Understanding the components of a dataset group
When creating a dataset in Amazon Forecast, you can specify its type. It can be one of the following:
- A mandatory target time series
- An optional related time series
- An optional metadata dataset
These three dataset types help you organize your whole dataset in a format that is compatible with Amazon Forecast.
When you define a dataset group, you also specify its domain: a domain specifies a schema for a common use case but does not impact the algorithms or hyperparameters used at training time. A domain is merely a convenient way to organize your dataset. Amazon Forecast provides the following predefined domains: RETAIL
, INVENTORY_PLANNING
, EC2_CAPACITY
, WORK_FORCE
, WEB_TRAFFIC
, and METRICS
. If none of these suit your use case, you can use the CUSTOM
domain and define your custom fields at dataset creation time.
When you want to train a predictor, you create up to three datasets, one of each of the types described...