Articles by Florian Teschner

Transfer Learning with Keras in R

August 1, 2017 | Florian Teschner

In my last posts ([here]( and here, I described how one can detect logos in images with R. The first results were promising and achieved a classification accuracy of ~50%. In this post i will detail h... [Read more...]

How to Scrape Images from Google

July 9, 2017 | Florian Teschner

In my last post, I tried to train a deep neural net to detect brand logos in images. For that, I downloaded the Flickr27-dataset, containing 270 images of 27 different brands. As this dataset is rather small I turned to google image search and wrote a... [Read more...]

Deep Learning for Brand Logo Detection

June 19, 2017 | Florian Teschner

A year ago, I used Google’s Vision API to detect brand logos in images. Since then the DIY deep learning possibilities in R have vastly improved. With the release of Keras for R, one of the key deep learning frameworks is now available at your R fin... [Read more...]

Extending existing packages: Rmisc

April 10, 2017 | Florian Teschner

One of my favorite packages is Rmisc. The package includes the summarySE function which I use on a daily basis. The function provides a concise way to get a data frame with mean and standard errors of the mean. It is a great way in conjunction with ggp... [Read more...]
1 2

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)