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  1. DZone
  2. Data Engineering
  3. Data
  4. Why Clean Data Is the Foundation of Successful AI Systems

Why Clean Data Is the Foundation of Successful AI Systems

Poor data quality costs enterprises $406M annually. Learn in this article some key challenges and best practices for ensuring data quality in AI systems.

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Vaishali Mishra user avatar
Vaishali Mishra
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Apr. 08, 25 · Analysis
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According to recent research, enterprises would probably be losing approximately $406 million every year due to low-quality data, which prevents their AI applications from working efficiently [1][2][3]. Research shows that the accumulated losses will be a staggering amount, reaching $745 billion by the end of 2025. Data quality is not an option or recommendation for developers and data engineers; it is a technical requirement. 

This article describes the gateways, sources, and methods for creating AI systems that depend on a flow of quality information. 

Financial loss is just the tip of the iceberg of the destructive effects of poor data quality. Insights must be actionable, specifically for data-driven organizations. With AI systems being applied in more and more domains, the cost of using poor data is ever-increasing. In healthcare, for example, erroneous patient data can result in misdiagnoses or incorrect treatment. In finance, faulty market data can lead to receiving lousy investment advice, which can cost billions. 

Furthermore, the impacts of subpar data can be felt throughout an organization’s entire AI ecosystem. This can result in biased or inconsistent machine learning models, which create a lack of trust in AI-driven insights. This, in turn, can stifle AI adoption and innovation, placing companies that do so at a competitive disadvantage in an increasingly data-driven night lights business environment. 

Real-world experience, therefore, shows that to overcome these challenges, organizations need data quality as one of the pillars of their AI strategy. Essentially, this means improved processes and systems for data governance, investment in enhanced data cleansing and validation tools, and upskilling at all levels for increased data literacy in the enterprise. Data is the new oil, but to oil that can be a perfect blend for all, businesses must elevate data to an information level to enhance with humans and machines for unlimited performance.

Why Data Quality Matters

Models trained with AI tend to magnify the accuracy issues of input data, which can have far-reaching effects on the world. Here are some of the more prominent examples:

  • Recruiting tool: Historical hiring data included gender bias, which resulted in discrimination against women in hiring [4][5][6].
  • Microsoft’s chatbot Tay: Released inappropriate tweets after being trained on unmoderated social media [7][8][9].
  • IBM Watson for Oncology: It failed because the data it was trained on was synthetic and did not reflect actual patient cases [9][10][11].
  • “80% of the work in machine learning is data preparation,” as Andrew Ng (Stanford AI Lab) points out [12]. Even a powerful model such as the GPT-4 could fail miserably without clean data to train on.

Key Challenges in 2025

Bias and Incomplete Datasets

  • Problem: Too often, AI models trained on biased or unequipped datasets make poor predictions. For instance, dark-skinned people have been found to have an error rate 34% higher on facial recognition systems trained on undiverse data [13].
  • Solution: Conduct automated bias detection frameworks as well as by integrating tools like Label Studio and Datafold or using an active learning loop; depending on the immediate need to improve the diversity of dataset labels [14][15].

Regulatory Compliance

  • Pain point: Emerging data regulations like GDPR and the new 2025 AI regulations set up in India necessitate auditable data lineage and ethical AI practices [16].
  • Solution: Use modern data-sharing tools, such as IBM Watson Knowledge Catalog, which is designed with role-based access controls and differential privacy mechanisms to ensure compliance [16][17].

Infrastructure Costs

  • Problem: The cost of training LLMs like GPT-4 surpasses $10 million in GPU resources [18].
  • Solution: Use small language models (SLMs) — Microsoft’s Phi-3, which achieves very close to identical performance at one-tenth the cost by employing curated, high-quality training data. You are on the verge of the recent news, and advancements like DeepSeek R1 prove the success of large language models using low-cost configurations [18].

