What is a key advantage of using batch training in machine learning?

Batch training in machine learning offers the advantage of higher computational efficiency primarily because it allows multiple training examples to be processed simultaneously. This approach leverages the capabilities of modern hardware, such as GPUs, which are designed to perform parallel computations. By processing data in batches rather than one instance at a time, the overall time taken for training is significantly reduced, as there is less overhead involved in updating model parameters frequently.

When training models, especially those using methods like gradient descent, the use of batches means that the algorithm can update weights based on the average of a group of examples rather than a single example,leading to more stable updates and convergence in many cases. This efficiency is critical for handling large datasets, as it streamlines the computational workload and can lead to quicker experimentation and deployment times.

While other choices might suggest benefits related to accuracy, memory consumption, or processing speed, these do not capture the specific efficiency gains afforded by batch processing when it comes to utilizing hardware capabilities and managing computation during the training phase.