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Snyder, Benjamin; Barzilay, Regina (2007). „Multiple Aspect Ranking using the Good Grief Algorithm”. Proceedings of the Joint Human Language Technology/North American Chapter of the ACL Conference (HLT-NAACL). стр. 300—307. Архивирано из оригинала 6. 8. 2016. г. Приступљено 16. 6. 2009.CS1 одржавање: Формат датума (веза)
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web.archive.org
Snyder, Benjamin; Barzilay, Regina (2007). „Multiple Aspect Ranking using the Good Grief Algorithm”. Proceedings of the Joint Human Language Technology/North American Chapter of the ACL Conference (HLT-NAACL). стр. 300—307. Архивирано из оригинала 6. 8. 2016. г. Приступљено 16. 6. 2009.CS1 одржавање: Формат датума (веза)
Koppel, Moshe; Schler, Jonathan (2006). „The Importance of Neutral Examples for Learning Sentiment”. Computational Intelligence 22. стр. 100—109. CiteSeerX10.1.1.84.9735.