Seguimos comprometidos com a pesquisa com o intuito de aprimorar as tecnologias linguísticas

A Prompsit se orgulha de continuar participando ativamente em pesquisas
realizadas nas nossas principais áreas de especialização

Mostra 11-20 de 64 publicações (página 2 de 7)

2011

Apertium: a free/open-source platform for rule-based machine translation

Mikel L Forcada, Mireia Ginestí-Rosell, Jacob Nordfalk
+6 more Jim O’Regan, Sergio Ortiz-Rojas, Juan Antonio Pérez-Ortiz, Felipe Sánchez-Martínez, Gema Ramírez-Sánchez, Francis M Tyers
Apertium is a free/open-source platform for rule-based machine translation. It is being widely used to build machine translation systems for a variety of language pairs, especially in those cases (mai...
nly with related-language pairs) where shallow transfer suffices to produce good quality translations, although it has also proven useful in assimilation scenarios with more distant pairs involved. This article summarises the Apertium platform: the translation engine, the encoding of linguistic data, and the tools developed around the platform. The present limitations of the platform and the challenges posed for the coming years are also discussed. Finally, evaluation results for some of the most active language pairs are presented. An appendix describes Apertium as a free/open-source project.Read more
2019

ParaCrawl: Web-scale parallel corpora for the languages of the EU

Miquel Esplà-Gomis, Mikel L Forcada, Gema Ramírez‐Sánchez
+1 more Hieu Hoang
We describe two projects funded by the Connecting Europe Facility, Provision of Web-Scale Parallel Corpora for Official European Languages (2016-EU-IA-0114, completed) and Broader Web-Scale Provision ...
of Parallel Corpora for European Languages (2017-EU-IA-0178, ongoing), which aim at harvesting parallel corpora from the Internet for languages used in the European Union. In addition to parallel corpora, the project releases successive versions of the free/open-source web crawling software used.Read more
2006

Open-source Portuguese–Spanish machine translation

Carme Armentano-Oller, Rafael C Carrasco, Antonio M Corbí-Bellot
+7 more Mikel L Forcada, Mireia Ginestí-Rosell, Sergio Ortiz-Rojas, Juan Antonio Pérez-Ortiz, Gema Ramírez-Sánchez, Felipe Sánchez-Martínez, Miriam A Scalco
This paper describes the current status of development of an open-source shallow-transfer machine translation (MT) system for the [European] Portuguese Spanish language pair, developed using the OpenT...
rad Apertium MT toolbox (www.apertium.org). Apertium uses finite-state transducers for lexical processing, hidden Markov models for part-of-speech tagging, and finite-state-based chunking for structural transfer, and is based on a simple rationale: to produce fast, reasonably intelligible and easily correctable translations between related languages, it suffices to use a MT strategy which uses shallow parsing techniques to refine word-for-word MT. This paper briefly describes the MT engine, the formats it uses for linguistic data, and the compilers that convert these data into an efficient format used by the engine, and then goes on to describe in more detail the pilot PortugueseSpanish linguistic data.Read more
2018

Prompsit’s submission to wmt 2018 parallel corpus filtering shared task

Víctor M Sánchez-Cartagena, Marta Bañón, Sergio Ortiz-Rojas
+1 more Gema Ramírez‐Sánchez
This paper describes Prompsit Language Engineering’s submissions to the WMT 2018 parallel corpus filtering shared task. Our four submissions were based on an automatic classifier for identifying pairs...
of sentences that are mutual translations. A set of hand-crafted hard rules for discarding sentences with evident flaws were applied before the classifier. We explored different strategies for achieving a training corpus with diverse vocabulary and fluent sentences: language model scoring, an active-learning-inspired data selection algorithm and n-gram saturation. Our submissions were very competitive in comparison with other participants on the 100 million word training corpus.Read more
2018

The Apertium machine translation platform: five years on

Mikel L Forcada, Francis Tyers, Gema Ramírez‐Sánchez
This paper describes Apertium: a free/open-source machine translation platform (engine, toolbox and data), its history, its philosophy of design, its technology, the community of developers, the resea...
rch and business based on it, and its prospects and challenges, now that it is five years old.Read more
2007

Documentation of the open-source shallow-transfer machine translation platform Apertium

