Wmt23 Cometkiwi Da Xl

Multilingual MT evaluator

The Wmt23 Cometkiwi Da Xl model is a powerful tool for evaluating machine translations. It uses XLM-R XL, a large language model with 3.5 billion parameters, to provide a single score between 0 and 1 for a given source text and its translation. This score indicates how accurate the translation is, with 1 being perfect and 0 being random. But what makes this model remarkable is its ability to cover a wide range of languages, including many that are often underrepresented in language models. With support for over 100 languages, this model is a valuable resource for anyone looking to evaluate machine translations. However, it does require a significant amount of GPU memory, at least 15GB, to run efficiently. This model is best used for reference-free MT evaluation, and its results are most reliable for language pairs that are covered by the XLM-R XL model.

Unbabel cc-by-nc-sa-4.0 Updated 4 months ago

Table of Contents

Model Overview

The Current Model is a powerful tool for machine translation evaluation. It’s built on top of the XLM-R XL model, which means it’s got a whopping 3.5 billion parameters and requires a minimum of 15GB of GPU memory. But don’t worry, it’s worth it!

Capabilities

So, what can it do? This model is designed for reference-free MT evaluation, which means it can give you a score for how good a translation is without needing the original text. It takes in a source text and its translation, and outputs a single score between 0 and 1. A score of 1 means the translation is perfect, while a score of 0 means it’s completely random.

What languages does it cover?

This model can handle a massive list of languages, including:

  • Afrikaans
  • Albanian
  • Amharic
  • Arabic
  • Armenian
  • Assamese
  • Azerbaijani
  • Basque
  • Belarusian
  • Bengali
  • Bengali Romanized
  • Bosnian
  • Breton
  • Bulgarian
  • Burmese
  • Burmese
  • Catalan
  • Chinese (Simplified)
  • Chinese (Traditional)
  • Croatian
  • Czech
  • Danish
  • Dutch
  • English
  • Esperanto
  • Estonian
  • Filipino
  • Finnish
  • French
  • Galician
  • Georgian
  • German
  • Greek
  • Gujarati
  • Hausa
  • Hebrew
  • Hindi
  • Hindi Romanized
  • Hungarian
  • Icelandic
  • Indonesian
  • Irish
  • Italian
  • Japanese
  • Javanese
  • Kannada
  • Kazakh
  • Khmer
  • Korean
  • Kurdish (Kurmanji)
  • Kyrgyz
  • Lao
  • Latin
  • Latvian
  • Lithuanian
  • Macedonian
  • Malagasy
  • Malay
  • Malayalam
  • Marathi
  • Mongolian
  • Nepali
  • Norwegian
  • Oriya
  • Oromo
  • Pashto
  • Persian
  • Polish
  • Portuguese
  • Punjabi
  • Romanian
  • Russian
  • Sanskrit
  • Scottish Gaelic
  • Serbian
  • Sindhi
  • Sinhala
  • Slovak
  • Slovenian
  • Somali
  • Spanish
  • Sundanese
  • Swahili
  • Swedish
  • Tamil
  • Tamil Romanized
  • Telugu
  • Telugu Romanized
  • Thai
  • Turkish
  • Ukrainian
  • Urdu
  • Urdu Romanized
  • Uyghur
  • Uzbek
  • Vietnamese
  • Welsh
  • Western Frisian
  • Xhosa
  • Yiddish

But remember, if you’re working with language pairs that aren’t on this list, the results might not be reliable.

How to use it?

You can use this model through the COMET CLI or with Python. First, make sure you have the unbabel-comet package installed (version 2.1.0 or higher). Then, you can use the model like this:

from comet import download_model, load_from_checkpoint
model_path = download_model("Unbabel/wmt23-cometkiwi-da-xl")
model = load_from_checkpoint(model_path)
data = [...]  # your source and translation data
model_output = model.predict(data, batch_size=8, gpus=1)
print(model_output)
Examples
Evaluate the translation quality of the source text 'The output signal provides constant sync so the display never glitches.' and its translation 'Das Ausgangssignal bietet eine konstante Synchronisation, so dass die Anzeige nie stört.' 0.92
Provide a score for the translation of 'Kroužek ilustrace je určen všem milovníkům umění ve věku od 10 do 15 let.' to 'Кільце ілюстрації призначене для всіх любителів мистецтва у віці від 10 до 15 років.' 0.95
Assess the quality of the translation from 'Mandela then became South Africa's first black president after his African National Congress party won the 1994 election.' to 'その後、1994年の選挙でアフリカ国民会議派が勝利し、南アフリカ初の黒人大統領となった。' 0.89

Performance

So, how does it perform? Let’s take a closer look.

Speed

The model requires a minimum of 15GB of GPU memory, which is a significant amount of power. But what does this mean for its speed? In short, it’s fast. It can process large amounts of data quickly, making it ideal for tasks that require rapid evaluation of machine translations.

Accuracy

But speed is only half the story. How accurate is it? The answer is: very accurate. With 3.5 billion parameters, it has the capacity to learn and understand complex patterns in language. This means it can provide reliable scores for machine translations, even in cases where the translations are nuanced or context-dependent.

Efficiency

So, how efficient is it? The answer is: very efficient. It can process multiple translations at once, using a batch size of up to 8 and 1 GPU. This makes it ideal for large-scale tasks, where multiple translations need to be evaluated quickly and accurately.

Limitations

It’s not perfect, though. Let’s take a closer look at some of its limitations.

Language Coverage

The model is built on top of XLM-R XL, which covers a wide range of languages. However, it’s essential to note that results for language pairs containing uncovered languages are unreliable.

Technical Requirements

The model requires a minimum of 15GB of GPU memory to function properly. This can be a significant constraint for users with limited computational resources.

Model Size

With 3.5 billion parameters, the model is quite large. This can make it challenging to deploy and use, especially for users with limited computational resources.

Potential Biases

As with any AI model, there’s a risk of biases in the data used to train the model. This can result in unfair or discriminatory outcomes.

Limited Context Understanding

The model is designed to evaluate translations based on a single score between 0 and 1. However, this limited context understanding can lead to oversimplification of complex translation tasks.

To get the most out of it, it’s essential to be aware of these limitations and use it within its intended scope.

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