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#SAFETY #AI #SIMILARITY

Semantic Similarity in the Artificial "Brain"

15 December 2024

Have you ever tried finding similar incident reports in your safety database by searching for exact keywords? If so, you’ve probably noticed how frustrating it can be. An incident described as a “worker tripped on loose cables” might not show up when searching for “employee stumbled over exposed wiring” — even though they’re essentially the same hazard.

This is where semantic similarity search comes in. Unlike traditional keyword searching, semantic search understands the meaning behind words, not just the words themselves.

How Does It Work?

Think of semantic search like having a really smart safety expert who can instantly read through thousands of reports and understand when incidents are related, even if they’re described differently, or in a different language. Here’s what’s happening behind the scenes:

First, the system converts text into what we call “embeddings” — essentially turning words and phrases into long lists of numbers that capture their meaning. When someone writes “worker fell from ladder,” the system doesn’t just see those exact words — it understands concepts like “height,” “falling hazards,” and “access equipment.”

When you search for similar incidents, the system compares these numerical representations to find reports that are conceptually related, even if they use different terminology. It’s like finding songs in the same genre rather than just songs with the same title.

Real-World Safety Applications

This technology is transforming how organizations learn from safety incidents. Here’s why it matters:

Finding Hidden Patterns
Let’s say you have an incident where “an operator received chemical burns while transferring material between containers.” A semantic search might reveal similar incidents described as “splash injury during decanting,” “exposure during liquid transfer,” or “chemical contact while pouring.” By surfacing these connections, you can identify recurring risks that traditional searches might miss.

Learning from Near Misses
Near misses often contain valuable warning signs, but they’re typically described in varied ways. Semantic search can help connect a near miss where “employee almost contacted energized equipment” with previous incidents involving “close calls with live electrical components” or “narrowly avoided shock hazard.”

Proactive Hazard Identification
When a new hazard is reported, semantic search can quickly find similar situations across different locations or departments. This helps organizations spot emerging risks and apply lessons learned before incidents occur. For example, if one site reports issues with a particular type of valve, the system can find similar valve-related concerns reported elsewhere, even if they’re described differently.

Breaking Down Silos
Different teams and cultures use different terminology to describe similar issues. Maintenance might report a “mechanical failure,” while operations describes the same type of event as “equipment malfunction.” Semantic search bridges these language gaps, helping organizations build a more complete picture of their risks.

Going Beyond Keywords
Think about how many ways people might describe someone getting hurt while lifting something heavy: “back strain during manual handling,” “musculoskeletal injury while moving materials,” “pulled muscle during lift,” etc. Semantic search understands these are all related, making it much easier to study patterns and prevent future incidents.

The Future of Safety at Hypertrain.ai

As organizations collect more safety data, the ability to find meaningful connections becomes increasingly important. Semantic similarity search helps turn this mountain of information into actionable insights by:
- Identifying recurring hazards that might be missed by traditional searches
- Connecting related incidents across different locations and departments
- Helping safety professionals learn from past experiences more effectively
- Supporting more proactive risk management

By understanding the meaning behind safety reports rather than just matching keywords, semantic search helps organizations spot risks earlier and prevent incidents before they occur. It’s like having a tireless safety expert who can instantly recall and connect every incident, near miss, and hazard report in your organization’s history.

In an era where safety data is increasingly abundant, semantic similarity search isn’t just a nice-to-have — it’s becoming essential for organizations serious about learning from their safety experiences and protecting their workers. That’s why semantic similarity is a standard feature that is always included at Hypertrain.ai.

About the Author

Eric Morris is an accomplished safety solutions expert with over 18 years of experience in designing and building innovative safety systems. As an Electrical Engineer with a Master's degree in Artificial Intelligence, he brings a unique blend of technical expertise and cutting-edge AI knowledge to the field of workplace safety. Eric is the Founder of Hypertrain.ai.