Brian Ore


2020

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The AFRL IWSLT 2020 Systems: Work-From-Home Edition
Brian Ore | Eric Hansen | Tim Anderson | Jeremy Gwinnup
Proceedings of the 17th International Conference on Spoken Language Translation

This report summarizes the Air Force Research Laboratory (AFRL) submission to the offline spoken language translation (SLT) task as part of the IWSLT 2020 evaluation campaign. As in previous years, we chose to adopt the cascade approach of using separate systems to perform speech activity detection, automatic speech recognition, sentence segmentation, and machine translation. All systems were neural based, including a fully-connected neural network for speech activity detection, a Kaldi factorized time delay neural network with recurrent neural network (RNN) language model rescoring for speech recognition, a bidirectional RNN with attention mechanism for sentence segmentation, and transformer networks trained with OpenNMT and Marian for machine translation. Our primary submission yielded BLEU scores of 21.28 on tst2019 and 23.33 on tst2020.

2018

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The AFRL IWSLT 2018 Systems: What Worked, What Didn’t
Brian Ore | Eric Hansen | Katherine Young | Grant Erdmann | Jeremy Gwinnup
Proceedings of the 15th International Conference on Spoken Language Translation

This report summarizes the Air Force Research Laboratory (AFRL) machine translation (MT) and automatic speech recognition (ASR) systems submitted to the spoken language translation (SLT) and low-resource MT tasks as part of the IWSLT18 evaluation campaign.

2016

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The MITLL-AFRL IWSLT 2016 Systems
Michaeel Kazi | Elizabeth Salesky | Brian Thompson | Jonathan Taylor | Jeremy Gwinnup | Timothy Anderson | Grant Erdmann | Eric Hansen | Brian Ore | Katherine Young | Michael Hutt
Proceedings of the 13th International Conference on Spoken Language Translation

This report summarizes the MITLL-AFRL MT and ASR systems and the experiments run during the 2016 IWSLT evaluation campaign. Building on lessons learned from previous years’ results, we refine our ASR systems and examine the explosion of neural machine translation systems and techniques developed in the past year. We experiment with a variety of phrase-based, hierarchical and neural-network approaches in machine translation and utilize system combination to create a composite system with the best characteristics of all attempted MT approaches.

2015

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The MITLL-AFRL IWSLT 2015 MT system
Michaeel Kazi | Brian Thompson | Elizabeth Salesky | Timothy Anderson | Grant Erdmann | Eric Hansen | Brian Ore | Katherine Young | Jeremy Gwinnup | Michael Hutt | Christina May
Proceedings of the 12th International Workshop on Spoken Language Translation: Evaluation Campaign

2014

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The MITLL-AFRL IWSLT 2014 MT system
Michaeel Kazi | Elizabeth Salesky | Brian Thompson | Jessica Ray | Michael Coury | Tim Anderson | Grant Erdmann | Jeremy Gwinnup | Katherine Young | Brian Ore | Michael Hutt
Proceedings of the 11th International Workshop on Spoken Language Translation: Evaluation Campaign

This report summarizes the MITLL-AFRL MT and ASR systems and the experiments run using them during the 2014 IWSLT evaluation campaign. Our MT system is much improved over last year, owing to integration of techniques such as PRO and DREM optimization, factored language models, neural network joint model rescoring, multiple phrase tables, and development set creation. We focused our eforts this year on the tasks of translating from Arabic, Russian, Chinese, and Farsi into English, as well as translating from English to French. ASR performance also improved, partly due to increased eforts with deep neural networks for hybrid and tandem systems. Work focused on both the English and Italian ASR tasks.

2013

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The MIT-LL/AFRL IWSLT-2013 MT system
Michaeel Kazi | Michael Coury | Elizabeth Salesky | Jessica Ray | Wade Shen | Terry Gleason | Tim Anderson | Grant Erdmann | Lane Schwartz | Brian Ore | Raymond Slyh | Jeremy Gwinnup | Katherine Young | Michael Hutt
Proceedings of the 10th International Workshop on Spoken Language Translation: Evaluation Campaign

This paper describes the MIT-LL/AFRL statistical MT system and the improvements that were developed during the IWSLT 2013 evaluation campaign [1]. As part of these efforts, we experimented with a number of extensions to the standard phrase-based model that improve performance on the Russian to English, Chinese to English, Arabic to English, and English to French TED-talk translation task. We also applied our existing ASR system to the TED-talk lecture ASR task. We discuss the architecture of the MIT-LL/AFRL MT system, improvements over our 2012 system, and experiments we ran during the IWSLT-2013 evaluation. Specifically, we focus on 1) cross-entropy filtering of MT training data, and 2) improved optimization techniques, 3) language modeling, and 4) approximation of out-of-vocabulary words.

2012

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The MIT-LL/AFRL IWSLT 2012 MT system
Jennifer Drexler | Wade Shen | Tim Anderson | Raymond Slyh | Brian Ore | Eric Hansen | Terry Gleason
Proceedings of the 9th International Workshop on Spoken Language Translation: Evaluation Campaign

This paper describes the MIT-LL/AFRL statistical MT system and the improvements that were developed during the IWSLT 2012 evaluation campaign. As part of these efforts, we experimented with a number of extensions to the standard phrase-based model that improve performance on the Arabic to English and English to French TED-talk translation task. We also applied our existing ASR system to the TED-talk lecture ASR task, and combined our ASR and MT systems for the TED-talk SLT task. We discuss the architecture of the MIT-LL/AFRL MT system, improvements over our 2011 system, and experiments we ran during the IWSLT-2012 evaluation. Specifically, we focus on 1) cross-domain translation using MAP adaptation, 2) cross-entropy filtering of MT training data, and 3) improved Arabic morphology for MT preprocessing.

2011

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The MIT-LL/AFRL IWSLT-2011 MT system
A. Ryan Aminzadeh | Tim Anderson | Ray Slyh | Brian Ore | Eric Hansen | Wade Shen | Jennifer Drexler | Terry Gleason
Proceedings of the 8th International Workshop on Spoken Language Translation: Evaluation Campaign

This paper describes the MIT-LL/AFRL statistical MT system and the improvements that were developed during the IWSLT 2011 evaluation campaign. As part of these efforts, we experimented with a number of extensions to the standard phrase-based model that improve performance on the Arabic to English and English to French TED-talk translation tasks. We also applied our existing ASR system to the TED-talk lecture ASR task. We discuss the architecture of the MIT-LL/AFRL MT system, improvements over our 2010 system, and experiments we ran during the IWSLT-2011 evaluation. Specifically, we focus on 1) speech recognition for lecture-like data, 2) cross-domain translation using MAP adaptation, and 3) improved Arabic morphology for MT preprocessing.