Mika Hämäläinen author Niko Partanen author Khalid Alnajjar author 2021-06 text Pascal Denis editor Natalia Grabar editor Amel Fraisse editor Rémi Cardon editor Bernard Jacquemin editor Eric Kergosien editor Antonio Balvet editor ATALA Lille, France conference publication hamalainen-etal-2021-lemmatization https://aclanthology.org/2021.jeptalnrecital-taln.18/ 2021-6 189 198