Update README.md

README.md

@@ -12,3 +12,7 @@ The model is the "small" version of GPT-2 (12-layer, 768-hidden, 12-heads) with
 ## Training details: 
 It is trained from scratch a generative Transformer model as GPT-2 on a large corpus of Greek text so that the model can generate long stretches of contiguous coherent text. Attention dropouts with a rate of 0.1 are used for regularization on all layers and L2 weight decay of 0,01. In addition, a batch size of 4 and accumulated gradients over 8 iterations are used, resulting in an effective batch size of 32. The model uses the Adam optimization scheme with a learning rate of 1e-4 and is trained for 20 epochs. The learning rate increases linearly from zero over the first 9000 updates and decreases linearly by using a linear schedule. The implementation is based on the open-source PyTorch-transformer library (HuggingFace 2019).
 
+## Cited in: 
+    Alexandridis, G.; Varlamis, I.; Korovesis, K.; Caridakis, G.; Tsantilas, P. (2021). A Survey on Sentiment Analysis and Opinion Mining in Greek Social Media. Information, 12(8), 331. https://doi.org/10.3390/info12080331
+    Aivatoglou, Georgios. (2022). Aspect-Based Sentiment Analysis in Greek Data. MSc Thesis, Aristotle University of Thessaloniki, Faculty of Sciences, School of Informatics, Intelligence Systems Lab. Supervising Professor: Dr. Ioannis Vlahavas. March 2022.
+