Dynamic Machine Translation in the LinkedIn Feed

Ivan K.
6 min readadvanced
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Overview

The article discusses the implementation of dynamic machine translation in the LinkedIn feed, addressing the challenges of language barriers among users. It highlights the collaborative efforts of teams to create a scalable solution that includes language detection, machine translation, and an improved user experience.

What You'll Learn

1

How to implement dynamic language translation in a social media feed

2

Why separating language detection from translation improves system performance

3

How to utilize Microsoft Text Analytics API for language detection

Prerequisites & Requirements

  • Understanding of machine translation and language processing concepts
  • Familiarity with Microsoft Azure Cognitive Services(optional)

Key Questions Answered

How does LinkedIn implement dynamic machine translation in its feed?
LinkedIn's dynamic machine translation is implemented through a combination of language detection, machine translation, and user interface enhancements. The process involves using the Microsoft Translator API and the Microsoft Text Analytics API to provide translations based on user language preferences, improving engagement across language barriers.
What technologies are used for language detection in LinkedIn's feed?
LinkedIn uses several technologies for language detection, including Espresso for data storage, Brooklin for change data capture, and the Microsoft Text Analytics API for identifying languages. This combination allows for efficient processing of high volumes of member-generated content.
What improvements were made from the initial prototype of translation features?
The initial prototype was improved by optimizing locale detection to reduce the number of calls to Microsoft services, allowing for a more efficient user experience. The new model also expanded functionality to include various content types beyond original posts, enhancing the translation feature's applicability.

Technologies & Tools

API
Microsoft Text Analytics API
Used for detecting languages in member-generated content.
API
Microsoft Translator API
Provides translation services for content that does not match the user's interface language.
Data Streaming
Brooklin
Used for change data capture to stream events from Espresso.
Database
Espresso
Stores member-generated content data.
Data Processing
Samza
Processes data for language detection and filtering.

Key Actionable Insights

1
Implementing a separate language detection process can significantly enhance the efficiency of translation services.
By decoupling language detection from translation, systems can handle higher volumes of data without impacting performance, making it easier to scale translation features.
2
Utilizing APIs like Microsoft Text Analytics can streamline language detection and improve accuracy.
This approach allows for real-time language tagging, which is essential for providing users with timely translations and enhancing their overall experience.
3
Incorporating user feedback during the prototype phase is crucial for refining features.
Positive user feedback can guide further development and highlight areas needing improvement, ensuring that the final product meets user expectations.

Common Pitfalls

1
Relying on direct database queries for language detection can slow down the system.
To avoid this, it's essential to implement a change data capture mechanism that allows for real-time updates without impacting performance.
2
Not considering user interface language preferences can lead to poor user experience.
Ensuring that translations are only triggered when necessary improves the relevance of the feature and enhances user satisfaction.

Related Concepts

Machine Translation
Language Processing
User Experience Design