Getting Data Ready for AI/ML: Preparing Your Data for Machine Learning

Artificial intelligence (AI) and machine learning (ML) are transforming the landscape in many area areas including chemistry and biology. Google's DeepMind made waves with AlphaFold, a tool that predicts protein structures with remarkable accuracy. The newest iteration, AlphaFold3, advances this by predicting interactions between complex proteins and other molecules in the protein data bank.

But how can you harness the potential of AI for your research? Is it as simple as uploading your data files to an algorithm and letting it perform its AI wonders?

The answer is no.

While AI can help identify patterns, recognize features, and make predictions, the algorithm needs to be trained on high-quality data. Even sophisticated AI models like AlphaFold require consistently annotated new data to function correctly.

In this article, we will explore:

  • What constitutes "high-quality data"?
  • How to overcome common challenges related to data findability, accessibility, interoperability, and reusability.
  • How to prepare your data for AI applications.

What Constitutes High-Quality Data?

You may have heard the phrase "garbage in, garbage out" when discussing AI. If an AI algorithm is trained on poor-quality data, the insights it provides will be minimal or misleading. High-quality data must be accurate, complete, relevant, clean, and consistently annotated. Here are some key points to consider:

  • Accuracy: Ensure your data is correct, consistent, and error-free.
  • Completeness: Your dataset should be comprehensive, with no missing data points. Including negative data can also inform the algorithm.
  • Relevance: Keep your datasets pertinent to the key variables you are monitoring to help the algorithm learn meaningful relationships.
  • Cleanliness: Data should be processed—normalized, duplications removed, and gaps and outliers addressed.
  • Consistent Annotation: Data and metadata must be correctly and consistently labelled to help the algorithm identify each variable.
  • Volume: Although quality is more important than quantity, AI models still require substantial amounts of training data to ensure accuracy.

Moreover, the datasets must represent real-world data and be balanced to avoid biases. While the timeliness of data is often emphasized, in scientific research, historical datasets can still be high-quality unless there has been a significant technological shift.

Common Challenges Researchers Face

Assuming you have robust datasets, preparing your data for AI is not straightforward. Effective AI implementation requires collaboration among researchers, programmers, and data scientists. The data must be meaningful to all parties involved.

Common data management issues include findability, accessibility, interoperability, and reusability. The FAIR Principles, published by the Wilkinson lab in 2016, provide guidelines to address these issues. Large databases like Genbank and UniProt now follow these principles, paving the way for their use in AI algorithms.

What is FAIR Data?

  • Findability: Data should be easy to locate for both humans and machines. Proper naming conventions are crucial.
  • Accessibility: Data should be easily accessible with minimal barriers while respecting security and regulatory requirements.
  • Interoperability: Standardizing datasets for integration with other datasets and systems is essential.
  • Reusability: Clear documentation on data collection, processing, and annotation ensures future usability.

Applying these standardization principles across all experiments and datasets generated by various researchers and lab instruments is challenging. Many labs still operate with pen and paper, sticky notes, USB drives, and computers, making data management fragmented and inconsistent.

Implementing FAIR principles improves data quality and accessibility, which are crucial for extracting valuable insights using AI tools.

Preparing for AI Begins with Data Management

Automating data management from capture to storage with specialized software is a good start when considering AI tools. Software can alleviate many manual burdens and help adhere to FAIR principles.

For example, electronic lab notebooks (ELNs), lab information management systems (LIMS), and instrument-specific software already annotate experiments and capture data. Standardizing naming conventions within these systems will enhance