Data Annotation Engineer

10+ Data Annotation Engineer Interview Questions and Answers

Updated 2 Aug 2025
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Asked in Flipside AI

6d ago

Q. How many years of experience do you have in data annotation?

Ans.

I have 3 years of experience in data annotation for various industries.

  • I have worked on annotating image and video data for computer vision projects

  • I have experience in text annotation for natural language processing tasks

  • I have collaborated with data scientists to improve machine learning models through accurate annotations

6d ago

Q. What do you know about data annotation?

Ans.

Data annotation is the process of labeling or tagging data to make it understandable and usable for machine learning algorithms.

  • Data annotation involves adding metadata or annotations to raw data.

  • It helps in training machine learning models by providing labeled examples.

  • Common types of data annotation include image labeling, text tagging, and audio transcription.

  • Data annotation can be done manually by human annotators or through automated tools.

  • Accuracy and consistency are cr...read more

Data Annotation Engineer Interview Questions and Answers for Freshers

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6d ago

Q. How many years of experience do you have in a Data Annotation role?

Ans.

I have 3 years of experience in a Data Annotation role.

  • I have worked as a Data Annotation Engineer for 3 years.

  • I have experience in annotating various types of data such as images, text, and audio.

  • I have used tools like Labelbox, Amazon Mechanical Turk, and Prodigy for data annotation.

  • I have collaborated with data scientists and machine learning engineers to improve model performance.

3d ago

Q. What knowledge do you have about machine learning?

Ans.

Machine learning is a branch of artificial intelligence that involves the development of algorithms and models that enable computers to learn from and make predictions or decisions based on data.

  • Machine learning involves training algorithms to learn patterns and make predictions from data.

  • It can be supervised, unsupervised, or semi-supervised learning.

  • Common machine learning techniques include regression, classification, clustering, and deep learning.

  • Examples of machine learn...read more

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Asked in Cogito Tech

3d ago

Q. Introduction and what is AI model

Ans.

AI model is a computer program that can learn and make predictions based on data.

  • AI model uses algorithms to analyze data and identify patterns.

  • It can be trained on large datasets to improve accuracy.

  • Examples include image recognition, speech recognition, and natural language processing.

  • AI models require data annotation to improve their accuracy and performance.

5d ago

Q. How many types of data annotations are there?

Ans.

There are two main types of data annotations: manual annotations and automated annotations.

  • Manual annotations involve human annotators labeling data by hand, such as drawing bounding boxes around objects in images.

  • Automated annotations use algorithms to automatically label data, such as using computer vision models to detect objects in images.

  • Examples: Image segmentation annotations, text classification annotations.

Data Annotation Engineer Jobs

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Data Annotation Engineer 0-0 years
Intellect Design Arena
3.7
Chennai
6d ago

Q. What is the difference between AI and ML?

Ans.

AI is a broader concept of machines being able to carry out tasks in a smart way, while ML is a subset of AI that allows machines to learn from data.

  • AI is the broader concept of machines being able to carry out tasks in a smart way, often involving decision-making and problem-solving.

  • ML is a subset of AI that focuses on the development of algorithms and statistical models that allow machines to learn from and make predictions or decisions based on data.

  • AI can encompass a wide...read more

5d ago

Q. What is your knowledge of annotation?

Ans.

Annotation is the process of labeling data to make it understandable for machines.

  • Annotation involves labeling data with relevant tags or categories.

  • It helps in training machine learning models by providing labeled examples.

  • Examples include annotating images with bounding boxes for object detection or labeling text data for sentiment analysis.

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6d ago

Q. What are the different types of data annotation?

Ans.

Data annotation types are labels or tags assigned to data to provide context and make it understandable for machine learning algorithms.

  • Classification: Assigning categories or labels to data points (e.g. spam/not spam)

  • Bounding Box: Drawing boxes around objects in images to identify their location

  • Segmentation: Identifying and labeling specific parts of an image (e.g. pixel-level segmentation)

  • Named Entity Recognition: Identifying and classifying named entities in text data (e.g...read more

Asked in Infosys

6d ago

Q. What is Artificial Intelligence?

Ans.

Artificial intelligence is the simulation of human intelligence processes by machines, especially computer systems.

  • AI involves machines learning from data, recognizing patterns, and making decisions.

  • Examples of AI include virtual assistants like Siri, self-driving cars, and recommendation systems.

  • AI can be categorized into narrow AI (specific tasks) and general AI (human-like intelligence).

Q. What do you know about the AI field?

Ans.

AI field involves the development of algorithms and systems that can perform tasks that typically require human intelligence.

  • AI involves the development of algorithms and systems that can learn from data and make decisions or predictions.

  • Machine learning is a subset of AI that focuses on the development of algorithms that can learn from and make predictions or decisions based on data.

  • Deep learning is a subset of machine learning that uses neural networks to model and solve co...read more

Asked in Amazon

5d ago

Q. What is annotation?

Ans.

Annotation is the process of labeling data to make it understandable for machines, often used in machine learning and AI.

  • Annotation involves adding metadata or tags to data to provide context or meaning.

  • It helps in training machine learning models by providing labeled examples for the algorithm to learn from.

  • Examples of annotation include labeling images with objects or text, tagging documents with categories, or marking audio files with transcriptions.

4d ago

Q. Experience in safety field

Ans.

I have experience in the safety field through previous roles in data annotation for autonomous vehicles.

  • Worked on labeling and annotating data related to safety features in autonomous vehicles

  • Ensured accuracy and quality of data to improve safety algorithms

  • Collaborated with safety engineers to optimize data annotation processes

6d ago

Q. Tell me about GIS

Ans.

GIS stands for Geographic Information System, a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.

  • GIS integrates spatial data (maps, satellite images, etc.) with attribute data (population statistics, land use, etc.)

  • It is used in various industries such as urban planning, environmental management, transportation, and telecommunications

  • GIS helps in making informed decisions by visualizing data on maps and analyzing spatial r...read more

3d ago

Q. Explain what a prompt is.

Ans.

A prompt is a cue or instruction that guides a model's response or behavior in generating text or completing tasks.

  • Prompts can be questions, statements, or keywords that initiate a response from a model.

  • Example: 'What are the benefits of exercise?' serves as a prompt for generating a health-related response.

  • In programming, prompts can be used to request user input, like 'Enter your name:'.

  • Effective prompts can lead to more accurate and relevant outputs from AI models.

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