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The ability of ML algorithms to deliver the required results depends on data annotation. This market has seen rapid growth recently. According to research, the data labeling market will grow from $1.5 billion in 2019 to $3.5 billion in 2024. The rise of AI tools has resulted in an increased demand for data annotation specialists.
To fully grasp everything data annotation specialists do, we need to understand what data annotation is. As we know, data can come in various forms. It can be a text form, images, video, or audio files. For the data to become useful, it must be processed. In other words, data must be organized and clear, i.e., labeled.
We will explain it with an example. If you have a dataset filled with images of pets, make sure that each photo of a cat is labeled as “cat”, each dog as “dog”, and so on. With such a categorization, data is not a mass of disorganized information, it’s labeled. And that’s what data annotation specialists mainly do – turn raw data into labeled data.
Thus, data annotation is the process of rewriting, tagging, or marking data. AI and ML models need to be consistently trained to be more effective in delivering the required results. So, the more annotated data is fed into the model, the faster it learns.
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This type of annotation can use frame-by-frame bounding boxes. It can also use the video annotation tool to track motion. Hence, it involves breaking down the video into frames or segments and then labeling each frame with descriptive metadata. This can include the following elements:
Video annotation is essential in industries like self-driving cars, security, and entertainment.
Image annotation mainly includes bounding boxes and semantic segmentation. This involves identifying and adding labels to specific features within the image, such as objects, people, or actions. It is an important task in various industries, such as e-commerce, healthcare, and autonomous vehicles.
Text annotation involves the assignment of categories to sentences or paragraphs based on their topics within a particular document. It has a vital application in chatbots and virtual assistants. It can be used in industries, such as NLP, social media analysis, and customer service.
This type of annotation is widely used in natural language processing (NLP). Hence, virtual assistant models are trained on tagged data to generate accurate answers. Speech recognition, music analysis, or voice-activated devices benefit from audio data annotation.
A data annotation specialist is responsible for labeling or categorizing data. This involves tagging or annotating various types of data, such as text, images, audio, or video. The goal is to make it easier for algorithms to process and understand.
Some common tasks of a data annotation specialist include:
Some of the skills a data annotation specialist should have:
Of course, skills and responsibilities will vary depending on the type of annotation.
In summary, data annotation is about labeling or marking relevant metadata in a dataset to allow machines to understand what it is. The dataset can be in any form, such as an image, an audio file, a video, or even text. And this is the responsibility of data annotation specialists, i.e., label the data.
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Abdul Aziz Mondol is a professional blogger who is having a colossal interest in writing blogs and other jones of calligraphies. In terms of his professional commitments, he loves to share content related to business, finance, technology, and the gaming niche.