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Regression Today, I played a bit with the International airline passengers dataset. It's only feature is a date given by year and month. One should predict the number of passengers (in thousands). Code See Github. Scoring functions In the following, \(y\) is the ordered list of target, \(y^P\) is the …if (!document.getElementById('mathjaxscript_pelican_#%@#[email protected]#')) { var align = "center", indent = "0em", linebreak = "false"; if (false) { align = (screen.width Read More »

Prague Prague is the capital of the Czech Republic. Getting there I chose to get to Prague by bus as it's only about 390km by car / bus. I recommend to have a look at busliniensuche.de to find a good bus, although the market is dominated by Flixbus. Getting to Prague … Read More »

Comparing Cameras I have a Panasonic Lumix DMC-TZ40. It's about 3 years old and I'm thinking about getting a new one. I have the impression that my camera takes quite often unsharp images. What is important to me Sharp images Not too bulky - it should fit in the side bag of my … Read More »

Pandas: Merge, join, concatenate I always get confused about the different methods how to join Pandas dataframes. So here are some examples that should make it crystal clear. First, we create two dataframes: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 … Read More »

API Design Today, I gave API design a little bit of thought. Web APIs to be more specific. So here are some good practices I've seen. Feel free to add more in the comments 😊 General Thoughts An API is written because you want to make a public interface to your application. You … Read More »

German Language German is one of the many languages spoken in Europe. I've been told that it also is a quite difficult one. In this this article I would like to share some funny or interesting facts about German with you. Script I recently published a paper about language identification. For this … Read More »

Online Banking Online banking is something I have to do. I have to have a bank account for my salary, to pay my rent and to pay Amazon orders. Once in a year I need the documents for my tax declaration. I will expand this article when you add comments / screenshots for … Read More »

Bala Bala Bala Bala is an Indonesian dish. It can be eaten alone, with rice or with Sambel goang. Bala bala with rice and Sambel goang This takes approximately 45 minutes. Ingredients For 4 people, you need: 400g Wheat Flour (e.g. Type 405) Thai Spices (e.g. "Rosdee" Food Seasoning with … Read More »

Datetime Specifying a point in time is a pretty common task. And it is extraordinary difficult. Lets have a look at the different ways to specify a point in time. Imagine the following scenario: We record some events, e.g. actions of a credit card user. In case of potential fraud … Read More »

Python Projects I recently thought a bit about what makes software good. Not from a functional perspective, but from a developers perspective. As I did quite some work with data science, machine learning and Python my view is a bit biased. Having said that, here is my personal "best practices" guide. Naming … Read More »