Data labeling for natural language processing

Extract information from natural language data and take full control of your training data. Power your NLP algorithm with datasets of any size.
Top-quality data
Collect and annotate training data that meets and exceeds industry quality standards thanks to multiple quality control methods and mechanisms available in Yandex.Toloka.
Scalable projects
Have any amounts of image, text, speech, audio or video data collected and labeled for you by millions of skilled Yandex.Toloka users across the globe.
Cost-efficiency
Save time and money with this purpose-built platform for handling large-scale data collection and annotation projects, on demand 24/7, at your own price and within your timeframe.
Free, powerful API
Build scalable and fully automated human-in-the-loop machine learning pipelines with a powerful open API.

Annotations we support

With Yandex.Toloka, you can control data labeling accuracy to build a predictable pipeline of high-quality training data that impacts your NLP algorithms. Our platform supports annotation for named entity recognition, sentiment analysis, speech recognition, text and intent classification, text recognition, and more.
Search relevance

Use the Yandex.Toloka crowd to evaluate the performance of your search engine and discover which ranking model works best. Collect data for improving your search relevance algorithm.

Use cases:
  • E-commerce 
  • Cataloging and Recommendations
  • Text classification

    Ask performers to classify or categorize entire texts with predefined category tags.

    Use cases:
  • E-commerce
  • Cataloging and Recommendations
  • Content moderation
  • Optimize chatbots, web pages, social media
  • Sentiment analysis

    Use Yandex.Toloka to label texts with sentiment categories for any purpose, from understanding customer reviews to spam filtering.

    Use cases:
  • Spam detection
  • Email filtering
  • Analyzing customer reviews
  • Intent classification

    Ask performers to categorize user queries into relevant predefined intents. Use labeled data to train your chatbot, voice assistant, or any other conversational agent to better understand your users.

    Use cases:
  • Chatbot
  • Voice assistant
  • Conversational agent
  • Utterance collection

    Create a collection of utterances that typically occur in conversations, based on instructions or scenarios that you provide for our performers.

    Use cases:
  • Chatbot
  • Voice assistant
  • Conversational agent
  • Named entity recognition

    Use our skilled performers to identify parts of text, classify proper nouns, or label any other entities.

    Use cases:
  • Named entity recognition (NER)
  • Audio data collection

    Get recorded speech samples from performers according to your instructions and use them to create or fine-tune a voice interface.

    Use cases:
  • TTS (Text-to-Speech) and speech synthesis technologies
  • Audio transcription

    Ask performers to transcribe audio files or check existing transcriptions for accuracy. 

    Use cases:
  • Speech recognition model
  • Chatbot
  • Audio classification

    Use Yandex.Toloka to detect emotion, categorize topics, or identify events in audio samples or conversations to improve your model.

    Use cases:
  • Speech recognition model
  • Chatbot
  • Text recognition

    Ask performers to transcribe text in PDF files. Use labeled data to train your text recognition algorithms to better identify specific parts of scanned documents, or validate and fine-tune the output of your own OCR models. 

    Use cases:
  • Document Processing
  • Transcription
  • Optical Character Recognition (OCR)
  • Use the Yandex.Toloka crowd to evaluate the performance of your search engine and discover which ranking model works best. Collect data for improving your search relevance algorithm.

    Use cases:
  • E-commerce 
  • Cataloging and Recommendations
  • Crowdsourcing means unlimited resources
    Data collection and labeling processes place high demands on the time, skills and expertise of a large number of people. Yandex.Toloka gives you access to an unlimited crowdforce available 24/7 across the globe, plus intelligent tools and quality control methodologies for transparent and scalable workflows.
    Real-time insights
    Track your projects with real-time statistics on progress, spending, quality, time spent on tasks and active users involved. Leverage detailed analytics to fine-tune as necessary and make timely decisions to optimize speed, quality and budget.

    Success stories

    Get started now
    Take advantage of Yandex technologies and resources, including millions of performers available for your projects 24/7.
    Thu Sep 17 2020 14:07:40 GMT+0300 (Moscow Standard Time)