Models that learn from data, not rules written by hand
Machine learning is the practice of building systems that improve at a task by learning patterns from data, rather than following a fixed set of hand-written rules. Instead of programming every case explicitly, a model is trained on examples and learns to generalize recognizing a pattern in a meeting room camera feed, predicting which transactions look fraudulent, or ranking which support ticket needs attention first.
The gap between a machine learning model that works in a notebook and one that works in production is where most projects fail. A model needs to handle inputs it wasn't trained on, degrade gracefully when it's uncertain, and stay fast enough to run in a real request path none of which show up in an accuracy score on a training set.
We treat machine learning as an engineering discipline, not a research exercise: models are wrapped in input validation, monitored in production like any other service, and paired with human-reviewable fallbacks when confidence is low. Our meeting room occupancy analytics work is a direct example person-detection models processing live camera frames, with tracked confidence scores feeding a costing engine that a business actually relies on.