Massive automatic comparison of languages in parallel corpora will greatly speed up and enhance the development of a theoretical model of the syntactic properties all languages have in common and... Show moreMassive automatic comparison of languages in parallel corpora will greatly speed up and enhance the development of a theoretical model of the syntactic properties all languages have in common and the range and limits of syntactic variation. When extracting syntactic differences from parallel corpora it is essential only to compare sentence pairs that are sufficiently similar syntactically. We explore four measures to automatically filter out syntactically incomparable sentence pairs: the Damerau-Levenshtein distance between POS- tags, the sentence-length ratio, the graph-edit distance between dependency parses, and a combination of the three in a logistic regression model. For all approaches we experiment with ignoring specific functional material and other parameters. We evaluate the filters on three labelled datasets consisting of sentence pairs that are and that are not syntactically comparable. Results suggest that the dependency-parse filter is the most stable throughout language pairs, while the combination filter achieves the best results. Show less
This paper provides evidence for a kind of nominal licensing (Vergnaud licensing) in a number of morphologically caseless languages. Recent work on Bantu languages has suggested that abstract Case... Show moreThis paper provides evidence for a kind of nominal licensing (Vergnaud licensing) in a number of morphologically caseless languages. Recent work on Bantu languages has suggested that abstract Case or nominal licensing should be parameterised (Diercks 2012, Van der Wal 2015a). With this is mind, we critically discuss the status of Vergnaud licensing in six languages lacking morphological case. While Luganda appears to systematically lack a Vergnaud licensing requirement, Makhuwa more consistently displays evidence in favour of it, as do all of the analytic languages that we survey (Mandarin, Yoruba, Jamaican Creole and Thai). We conclude that, while it seems increasingly problematic to characterise nominal licensing in terms of uninterpretable/abstract Case features, we nonetheless need to retain a (possibly universal) notion of nominal licensing, the explanation for which remains opaque. Show less
