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Machine translation post-editing services

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Leverage human expertise to enhance your machine translations

Companies increasingly turn to machine or AI translation to save time an money, but humans remain a vital part of the process. Machine translation post-editing services (MTPE) use human linguists to refine your content translated by machines or AI and deliver a high-quality final result. This includes reviewing for accuracy, tone, cultural sensitivity and the correct terminology and phrasing to ensure that you authentically communicate with your target audience.

Post-editing machine translation is particularly key for content in highly specialised fields such as market research, healthcare, legal and other technical sectors.

What is the difference between post-editing and proofreading?

Post-editing is the term used when the translation is created or provided by technology, such as machine translation or AI. Proofreading is when the translation has been done by humans. Both check for and correct the same elements, but post-editing usually requires more intervention, particularly to ensure consistency within and between documents, guarantee natural and fluent-sounding language and weed out hallucinations.

I’ve had my material machine translated, but I need to know if it’s ready to use

Machine translation can give you the gist of a text, but if you need an accurate rendition of it, you will likely need input from a professional and, above all,  human linguist. As an experienced translation agency, The Language Factory can evaluate your machine translation and advise on the best course of action. It may simply need some light editing, including correcting mistranslations and reviewing fluency and grammar. However, if complete accuracy and the right style, tone, specific terminology and client-facing phrasing require more extensive post-editing, we may recommend a full retranslation by a human linguist. We will always advise on the best approach given your requirements and time or budget constraints.

Why should I use machine translation post-editing?

Machine translation may offer speed and cost advantage, but it can come at a different price. When quality is compromised, this can affect your brand and business reputation. Post-editing a machine translation ensures accuracy in the first instance, but also cultural relevance, maintaining the tone and style, high quality and adherence to regulatory standards. 

Is post-editing always necessary for machine translation?

If you just want the gist of a document and won’t be making business-critical decisions based on the translation, the answer is probably no. If, however, you want reassurance that the translation is accurate, can’t afford hallucinations or you intend to publish it, human post-editing is vital. Not only will you have peace of mind that you and your brand are being portrayed accurately, but you may save yourself some potentially  embarrassing conversations with clients!

Trust TLF’s expert human translators for your machine translation post-editing

At TLF, we combine a team of around 1,000 mother-tongue human translators with expert Project Managers. All our translators who perform this service have a minimum of five years of professional experience in their chosen field, hold a Diploma, BA or MA in translation and are professional members of a recognised translation body. This has earned us a 97% client satisfaction rating for translation quality.

FAQs

What is machine translation post-editing?

Machine translation post-editing (MTPE) is when a professional human linguist reviews and refines content that has been translated by a machine or AI system. The linguist checks the translation against the original content for accuracy, meaning, terminology, grammar, fluency, tone and suitability for the intended audience. The level of editing depends on the purpose and quality requirements of the content.

Why should I consider machine translation post-editing services?

MTPE can combine the speed of machine translation with the judgement and language expertise of a professional linguist. Human post-editing will identify errors in meaning, terminology, grammar and phrasing, while ensuring the finished translation is appropriate for its intended audience. This can be particularly important when translated content represents your brand or is used in a specialist field.

When is machine translation post-editing the right choice?

MTPE can be suitable when machine-translated content provides a useful starting point but needs professional review before it is used. Suitability depends on factors such as the subject matter, language pair, intended audience, required quality and how the translation will be used. For highly-sensitive, specialised or creative content, a full human translation may be more appropriate. A professional translation provider can assess the material and recommend the most suitable approach.

Why is human review essential for machine translation?

Machine translation can provide a useful starting point, but a human linguist will assess the translation and identify issues that require professional correction. Human review ensures that terminology, tone, cultural references and phrasing are appropriate for the intended audience. This is particularly important for specialist content where an inaccurate or inappropriate translation could have significant consequences.

Is machine translation post-editing the same as AI translation?

No. AI or machine translation generates the initial translated content, whereas AI or machine translation post-editing involves a human linguist reviewing and improving that output. MTPE therefore adds a professional human quality control stage to machine-generated translation. The final level of intervention depends on the requirements of the project and the quality expected.

What does a human linguist check during machine translation post-editing?

A professional linguist reviews the machine-translated text against the original to check accuracy, omissions, terminology, grammar, fluency, tone and consistency. They can also identify wording that may be technically correct but unnatural or unsuitable for the target audience. The precise checks will depend on the agreed level of post-editing and the purpose of the content.

Can machine translation post-editing be used for specialist content?

Yes, but the suitability of MTPE should be assessed according to the subject matter and quality requirements. Specialist content will require linguists with relevant subject expertise and a strong understanding of the terminology used in that sector. For areas such as healthcare, legal and technical content, the consequences of an inaccurate translation can make professional human review particularly important.

Is post-editing better than translating from scratch?