Mikel L Forcada, Boyan Ivanov Bonev, S Ortiz Rojas
+6 more JA Pérez Ortiz, G Ramírez Sánchez, F Sánchez Martínez, Carme Armentano-Oller, Marco A Montava, Francis M Tyers
This documentation describes the Apertium platform, one of the opensource machine translation systems which originated within the project” Open-Source Machine Translation for the Languages of Spain”(”...
Traducci ón automática de código abierto para las lenguas del estado espanol”). It is a shallow-transfer machine translation system, initially designed for the translation between related language pairs, although some of its components have been also used in the deep-transfer architecture (Matxin) that has been developed in the same project for the pair Spanish-Basque. Apertium can translate at present between the pairs Spanish-Galician, Spanish–Catalan1 Catalan-Occitan, Catalan-French, and can be used to build translators between other related language pairs, such as Danish-Swedish, Czech–Slovak, etc. Existing machine translation systems available at present for the pairs es–ca and es–gl are mostly commercial or use proprietary technologies, which makes them very hard to adapt to new usages; furthermore, they use different technologies across language pairs, which makes it very difficult to integrate them in a single multilingual content management system.Read more
2006

Opentrad Apertium open-source machine translation system: an opportunity for business and research

Gema Ramírez Sánchez, Felipe Sánchez-Martínez, Sergio Ortiz Rojas
+2 more Juan Antonio Pérez-Ortiz, Mikel L Forcada
Most successful machine translation systems built until now use proprietary software and data, and are either distributed as commercial products or are accessible on the net with some restrictions. Th...
is kind of machine translation systems are regarded by most professional translators and researchers as closed and static products which cannot be adapted or enhanced for a particular purpose. In contrast to these systems, we present Opentrad Apertium, an open-source shallow-transfer machine translation engine originally intended for related-language pairs but currently being extended to deal with not so similar pairs. The opportunities offered by open-source software are very interesting in new research projects but they are also promising in business and particularly as a business model for innovative companies. Questions like which is the most suitable license to release open-source software, or how to make it visible are discussed in this paper. Real opportunities for research and business derived from the Apertium machine translation system are presented as well.Read more
2006

Construcción y minimización eficiente de transductores de letras a partir de diccionarios con paradigmas

Sergio Ortiz Rojas, Mikel L Forcada, Gema Ramírez Sánchez
En este artículo se presenta un modelo de gestión de diccionarios basado en paradigmas para construir procesadores léxicos. Para ello, primero se muestran algunos ejemplos que permiten poner de manifi...
esto la potencia expresiva del modelo presentado y el amplio abanico de lenguas al que se puede aplicar este sistema. A continuación se explica un método para construir eficientemente transductores de letras a partir de los diccionarios aprovechando el uso de paradigmas. Finalmente se presentan los resultados que se han obtenido con el sistema implementado.Read more
2007

Apertium, una plataforma de código abierto para el desarrollo de sistemas de traducción automática

Carme Armentano Oller, Antonio Miguel Corbí Bellot, Mikel L Forcada
+6 more Mireia Ginestí Rosell, Marco A Montava Belda, Sergio Ortiz Rojas, Juan Antonio Pérez-Ortiz, Gema Ramírez Sánchez, Felipe Sánchez-Martínez
Uno de los principales retos de la informática para las próximas décadas es el desarrollo de sistemas capaces de procesar eficazmente el lenguaje natural (o lenguaje humano). Dentro de este campo, los...
sistemas de traducción automática, encargados de traducir un texto escrito en un idioma a una versión equivalente en otro idioma, reciben especial atención dado, por ejemplo, el carácter multilingüe de sociedades como la europea. La automatización de dicho proceso es particularmente compleja porque los programas han de enfrentarse a características del lenguaje natural, como la ambigüedad, cuyo tratamiento algorítmico no es factible, de modo que una mera aproximación o automatización parcial del proceso ya se considera un éxito. Los programas de traducción automática han sido tradicionalmente sistemas cerrados, pero en los últimos tiempos la tendencia marcada por el software libre ha llegado también a este campo. En este artículo describimos Apertium, apertium.org, una plataforma avanzada de código abierto, con licencia GNU GPL, que, gracias al desacoplamiento que ofrece entre datos y programas permite desarrollar cómodamente nuevos traductores automáticos. La plataforma Apertium ha sido desarrollada por el grupo de investigación Transducens de la Universitat d’Alacant en el marco de varios proyectos de colaboración con universidades y empresas de España en los que, además de los programas que conforman el motor de traducción, se han confeccionado datos lingüísticos abiertos para la traducción automática catalán–español, gallego–español, portugués–español, francés–catalán, inglés–catalán y …Read more
2009

Development of a free Basque to Spanish machine translation system

Mireia Ginestí-Rosell, Gema Ramírez-Sánchez, Sergio Ortiz-Rojas
+2 more Francis M Tyers, Mikel L Forcada
This paper presents a free (or open-source) rule-based machine translation system between Basque and Spanish, based on the Apertium machine translation platform aimed at assimilation, that is, as a he...
lp for the understanding of texts written in Basque. The development process and current status are described and an evaluation is given of the utility of the output.Read more