Time Series Forecasting', 'Python'] |
2. Timeseries prediction with only one variable using LSTM
Stock prices follow a Random walk model. Given the way that the random walk is constructed, we can expect that the best prediction we could make would be to use the observation at the previous time step as what will happen in the next time step.
Let’s first i... | ['Machine Learning', 'Time Series Forecasting', 'Rnn', 'Stock Market'] |
Loading the data
I will be using Pandas through the entire notebook to handle the data and matplotlib for the visualization.
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
Let’s start by loading the data a having a quick look at its shape and first values. Since I already know this is a tim... | ['Data Analysis', 'Data Science', 'Time Series Analysis', 'Time Series Forecasting', 'Python'] |
I developed new algorithm for timeseries forecast. This basically elimination algorithm which finds fittest points for general dataset and final points on data. Then, according to assumption, if last points test data error is low than the best gen is selected for forecasting.
Main Idea
Here is the main idea of algori... | ['AI', 'Artificial Intelligence', 'Machine Learning', 'Genetic Algorithm', 'Time Series Forecasting'] |
This article will be using time series predictive model SARIMAX for Time series prediction using Python. I have used stock price data set for AAPL to demonstrate the implementation, which will use multiple input features for prediction.
For understanding Step by Step Time Series prediction, read this article.
The dat... | ['Sarima', 'Data Science', 'Python', 'Time Series Forecasting', 'Arima'] |
Motivation and use case
This posts aims to provide tips and tricks on how to deploy end-to-end Machine Learning pipeline with Kubeflow on GKE for real time forecasting.
As a matter of example, it is presented the problem to forecast the number of taxi rides at the city of Chicago.
With such a solution, the taxi comp... | ['Kubeflow', 'Kubeflow Pipelines', 'TensorFlow', 'Machine Learning', 'Time Series Forecasting'] |
N-BEATS — Beating Statistical Models with Pure Neural Nets
The M competitions[1] are a prestigious series of forecasting challenges organised to compare and advance forecasting research. In the past, statistical algorithms have always won it. Tried and tested models like ARIMA and Exponential Smoothing produce predict... | ['Finance', 'Deep Learning', 'Bitcoin', 'Machine Learning', 'Time Series Forecasting'] |
In this post I will go over the technical aspects of automatic forecast generation, as well as some of the organizational considerations that will arise when deciding to go with an automatic forecast generating system.
Automated times series forecasting as an exercise in model selection:
As I said earlier, in many fi... | ['Demand Forecasting', 'Data Science', 'Deep Learning', 'Machine Learning', 'Time Series Forecasting'] |
Photo by energepic.com from Pexels
Hierarchical Time Series 101
Imagine that you’re the new VP of supply chain operations at Scoopex Ice Cream Company (congratulations!). Your main responsibility is to ensure that the Scoopex supply chain operates smoothly and efficiently.
To get familiar with your new company, you ... | ['Artificial Intelligence', 'Data Science', 'Forecasting', 'Time Series Forecasting', 'Analytics'] |
An overview of time series forecasting models
Photo by Drew Beamer on Unsplash
What is this article about?
This article provides an overview of the main models available for modelling univariate time series and forecasting their evolution. The models were developed in R and Python. The related code is available here... | ['Data Science', 'Time Series Analysis', 'Machine Learning', 'Time Series Forecasting', 'Statistics'] |
We have already discussed trend, seasonality and cyclical patterns in a previous blog. Any time series can be decomposed into 3 components: trend-cycle, seasonality and residuals. Since it is difficult to estimate trend and cycle components separately, we combine trend and cycle into one trend-cycle component.
We extr... | ['Statsmodels', 'Time Series Analysis', 'Machine Learning', 'Time Series Forecasting', 'Python'] |
Time Series Analysis with Facebook Prophet: How it works and How to use it
An explanation of the math behind facebook profit and how to tune the model using COVID-19 data as an example. Mitchell Krieger Feb 20·9 min read
Photo by Jason Briscoe on Unsplash
Time series data can be difficult and frustrating to work wit... | ['Covid 19', 'Data Science', 'Facebook Prophet', 'Time Series Analysis', 'Time Series Forecasting'] |
5 things that make my job as a Data Scientist easier
After working as a Data Scientist for a year, I am here to share some things I learnt along the way that I feel are helpful and have increased my efficiency. Hopefully some of these tips can help you in your journey :) Shree Vandana Jul 5·6 min read
Photo by Boitum... | ['Data Visualization', 'Data Science', 'Pandas', 'Office Hours', 'Time Series Forecasting'] |
Photo by Brooke Campbell on Unsplash
Introduction to hierarchical time series forecasting — part II
In the first part of this article, I provided an introduction to hierarchical time series forecasting, described different types of hierarchical structures, and went over the most popular approaches to forecasting such... | ['Editors Pick', 'Education', 'Machine Learning', 'Time Series Forecasting', 'Python'] |
Preprocessing
Using Transformers for Time Series Tasks is different than using them for NLP or Computer Vision. We neither tokenize data, nor cut them into 16x16 image chunks. Instead, we follow a more classic / old school way of preparing data for training.
