Find and download the training sets for the encoder-decoder sentence simplification model

[wammar]

Probably with ParaPhrase DataBase(http://paraphrase.org/#/download) and with Aligned pairs between the Simple English Wikipedia entries and their corresponding English Wikipedia entries

Kauchak, D.: Improving text simplification language modeling using unsimplified text data. In: 51st Annual Meeting of the Association for Computational Linguistics, Vol. 1: Long papers, pp. 1537–1546. ACl, Sofia, Bulgaria (2013)

Ganitkevitch, J., Van Durme, B., Callison-Burch, C.: PPDB: the paraphrase database. In: Proceedings of the 2013 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pp. 758–764 (2013)

[wammar]

After discussing alternative approaches in the design doc, we decided to archive this task.