What is machine learning? How machines learn to think

Self-learning systems: how does machine learning work?

Artificial intelligence has fascinated us for centuries: Countless books and films about robots and computers that behave like (or not like) humans testify to both the enthusiasm and concern we have for artificial intelligence. But how do machines get so smart? We explain how machine learning works, where it is already being used, and how self-learning systems can revolutionise the world of...

Attribution models in online marketing

Attribution models

Any marketer will tell you that getting your marketing strategy right is the most important thing for businesses online. To reach your potential target group as effectively as possible, it makes sense to have an ideal mix of different advertising channels. But how do you know that you’re spending your marketing budget in the right areas? Which ad channel is the best one for you to invest in? This...

WDF*IDF: The Formula for better Content

WDF*IDF: What can the SEO miracle formula really do?

One of the most important tasks when it comes to designing your own website is creating and publishing high-quality texts. They shouldn’t just be highly relevant and readable, they should be optimized for search engines to rank highly as well. While the days of using keyword density as a quick path to success are over, semantic analysis methods like WDF*IDF are becoming more and more important to...

Buyer personas for optimal targeting

Buyer personas: Getting to know your customers better

When it comes to online marketing, data is what counts most today. But what good is the information you have collected and analysed if you address indefinite groups of people in your messages? It is better to identify the people behind the data set and focus on them. Creating concrete buyer personas helps to better align marketing measures with the target group.

What is Big Data?

Big Data: definition and examples

When we shop online, book holidays, 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 is analysed and used for a variety of reasons. But is there reason to be wary of leaving behind...

Kibana tutorial

Kibana dashboard tutorial for beginners

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...

Excel Pivot Tables

Pivot tables: using Excel to its fullest

Excel pivot tables can considerably ease the evaluation of data. Data analysis can be especially time-consuming and tedious with complex numerical series, but with Excel pivot, this doesn’t have to be the case. Simply place your data in the right context and filter the essential information in just a few clicks. The pivot table allows you to create expressive diagrams in no time. Find out all you...

Excel shortcuts

30 Excel shortcuts to speed up your work

Excel shortcuts enable you to carry out your work a lot faster, but you first have to learn them. We present you with 30 useful Excel key combinations that faciliate your daily work. From navigation, to inserting cells, to calculating totals. If there isn’t already a shortcut for a function you regularly use, you can easily create your own Excel shortcuts.

Best bill splitting apps

Splitting the bill: the best apps for sharing the cost

Whether it’s splitting the bill at the restaurant, keeping track of a household budget, or keeping a tab on holiday with friends: bill splitting apps help you share costs, calculate expenses, manage invoices, and pay off debts. They can also help facilitate financial cooperation. In the meantime, there are a number of tools that you can install for free. Here is a guide to the best apps for...


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