ABL: Alignment-Based Learning

dc.creatorvan Zaanen, Menno
dc.date2001-04-03
dc.date.accessioned2026-07-25T23:57:39Z
dc.descriptionThis paper introduces a new type of grammar learning algorithm, inspired by string edit distance (Wagner and Fischer, 1974). The algorithm takes a corpus of flat sentences as input and returns a corpus of labelled, bracketed sentences. The method works on pairs of unstructured sentences that have one or more words in common. When two sentences are divided into parts that are the same in both sentences and parts that are different, this information is used to find parts that are interchangeable. These parts are taken as possible constituents of the same type. After this alignment learning step, the selection learning step selects the most probable constituents from all possible constituents. This method was used to bootstrap structure on the ATIS corpus (Marcus et al., 1993) and on the OVIS (Openbaar Vervoer Informatie Systeem (OVIS) stands for Public Transport Information System.) corpus (Bonnema et al., 1997). While the results are encouraging (we obtained up to 89.25 % non-crossing brackets precision), this paper will point out some of the shortcomings of our approach and will suggest possible solutions.
dc.description7 pages
dc.identifierhttps://arxiv.org/abs/cs/0104006
dc.identifierhttp://arxiv.org/abs/cs/0104006
dc.identifierProceedings of the 18th International Conference on Computational Linguistics (COLING); Saarbrucken, Germany. pages 961-967
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/102895
dc.subjectMachine Learning
dc.subjectComputation and Language
dc.subjectI.2; I.2.6; I.2.7
dc.titleABL: Alignment-Based Learning
dc.typetext

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