It has been a while since I released the initial version of Recommendation Assistant, my Master’s Thesis in coorperatin with Nextcloud GmbH and Frankfurt University of Applied Sciences. Today, I am happy to announce version 1.0.0. What has been changed? Most of the work is on how recommendations are being calculated. Earlier this year, I … read more …
The last few weeks, I was focused on algorithms and data structures. I have been working my way through “Cracking The Coding Interview” and created a PHP library based on this book. I splitted interesting topics, such as dependency resolving using topological sorting, out into separate projects and released them under the MIT lincese on … read more …
In past projects at my former employer, I had to deal with a lot of historical grown (duplicated) code and databases. Some source code files contained of nearly 2,000 lines of code and contained a lot of duplicated stuff. The databases were in a similar situation. Much worse in this scenario was the violation of … read more …
The last few days I had a little bit more time to dive into theory. I was wondering how to effectively search single values in unsorted, large amounts of data (e.g. files larger than 1GB) and ended up with Integer Bitvectors. There are two key problems in such an issue: the data is unsorted, meaning … read more …
Earlier this year, I announced my Master’s Thesis in Recommendation Systems and Nextcloud, an open source file sync and share software. Since then, things have changed a little bit – namely: RecommendationAssistant is on the Nextcloud App Store now! RecommendationAssistant was designed to work with two recommendation techniques: Collaborative Filtering and Content-Based Recommendation. Unfortunately, the … read more …
Do you know the situation where you want to test a little change of a pre-tested code “on the fly” and recognize that it does not work any more? I had this situation several times. Therefore, I decided to create a “flood style” blog post where I want to summarize those moments. This “flood type” … read more …
Didapptic.com is a research based web application that measures Android and iOS Apps from a didactic point of view. Actually, we work on a new release in order to provide a fresh layout and smarter handling of app data. Among other things, the new release introduces also a new user management handling which allows and/or permits … read more …
I was working on PHPAlgorithms (again). When trying to implement Graphs (Directed and Undirected), I found out that a node could not be found in the graph although I was sure it was there. After a lot of debugging and reverse engineering, I found out that it is related to how PHP is Comparing Objects: … read more …
Frankfurt, May 2018 – Today, the first BETA version of PHPAlgorithms is launched! The repository is available via GitHub and Packagist. Originally launched as a research project, PHPAlgorithms provides currently a basic set of data structures. The repository has been designed to provide simple usage of common data structures such as lists, maps and trees. … read more …
This is a great day. Over the last approximately 7 months I have worked hard on my Master’s Thesis in Recommendation Systems. The goal was to contribute to the community by creating an open source app for an open source platform. And thus, I started to work on a Recommender App at the company behind … read more …