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Transforming Data Preparation 80% of AI Project Effort Data Annotation-Integrated Solution
for Japan-Specific Data

By combining AI, engineering expertise, and skilled annotators, we optimize both data annotation and quality control. Even for large-scale datasets, we simultaneously improve cost efficiency, quality, and lead time.

Projects Completed
700 +
Companies Partnered
100 +
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  • 富士通
  • JR東日本商事_ロゴ_横_緑_1
  • アセット 1-80
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  • まねきねこロゴ
  • 名古屋大学_logo
  • THK_logo
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  • Color
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CHALLENGES

Challenges We Solve

  • 1

    Labeling costs have doubled or tripled, putting significant pressure on budgets.

  • 2

    Increasing data volume no longer translates into performance gains, resulting in an accuracy plateau.

  • 3

    Quality concerns require re-inspection, leading to delays in development schedules.

Our solution brings human expertise and AI together to streamline data annotation and quality control.

We solve all three challenges simultaneously through continuous optimization.

SOLUTION

Our Approach

Nextremer employs a "Human-in-the-Loop" approach, fostering close collaboration between AI, engineers, and annotators. Rather than fully automating the process, we create a continuous feedback loop between humans and AI. This approach can reduce data preparation effort by up to 40%, enabling the rapid construction of large-scale datasets that meet stringent quality requirements.

Human-in-the-Loop Diagram

Video | How We Digital Transformation and Quality Control — Project HANA

Cost Reduction

Pre-annotation is performed using pre-trained models fine-tuned by our engineers. By automating the initial labeling process, we prevent costs from scaling linearly with data volume.

Quality Improvement

AI detects inconsistencies and noise in labeled data and quantifies potential risks. Annotators focus on high-risk areas, improving overall accuracy while reducing performance variability.

Shorter Lead Time

Through structured collaboration between AI, engineers, and annotators, we accelerate the cycle of data preparation and model refinement. This shortens the time from project kickoff to achieving target accuracy.

*Man-hour reduction rates vary depending on project scale and environment.

REASONS

Why Clients Choose Us

Quality Assurance

01 A Quality Assurance Framework Grounded in Joint Academic Research

To strengthen the reliability of our data annotation operations, we have conducted joint research with the University of Tsukuba. Drawing on insights gained from methodological standardization, guideline development, and reproducibility validation, we have established a quality management system that integrates academic rigor with real-world operational expertise.

Comprehensive Support

02 End-to-End Support from the Early Planning Stage

We go beyond conventional data annotation services by engaging from the specification design stage through environment and tool setup. Through structured and systematic process management across every phase, we deliver solutions optimized to address each client’s unique business challenges.

Flexible Adaptation

03 Flexible Adaptation to Additional Requirements and Specification Changes

We respond flexibly to unforeseen cases that arise during annotation projects. Rather than rigidly following the initial approach, we continuously refine specifications and guidelines to ensure that even complex or edge-case data can be effectively leveraged.

Secure Management of Your Data Assets

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Limited Data Use

All client data and deliverables are used exclusively for the relevant project. We do not repurpose client data for our own products or services.

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Controlled Access

We safeguard data through strict access controls, comprehensive logging, and continuous monitoring, preventing unauthorized access and data leakage.

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Model Disposal

Upon project completion, we promptly dispose of trained models, intermediate artifacts, and any data no longer required in accordance with established data handling policies.

PROCESS

How It Works

STEP 01

Requirement Definition

  • Clarify business objectives and the purpose of AI utilization
  • Define clear project success criteria
  • Develop a project plan that balances cost, quality, and delivery timeline
STEP 02

Data Collection

  • Define requirements for collecting raw data that accurately reflects real-world operational scenarios
  • Develop a data collection plan that addresses copyright, privacy, and compliance considerations
  • Source raw data covering edge cases and diverse environments
STEP 03

Specification Design

  • Define requirements such as data types, data volume, accuracy, coverage, and label structure
  • Elicit and structure the client’s domain knowledge and evaluation criteria
  • Establish quantitative metrics and develop a specification document that accurately reflects the collected information
STEP 04

Team Assembly

  • Assign team members best suited to the project and clearly define roles and responsibilities
  • Provide targeted training to rapidly develop the industry-specific knowledge and skills required
STEP 05

Environment Setup

  • Build a workspace incorporating AI models designed to support pre-annotation
  • Research, select, and customize data annotation tools
  • Integrate systems to visualize metrics such as task volume, progress, quality, and error rates
STEP 06

Data Annotation

  • Validate the specifications and environment configuration through pilot testing with a small dataset
  • After AI performs pre-annotation, annotators review and correct the labels
  • Ensure quality through a combination of AI-based anomaly detection and manual random sampling
CASE STUDIES

Client Success Stories

Industrial Segmentation Case Study

Large-Scale, High-Complexity Image Segmentation Delivered in Months

To improve image recognition accuracy, we executed large-scale segmentation under a tight timeline. Through technical process optimization and a robust operational framework, we efficiently processed vast volumes of complex image data, achieving high standards of quality, scalability, and speed.

Agricultural AI Support Case Study

End-to-End AI Development Support Beginning with Expert-Driven Specification Design

To enhance crop detection accuracy, we provided comprehensive support from specification design through data annotation. Working closely with the client, we clearly defined growth stages based on the conditions of various plant organs (petals, fruits, sepals, etc.). By incorporating domain expertise into the specification design process, we achieved significant improvements in detection accuracy.

Tool Customization Case Study

Environment Setup Including Tool Evaluation, Selection, and Customization

We supported AI development, including data annotation tool evaluation, selection, customization, and environment setup. To meet the requirement for multi-perspective data annotation based on complex specifications, our engineers implemented a proprietary tool with tailored configurations. This resulted in significant efficiency gains and the delivery of highly information-rich datasets.

CONTACT

Contact Us

ARTICLES

Helpful Resources