IT Sky Consulting GmbH
In March 2019 I have visited ScalaUA in Kiev. It was interesting. I attended the following talks: Thinking Functionally by John A. De Goes Streaming data processing with Apache Spark by Roksolana Diachuk Theory of Constraints in Programming: Beyond Problem-Solving by Anatolii Kmetiuk Video Q&A session with Martin Odersky by Martin Odersky and Jon Pretty …
According to some the RFC1, which was published on 1969-04-07, was the start of the internet. Many RFCs have since this time been published and they describe the standards of the internet. The early internet did contain functionality to communicate between computers, but it did of course not include http, html and the WWW, which …
„50 years of internet“ weiterlesen
I have converted my company site www.it-sky-consulting.com to always use https. This is something all sites should do in the next few months.
I got a few emails, that looked like this (see at the button). I replaced all references to myself with xxxx. The source of the email indicates, that a mailserver „nmail.brlp.in“ has been used for this. The fact, that the email seems to come from my own mail address is not a proof that this …
„Weird blackmailing via email from „Hacker““ weiterlesen
New research has analyzed the concept of transactions from a very theoretical point of view. An interesting result of this research was the concept of cisactions, which are in some way the opposite of transactions. A duality between cisactions and transactions has been proven. This means that in principal every application that is based on …
It is a common practice in C to use arrays of char as strings. The 0 is used as end marker. The whole thing was created like that in the 1970s and at that time it was kind of cool to get away with one less language feature and to express it in terms of …
The European Parliament is considering to pass an article 13 that would interfer with the internet usage and freedom of speech in the internet under the pretence of enforcing copyright violations. It is important to resist. Links wired online-petition save the internet open letter How the German EU parliament member intend to vote (Twitter) NZZ …
There is now also an implementation of Flashsort in Scala. In order to solve the requirement of sorting part of an array that is needed as part of flashsort, an heapsort implementation in Scala that can be constrained to a part of an array has been included as well. Heapsort was chosen, because it can …
„Flashsort in Scala“ weiterlesen
Deutsch There is a simple implementation of Flashsort in Ruby, after having already provided an implementation in C. The C-implementation is typically faster than the libc-function qsort, but this depends always on the data and on how well the metric-function has been written, that is needed on top of the comparison function for Flashsort. You …
„Flashsort in Ruby“ weiterlesen
This is another story of a project, that did not go as well as it could have gone while I was there. From unsuccessful projects we can learn a lot, so there will be stories like this once in a while. The first one was about Tom Rocket. Tim Finnerty It was the time, when …
„Not all projects are on ideal paths II (Tim Finnerty)“ weiterlesen