Lemmatization has previously been shown to improve recall for information retrieval (Kanis and Skorkovská, 2010;Monz and De Rijke, 2001), to aid machine translation (Fraser et al., 2012;Chahuneau et al., 2013) and is a core part of modern parsing systems (Björkelund et al., 2010;Zeman et al., 2018).
the task is quite nuanced as the proper choice of the lemma is context dependent.