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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Semantic reranking of CRF label sequences for verbal multiword expression identification ; Multiword expressions at length and in depth: Extended papers from the MWE 2017 workshop Maldonado Guerra, Alfredo; Moreau, Erwan; Vogel, Carl; Alsulaimani, Ashjan; Han, Lifeng; Chowdhury, Koel Dutta. - : Language Science Press, 2018 Abstract: PUBLISHED ; Verbal multiword Expressions (VMWE) identification can be addressed successfully as a sequence labelling problem via conditional random fields (CRFs) by returning the one label sequence with maximal probability. This work describes a system that reranks the top 10 most likely CRF candidate VMWE sequences using a decision tree regression model. The reranker aims to operationalise the intuition that a non-compositional MWE can have a different distributional behaviour than that of its constituent words. This is why it uses semantic features based on comparing the context vector of a candidate expression against those of its constituent words. However, not all VMWE are non-compostional, and analysis shows that non-semantic features also play an important role in the behaviour of the reranker. In fact, the analysis shows that the combination of the sequential approach of the CRF component with the context-based approach of the reranker is the main factor of improvement: our reranker achieves a 12% macro-average F1-score improvement on the basic CRF method, as measured using data from PARSEME shared task on VMWE identification. Keyword: ARTIFICIAL INTELLIGENCE; Computational Linguistics; Conditional random fields; DATA ANALYSIS; Digital Engagement; Digital Humanities; MACHINE LEARNING; multi-word expressions; Natural language processing; text analytics; Verbal multiword Expressions URL: http://langsci-press.org/catalog/view/204/1647/1302-1 https://doi.org/10.5281/zenodo.1469559 http://people.tcd.ie/vogel http://hdl.handle.net/2262/91208 http://people.tcd.ie/maldona http://people.tcd.ie/moreaue BASE Hide details

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