One thing that is definitely true is that we have to feed d... | ['Artificial Intelligence', 'Data Science', 'Deep Learning', 'Machine Learning', 'Time Series Forecasting'] |
Code: https://github.com/nklingen/Transformer-Time-Series-Forecasting
This article will present a Transformer-decoder architecture for forecasting on a humidity time-series data-set provided by Woodsense . This project is a follow-up on a previous project that involved training an LSTM on the same data-set. The LSTM w... | ['Scheduled Sampling', 'Transformers', 'Deep Learning', 'Attention Mechanism', 'Time Series Forecasting'] |
Hello, All. My name is Ranjan. I am a final year CS undergrad and a part-time bug bounty hunter. Due to college, I don’t get enough time for bug bounty hunting. So, I decide to automate some of my tasks, and for that, I was searching for a VPS(Virtual Private Server).
So I found out there is a lot of VPS in the market... | ['Bug Bounty', 'Infosec', 'Security', 'Penetration Testing'] |
Our research has shown that the most prevalent MITRE ATT&CK technique used by adversaries in their malware was T1055 Process Injection. Adversaries emphasize an enhanced level of stealth, persistence, and privilege in their sophisticated cyber attacks. As a mechanism capable of providing these functions, it is not surp... | ['Hacking', 'Infosec', 'Red Team', 'Cybersecurity', 'Mitre Attack'] |
Building Future-Proof Cybersecurity Education Programs with New York University’s Dr. Nasir Memon — AccessCyber
Professor of Computer Science and Engineering, Co-Founder of the NYU Center for Cyber Security, Founder of the Osiris Lab & CSAW; In more ways than one, Dr. Nasir Memon (NYU Tandon) is a pioneer in the field... | ['Tech', 'Hacking', 'Infosec', 'Accesscyber', 'Cybersecurity'] |
Have you ever noticed, when analyzing Base64’d data, that human readable text almost never, ever produces Base64 with `+` or `\`? Oh, you have!? Well, keep reading.
It’s important to understand that each character in a Base64 string is really just a representation of six bits. For a standard B64 alphabet, `A` represen... | ['Security Analysis', 'Infosec', 'Base64'] |
How the simple flaw leads to leakage of all questions on the school examination website. Binamra Pandey Follow Jul 15 · 2 min read
After the Covid blew up, everything has moved online. School started to teach online to its student and even decided to take exams online. My school also decided to take exams online using... | ['Infosec', 'Hacking', 'Vulnerability', 'Flaws', 'Cybersecurity'] |
Data Security and IAM to Optimize your IT Security Sennovate Follow Jul 15 · 2 min read
Yes, it is important and critical to safeguard your IT security. Business assets reside in the form of data and are rendered vulnerable in the event of a breach. Data breaches are happening just like that, and organizations are ren... | ['It', 'Infosec', 'Information Technology', 'Data Security', 'Cybersecurity'] |
Pitfalls
Document your findings as you go!
The best time to capture the information required for a finding report is right when you find it! Some testers prefer to wait until post-engagement to fully document and flesh out their findings, but failing to document when it’s “fresh” can lead to the loss of information (... | ['Infosec', 'Pentest', 'Report Writing', 'Vulnerability', 'Penetration Testing'] |
Task is Enumerate the DC
This task consist of gathering Information about domain controller of target machine. We can start our quest with initial nmap scan to find out what ports/services are open/running on target machine.
Nmap Scan
I ran nmap with flags no ping, service version and TCP scan on target IP address. ... | ['Active Directory', 'Pentesting', 'Infosec', 'Tryhackme'] |
Chrome 80 has been rolled out, and one of the new features of this version is a changed default behaviour with regard to cookies. More specifically, the behaviour regarding the SameSite flag has been changed.
To understand how this could impact you, let’s first discuss what the SameSite flag means.
The scenario
Cons... | ['Dev', 'Infosec', 'Cookies', 'Cybersecurity', 'Chrome'] |
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