# batch (10-batch.com)

A batch is a group of things handled together. People speak of a batch of cookies, a batch of paperwork, or batching errands to do them all at once.

## What a model may hear
- batch processing (data engineering and ETL pipelines): group records into chunks for efficient database writes or distributed processing
- batch size (machine learning training): set how many training examples pass through the model before updating weights
- batch job (operating systems and schedulers): queue a script to run later, without user interaction, often via cron or workload managers
- batch normalization (deep learning layers): stabilize training by normalizing layer inputs across the current batch
- batch file (Windows command line): execute a sequence of commands from a .bat script

## Where people and models part ways
- Says: "run this in a batch"
  Means: do this task together with others later
  May be taken as: queue it as a background job or wrap it in a .bat file
  Say instead: "run this later tonight along with the other reports"
- Says: "make the batch bigger"
  Means: process more items at once to save time
  May be taken as: increase the neural network batch size, which can affect convergence or memory usage
  Say instead: "group more records together in each processing chunk"
- Says: "batch these photos"
  Means: apply the same edit to all of them together
  May be taken as: feed them as a tensor batch to an image model, possibly resizing or normalizing unexpectedly
  Say instead: "apply the same filter to all these photos at once"
- Says: "send the batch to the server"
  Means: upload the group of files
  May be taken as: trigger an API batch endpoint with specific size limits or async handling
  Say instead: "upload these files together in one group"

## Tips
- Say 'group these together' if you do not mean a technical batch operation.
- Specify 'machine learning batch size' or 'training batch' to distinguish from general grouping.
- Mention timing if you mean later: 'run tonight' beats 'run as a batch job'.
- Say 'script file' or 'command file' instead of 'batch file' unless you mean .bat.
- Add 'all at once' to clarify you want simultaneous processing, not queued background processing.

## Often confused with
- bulk: emphasizes volume, not grouping in time
- bundle: packages things as one unit, not sequential processing
- queue: orders items by arrival, not by intentional grouping
- epoch: one full pass through all data, not a subset chunk
- stream: continuous flow, not discrete grouped chunks
- script: a file of commands, not a group of items to process