A Twitter corpus and benchmark resources for german sentiment analysis

In this paper we present SB10k, a newcorpus for sentiment analysis with approx.10,000 German tweets.We use this new corpus and two existingcorpora to provide state-of-the-art bench-marks for sentiment analysis in German:we implemented a CNN (based on thewinning system of SemEval-2016) anda feature-based SVM and compare theirperformance on all three corpora.For the CNN, we also created Germanword embeddings trained on 300Mtweets. These word embeddings werethen optimized for sentiment analysisusing distant-supervised learning.The new corpus, the German wordembeddings (plain and optimized), andsource code to re-run the benchmarks arepublicly available