1. Agirre, E., et al.: Semeval-2012 task 6: a pilot on semantic textual similarity. In: Proceedings of the 6th International Workshop on Semantic Evaluation, in conjunction with the First Joint Conference on Lexical and Computational Semantics, pp. 385–393 (2012)
2. Bannard, C., Callison-Burch, C.: Paraphrasing with bilingual parallel corpora. In: Proceedings of the 43th Annual Meeting on Association for Computational Linguistics, pp. 597–604 (2005)
3. Bird, S., et al.: Natural Language Processing with Python. O’Reilly Media Inc., Newton (2009)
4. Blacoe, W., Lapata, M.: A comparison of vector-based representations for semantic composition. In: Proceedings of the 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL 2012), pp. 546–556 (2012)
5. Callison-Burch, C. et al.: Improved statistical machine translation using paraphrases. In: Proceedings of the main conference on Human Language Technology Conference of the North American Chapter of the Association of Computational Linguistics (HLT-NAACL 2006), pp. 17–24 (2006)