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  • CLT seminar: Jörg Tiedemann – Languages are Dialects with a PoS-Tagger and a Dependency Parser - Experiments with Cross-Lingual Parsing and Annotation Projection

CLT seminar: Jörg Tiedemann – Languages are Dialects with a PoS-Tagger and a Dependency Parser - Experiments with Cross-Lingual Parsing and Annotation Projection

SEMINAR

Natural language processing (NLP) becomes increasingly important in people's everyday life if we look, for example, at the success of word prediction, spelling correction and instant on-line translation. Building linguistic resources and tools, however, is expensive and time-consuming, and one of the great challenges in computational linguistics is to port existing models to new languages and domains. Modern NLP requires data, often annotated with explicit linguistic information and tools that can learn from it. However, sufficient quantities of electronic data sources are available only for a handful of languages whereas most other languages do not have the privilege to draw from such resources. Speakers of low density languages and the countries they live in are not able to invest in large data collection and time-consuming annotation efforts, and the goal of cross-lingual NLP is to share the rich linguistic information with poorly supported languages making it possible to build tools and resources without starting from scratch. In this talk I will look in particular at transfer models for statistical dependency parsing. In my experiments I test these approaches on the recently released data sets with cross-lingually harmonized dependency annotation and I will show the potentials of simple yet effective annotation and treebank translation techniques. I will also include a discussion on shortcomings and problems of these models and welcome suggestions for future work.

Date: 2015-05-28 10:30 - 12:00

Location: L308, Lennart Torstenssonsgatan 8

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Page updated: 2015-05-18 21:19

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