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Comparing Data Labeling Tools: Actionable Guide for ML Teams

High-quality, accurately-labeled data is crucial to your success, but how to select the labeling tool that will drive your project to success? Here are our answers.

Comparing Data Labeling Tools: Actionable Guide for ML Teams

As a machine learning engineer, your task is to work with a lot of data using an AI project that will change the world. You know that having high-quality and accurate data is important. However, picking the right tool to label your data can be hard. How do you choose the best one?

This is where the data labeling platform face-off comes into play. It's a competition to find the best platform. But don't worry: we have created a guide to help you pick the right platform for your AI project so that you can make your dreams a reality.

The Utopian Data Labeling Tool


Features Kili Technology have

Before diving deep, let's envision the ideal data labeling platform. It should deliver:

  1. Exceptional data quality and consistency

  2. An optimized UI for efficient collaboration

  3. Comprehensive labeling tools for diverse data types

  4. Scalability to accommodate growing data sets

  5. A secure environment for sensitive data

  6. Professional services, including an on-demand skilled workforce and project management capabilities

Let's break down the steps to compare various tools and find the one that best fits your needs.

Note that to kick off the comparison process, you should gather a team of stakeholders who understand your project's needs. This team should include the following:

  • Data labelers or annotation experts

  • Machine learning engineers

  • Project managers

  • Subject Matter Experts

  • IT or security specialists

Step 1: Assess Data Quality Assurance

Accuracy is king when it comes to labeled data. A premier platform should have mechanisms to ensure high-quality, consistent labels. To evaluate this:

  • Seek tools with built-in quality control features, such as multiple annotator reviews and automatic consensus building.

  • Check for customizable validation rules, which help maintain label consistency and reduce errors.

  • Investigate the platform's track record through case studies, customer reviews, or even requesting a trial run with your data.


Prioritizing tasks

Step 2: Examine UI and Collaboration Features

An intuitive, user-friendly interface is crucial for efficient collaboration among labelers, engineers, and project managers. Look for:

  • Real-time collaboration capabilities enable multiple users to work on a project simultaneously.

  • Features to streamline communication, such as in-app messaging or annotation comments.

  • A customizable dashboard that displays key project metrics, making it easier to track progress and identify bottlenecks.


Kili Technology's platform with friendly interface

Step 3: Event-based integration

Each project may require a unique set of labeling tools, depending on the data type and use case. Ensure the platform supports:

  • A wide variety of annotation tools, from simple bounding boxes to complex polygon masks.

  • multiple data formats, including images, text, audio, and video.

  • Customizable labeling interfaces to match your specific project requirements, such as programmatic QA.


Programmatic QA within Kili Technology

Step 4 Gauge Scalability and Flexibility

Your data labeling platform should evolve with your project. Look for:

  • Cloud-based tools that can seamlessly scale up or down based on your needs.

  • Support for parallel processing and distributed workloads to handle large data sets efficiently.

  • Integration with popular ML frameworks and tools, streamlining your data pipeline.

Step 5: Scrutinize Security Measures

Data security is paramount, especially when handling sensitive information. Ensure the platform:

  • Offers robust access controls, including role-based permissions and multi-factor authentication.

  • Adheres to industry-standard security protocols and certifications, such as GDPR, HIPAA, or SOC 2 compliance.

  • Provides data encryption both in transit and at rest.


Kili Technology secures your data

Step 6: Assess the Professional Services

In addition to the capabilities mentioned above, a data labeling tool should offer extra services that let you concentrate on what matters most: your model. You don't want to be bogged down by the intricacies of managing a data labeling project. To achieve this, look for a tool that provides:

  • On-demand access to a highly-skilled data labeling workforce;

  • Project management services and/or ML experts' guidance.

Action Time

Let's now apply this knowledge to the real world. With our meticulously curated list of questions and criteria, you'll navigate these tools' ins and outs like a seasoned pro. In this section, we'll guide you through everything, from evaluating annotators' efficiency to assessing the tool's scalability – no detail left unexplored. And to make things even easier, we'll throw in a downloadable automatic scoring checklist. This indispensable tool will streamline your evaluation process, allowing you to identify the winning platform effortlessly.

Get started

Learn More

Download our free excel template on how to choose your data labeling platform, and get instant access to the features checklist that will help to accelerate your data labeling.

Make Your Choice

You and your team can compare different data labeling tools by following these steps. Choose the option that best meets your project needs for a successful AI project.

Remember that there is an ideal data labeling platform waiting for you to find it. With high-quality, accurately labeled data, a collaborative environment, and professional services available, your machine-learning models will be trained effectively and efficiently, taking your AI project to new heights.

As you start this journey, keep your list of criteria and requirements close by, and don't hesitate to ask important questions. Engage with platform providers, request demos, and seek feedback from peers who have used these tools before. With knowledge and a clear vision, you'll be able to navigate the world of data labeling tools and make the best choice for your project.


Now, you're ready to conquer the data labeling domain with the tools and insights you need to make an informed decision. With the right platform by your side, your AI project is destined for success.

Note that if you're a professional wondering if your company should use a data labeling tool, we've gathered the most common reasons why companies choose to do so in a dedicated article.

Good luck, and happy labeling!

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