Data Annotations: Backbone For ML Model Trainings

Jul 27, 2021
3 min read

Artificial Intelligence (AI) and Machine Learning (ML) have changed the way we live. Starting with the product recommendation and search engine results to self-driving cars and drones everything is powered by artificial intelligence.

Today we are building a future where automation and autonomous power are everything. To build such automated applications and machines, datasets need to be properly trained. However, since the dataset is very large and the human training method will not help, artificial intelligence companies use data interpretation to label this material and train machine learning models

‌What Is Data Annotation?

Data annotation is a process to facilitate access to machines. It is important for machine learning and processing labelled datasets. And it is especially important to learn from the input patterns to reach the desired output. Data comes in various formats such as images, text, videos, and documents, but these types cannot be fed into a machine learning model without any distinctive documentation. Using data annotation, companies can train their ML models with the right tools and techniques. Here are some uses of data annotation:

• Using the data described to train the machine learning model, the accuracy of this method will be higher.
• Trained machine learning models with noted data take advantage of a      seamless experience for end-users.
• Even virtual assistants or chatbots use trained datasets to answer users questions.
• A machine learning model trained with machine data provides comprehensive results in search engine recommendation.
• In addition to helping on a large scale, data annotation can help with local labelling based on geography. It is labelled locally for information, images and wither content.

What Is Human Annotation Data?

Humans spend a lot of time helping machines learn how the world works. Therefore, the data annotation hinders humans in the process of improving performance.

Types of Data Annotation

• Text Annotation:

Today, most companies are moving towards automation models, in particular, the power of their text-based working systems. Recently, text annotation has been the focus of attention for increasing adoption. Text annotation includes various interpretations such as emotions, intentions, and inquiries. For example, text annotation helps machines recognize keywords in sentences and make sentences more meaningful. Text annotation is highlighted with specific colours and shades so that the reading sentences are carefully trained in machine learning algorithms.

• Video Annotation:

Humans are seen as a good source for datasets training when it comes to video annotation. For example, companies search engine results. They gather information from many people according to their preferences and promote similar content to others. Video annotation using autonomous vehicles things like cars, traffic lights, signboards, street lights and walking on the roads can be understood.

• Image Annotation:

Image annotation is important for dataset training. Many advanced technologies such as computer vision, robotic vision, facial recognition, etc. Rely on image annotation to interpret pictorial forms. In order to train models with image data, metadata should be assigned to images in the form of identifiers, or keywords.

• Audio Annotation:

Audio annotation is different from other types of annotation. Unlike others, audio annotation takes in-depth steps to copy speech data and stamp time, including a copy of specific pronunciation and publication. Each case is different, and some require a very specific approach: for example, tagging aggressive speech gestures and non-speech sounds like a broken glass for use in security and emergency hotline technology applications.

Benefits of Data Annotation

Data annotation benefits a variety of AI and machine learning technologies and companies and their users:
• Chatbots and voice assistants have been trained to communicate with users in a more humane way.
• High-quality results are returned for search queries.
• Internal IoT devices can detect everything from the human voice to sudden movement in the home, which improves availability and home security.
• Users Online videos, photos and articles have become increasingly accessible to users with vision or hearing impairment. Speech recognition technology has also increased access to mobile and desktop devices.
• Facial and body recognition tools can be used for anything from enhancing biosecurity to AI-driven medical diagnosis.
• New technologies, such as self-driving cars, can read and process landscape-based data that replaces most human actions.


Data annotation is essential for AI and machine learning, and both have added immense value to the world. To keep the AI industry growing, data annotations are needed. This will continue to grow as more modest datasets are required to develop some machine learning tools.