Tools and Techniques for Ensuring Data Quality in AI

Best Data Quality Tools for AI (2025)

Tool

Strengths

Use Case

Ataccama

AI-powered anomaly detection

Enterprise-scale data quality

Informatica

Prebuilt AI rules for observability

Real-time streaming data

Datafold

Automated regression testing

ML model input monitoring

Great Expectations

Schema validation

Open-source data pipelines


Code Example: Real-Time Data Validation with TensorFlow

Python
 
import tensorflow_data_validation as tfdv
#Calculate statistics and detect values out of the ordinary
stats = tfdv. data_path = generate_statistics_from_tfrecord()
schema = tfdv. infer_schema(stats)
anomalies = tfdv. stats[validate_statistics(stats, schema)
#Display detected anomalies
tfdv. display_anomalies(anomalies)


Best Practices for Developers

Driving Proactive Data Governance

  • Data contracts: Establish expected input and output JSON schemas as contracts [19].
  • Automated lineage tracking: Use Apache Atlas to trace the data flow from the source to the AI models [19].

Adopt Real-Time Monitoring

  • Monitoring feature drift (e.g., missing data >2% in input or KL divergence > 0.1) for inconsistencies before deployment [14][15].

Optimize Data Labeling

  • Label uncertain samples in order of priority using active learning to improve model performance:
Python
 
import numpy as np
model.eval()
uncertainties = entropy(model. predict_proba(unlabeled_data))
query_indices = np. argsort(uncertainties)[-100:]#pick top 100 uncertainty


Case Studies: Learning in the Field

Success: AstraZeneca’s 3-Minute Analytics

  • Challenge: Poor-quality clinical trial data delayed drug development.
  • Solution: Implemented Talend Data Fabric to automate validation [20].
  • Outcome: Reduced analysis time by 98%, accelerating FDA approvals by six months [19]. 

Failure: Self-Driving Scrub Machines

  • Challenge: Faulty sensor data led to frequent collisions.
  • Root cause: Noisy LiDAR data from uncalibrated IoT devices [13].
  • Fix: Applied PyOD anomaly detection and implemented daily sensor calibration [13].

Factors Influencing the Future of Data Quality for AI

  • Self-healing data pipelines: Schema drifts will be automatically corrected by AI-driven tools like Snowflake GPT-4 [19][20].
  • Synthetic data generation: Healthcare AI will employ generative adversarial networks (GANs) to generate privacy-compliant datasets [21][22].
  • AI-powered data governance: Platforms like Databricks Unity Catalog, and Amazon Macie will automate data quality rules based on machine learning [16][23].

Conclusion

Clean, comprehensive data is not just a nice-to-have requirement anymore — it’s the underpinning of reliable AI. Utilizing tools such as Ataccama for anomaly detection, TensorFlow for validation, and active learning practices to reduce bias can help combat AI failures. Developers will need to prioritize these three will be essential as real-time analytics and edge computing continue to take off in 2025.

  • Automated monitoring (e.g., Datafold for feature drift) [14][15].
  • Ethical audits to mitigate bias [9][13].
  • Synthetic data for compliance [21].

Almost all these strategies could help ensure that enterprises get reliable, unbiased, and efficient outcomes from their AI systems [24].

References 

  1. Fivetran: $406M Losses
  2. Agility PR: AI Investment Losses
  3. SDxCentral: AI Data Losses
  4. CMU: Amazon Hiring Bias
  5. ACLU: Amazon Bias
  6. Reuters: Amazon AI Bias
  7. Cmwired: Microsoft Tay
  8. Harvard: Tay Case Study
  9. Opinosis: Tay Data Issues
  10. Harvard Ethics: IBM Watson Failure
  11. CaseCentre: IBM Watson Failure
  12. Keymakr: AI Data Challenges
  13. Shelf.io: Data Quality Impact
  14. Datafold: Regression Testing
  15.  Datafold: Data Quality Tools
  16. IBM Knowledge Catalog
  17. IBM Knowledge Catalog
  18. SDxCentral: AI Data Losses
  19. Ataccama: Data Quality Platform
  20. Ataccama: Anomaly Detection
  21. EconOne: AI Data Quality
  22. Infosys: GenAI Data Quality
  23. CaseCentre: IBM Watson Failure
  24. SDxCentral: AI Data Losses
AI Data quality systems

Opinions expressed by DZone contributors are their own.

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