A former WU-member, Michael Hahsler, created a really nice package called recommenderlab, which allows you to build collaborative filtering systems.

Wrangling data can be a real pain, especially if you work with unstructured or semi-structured data. I had to convert a JSON object into an dataframe in R, which should be easy using jsonlite, but it was not - So I used tidyjson and I really like it.

PiewDiePie announced to make a YouTube pause just a few moments ago, but he is still one of the best known human brands on YouTube. I tried to visualise the sentiment development of his video comments.

Apache Drill is a really easy to use dremel-based big-data analysis tool. So it's perfect if you have a lot of static data (read-only workloads) and want to use SQL. And the best of all: it does not require Hadoop/HDFS :)