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Register a new userA Generative Framework for Simultaneous Machine Translation
إطار عام للترجمة الآلية المتزامنة
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نقترح إطارا عاما للترجمة الآلية المتزامنة.تستخدم النهج التقليدية عددا ثابتا من الكلمات المصدر لترجمة أو تعلم السياسات الديناميكية لعدد الكلمات المصدر عن طريق التعلم التعزيز.نحن هنا صياغة ترجمة متزامنة كمشكلة تعلم التسلسل الهيكلية إلى التسلسل.يتم تقديم متغير كامن إلى نموذج قراءة أو ترجمة الإجراءات في كل خطوة زمنية، ثم يتم دمجها بعد ذلك للنظر في جميع سياسات الترجمة الممكنة.يستخدم POISSON RE-PLISTIONSED قبل تنظيم السياسات التي تسمح للنموذج بتوازن بشكل صريح بجودة الترجمة والكمول.توضح التجارب فعالية وأغاني الإطار الإداري، والذي يحقق أفضل درجات بلو نظرا لمتوسط الألوان المتوسطة عن مصطلحات البيانات القياسية.
We propose a generative framework for simultaneous machine translation. Conventional approaches use a fixed number of source words to translate or learn dynamic policies for the number of source words by reinforcement learning. Here we formulate simultaneous translation as a structural sequence-to-sequence learning problem. A latent variable is introduced to model read or translate actions at every time step, which is then integrated out to consider all the possible translation policies. A re-parameterised Poisson prior is used to regularise the policies which allows the model to explicitly balance translation quality and latency. The experiments demonstrate the effectiveness and robustness of the generative framework, which achieves the best BLEU scores given different average translation latencies on benchmark datasets.
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Simultaneous machine translation has recently gained traction thanks to significant quality improvements and the advent of streaming applications. Simultaneous translation systems need to find a trade-off between translation quality and response time
, and with this purpose multiple latency measures have been proposed. However, latency evaluations for simultaneous translation are estimated at the sentence level, not taking into account the sequential nature of a streaming scenario. Indeed, these sentence-level latency measures are not well suited for continuous stream translation, resulting in figures that are not coherent with the simultaneous translation policy of the system being assessed. This work proposes a stream level adaptation of the current latency measures based on a re-segmentation approach applied to the output translation, that is successfully evaluated on streaming conditions for a reference IWSLT task.
Most existing simultaneous machine translation (SiMT) systems are trained and evaluated on offline translation corpora. We argue that SiMT systems should be trained and tested on real interpretation data. To illustrate this argument, we propose an in
terpretation test set and conduct a realistic evaluation of SiMT trained on offline translations. Our results, on our test set along with 3 existing smaller scale language pairs, highlight the difference of up-to 13.83 BLEU score when SiMT models are evaluated on translation vs interpretation data. In the absence of interpretation training data, we propose a translation-to-interpretation (T2I) style transfer method which allows converting existing offline translations into interpretation-style data, leading to up-to 2.8 BLEU improvement. However, the evaluation gap remains notable, calling for constructing large-scale interpretation corpora better suited for evaluating and developing SiMT systems.
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There are common semantics shared across text and images. Given a sentence in a source language, whether depicting the visual scene helps translation into a target language? Existing multimodal neural machine translation methods (MNMT) require triple
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