Frameworks tremendously simplify web application development. Fundamental architectures, predefined paradigms, and integrated libraries create the perfect platform on which your planned app can be built. One name that’s often mentioned hand-in-hand with web applications frameworks is Ruby on Rails. Based on the script language Ruby, this web framework has attracted many fans through its clean, and...
If large amounts of data have to be indexed and structured, the license-free engine, Elasticsearch, is a popular solution. The Kibana web interface is often used to present the processed data in an appealing form. Together with Elasticsearch and Logstash, this forms the so-called ELK stack. In our Kibana tutorial, we explain step by step how to get the server application Kibana up and running and...
So you think Alexa can do a lot? Well, it’s now possible to add even more capabilities to the smart Amazon Echo speaker. If you network it with external providers, you can extend the pre-configured functions with different applications. With Amazon Alexa Skills, Alexa becomes a personal assistant who can coordinate your everyday life, if you want it to. But not all of the 10,000 additional...
Many people use several devices and have data stored on them. What should you do if your data carrier fails or the data gets lost? Backing up data is extremely important and an online backup makes perfect sense. By doing this, you don’t risk losing your important files due to a system crash or criminal activitiy. What is the best option? Here is a comparison of online backup service providers.
In-memory databases enable big data to be analyzed and made available in real time. The quick access speeds are made possible by storing the data on the working memory – hence the name in-memory database. Traditional databases, on the other hand, are based on the method of storing data on the hard disk. How do in-memory databases differ from traditional database systems? And what are the go-to...
Process mining applications provide methods with which you can reconstruct and visualize processes using event data. The goal is to prepare implicit process knowledge in such a way that you make it available to employees and applications as explicit knowledge. Read how this works and what advantages and disadvantages are associated with it.
In the digital age, it’s normal for data from small and medium-sized companies to grow to unmanageable amounts. Data mining tools are used to extract desired information from data sets. These extract recurring patterns from the data and make them available to marketers and statisticians. We have compared the most important data mining software and show where their strengths and weaknesses lie.
When we shop online, book vacations, and search for gift ideas, we hardly give a second thought to the fact that each search entry leaves behind a trail of our identity. Busy web bots are never far behind and sweep up this information. The result of all of this is Big Data: massive volumes of data that are analyzed and used for a variety of reasons. But is there reason to be wary of leaving behind...
Some cookies can be very helpful – they let you sleep on those impulse purchases and keep them from disappearing out of your shopping cart, or log into social media sites with just one click. But not all cookies make surfing the web easier, and some may even forward unwanted information to third parties. It is a good idea to learn how to clear cookies, and this guide will show you how to clear...
As Android smartphone users will know, a complete backup of the operating system can only be created with the internal backup function that leaves a lot to be desired. The solution? Using a cloud storage solution like Google Drive. However, if you don’t feel comfortable handing all your data over to Google, you will have to search for another online Android storage option to back-up your personal...