It depends what you’re trying to achieve. The right approach depends on the source material, language pair, subject matter, machine translated output and required quality. If the machine translation is of a suitable quality, it may provide an efficient starting point for-post editing. If substantial rewriting is required, a professional human linguist translating from scratch may be more cost and time effective in the long run. TLF can assess the material and recommend the most suitable approach for your requirements.

Can you assess my existing machine translation before I use it?

Yes. If you already have content that has been translated using machine translation or AI, a professional linguist can assess the output against the original and identify whether it requires light editing, more extensive post-editing or a complete human retranslation. The most appropriate option will depend on the accuracy, terminology, tone and intended use of the content.

What is the difference between machine translation post-editing and proofreading?

The main difference is how the translation was produced. Post-editing is carried out on content generated by a machine or AI translation system, whereas proofreading involves checking a translation produced by a human translator. Both processes involve checking language quality, but post-editing often requires the linguist to assess whether the machine-generated translation is suitable for its intended purpose in addition to its accuracy and fluency.

How do I know whether my machine translation is ready to use?

You can only know whether your machine translation is ready to use by having a professional, human linguist review it against the source, particularly if the content will be published, used for business-critical communication or contains specialist terminology. TLF can assess your existing machine translation and advise whether it requires light post-editing, more extensive editing or human retranslation.

Our industry recognition, accreditations and association memberships

We are proud of our long-standing association with the Market Research Society and membership of language industry bodies, ATC (Association of Translation Companies) and ITI (Institute of Translation and Interpreting), and we abide by their strict codes of conduct and demonstrating our commitment to best practice for the benefit of our clients.

What do our clients say about us?

“Love working with Elena, always prompt and keeps to timings when possible. LF rates are always very reasonable too.”

Michael Tighe
Lumen Research

“It was a pleasure to collaboratre with Janka. Her proactivity and ensuring that all is done correctly was of a big help on the project!”

Emilija Gligurovska
GDCC

“TLF are superb to work with, their work is always of very high quality – keep up the good work!”

Stefan Cox
Programme Manager
M3

“Elena was super helpful during the entire process. She was proactive in approaching us with queries and gave us a clear deadline. She is always on top of things and a delight to work with. Thanks Elena.

Yashvi Patle
Senior Research Executive
CM Research

“As usual great support and understanding of our needs.”

Elena Tronina
Senior Project Manager
Ipsos

“Always great to work with Marcela. The client had some additional French translations they wanted to check and Marcela got back to us quickly.”

Stephen Lee
MPI

“Janka is wonderful, very thoughtful and easy to work with. Thank you Janka for the support!”

Stephanie Welles
IntelliSurvey

“Marcela’s attention to detail and commitment to meeting deadlines have surpassed our expectations. Her proficiency in translation has significantly contributed to the smooth execution of our projects. I am truly thankful for her outstanding contributions and look forward to continuing our collaboration with the Language Factory.

Anushree
CGA by NIQ

“Many thanks to Marcela and her very good communication on realistic timing.”

Bjorn Caroli
InMoment

“Marcela, did a great job providing the translations and answering questions the client had on some translation.”

Jill Beckman
Dynata

“I’m very pleased with the service and the quality received. thank you so much to all the team!”

Melisa Fernandez Ares
Project Manager
Sago

“I have worked with Janka a few times for this project, and she’s always been incredibly transparent, and taken time to ensure we are happy throughout the process of translation. Janka was checks in with me if a translator is unsure of certain things, which is much appreciated! It makes my job easier when coming to reviewing the final translations.”

Tom Frances
Account Manager
Cognitant

“This came over ahead of schedule wihich is always appreciated. It is also very easy to communicate with the team and book in a translation.”

Aleena Khan
Senior Research Executive
On Device Research

Specialist linguists

Over the past three decades, we have curated a community of linguists, collectively they are:

  • Native speakers of over 140 languages and all have at least 5 years’ professional experience translating for the market research sector
  • Experts in a broad range of sectors – from HR, to healthcare, marketing, cyber security and travel and tourism
  • Able to judge the correct tone, form of address and terminology based on extensive experience
  • Experienced in highlighting any potential cultural issues from the outset
Survey translation
Project Manager, Caroline

Market-leading project management

Your dedicated and experienced Project Manager will partner with you to:

  • Analyse your source files to confirm exactly what needs to be translated and identify efficiencies
  • Hand-pick the right mother-tongue linguist to provide you with expert translation services based on your target audience and brief
  • Harness their expertise to expedite the project
  • Provide a smooth and straightforward end-to-end service

Meet our expert project management team.

Talk to the TLF team

If you need help with your machine translation post-editing or any other language service, click the link below to contact our expert team.

Did you know we provide other language-related services?

Audio translation

HR translation

Localisation

Proofreading

Survey translation

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