In production ground truth is often delayed or absent. Traditional data drift detection techniques are noisy and do not only alert to changes that impact model performance.
Performance estimation allows you to estimate performance metrics (ROC-AUC, F1, RMSE, etc) without ground truth. Giving you a single metric to monitor, optimize and communicate about your models in production.
Some specific examples of when you could benefit from estimating your performance include:
When predicting loan defaults, to estimate model performance before the end of the repayment periods.
In demand forecasting, the ground truth demand will only be known after the forecast window has passed. Esimating performance lets you know how your model is performaning in real time.
When performing sentiment analysis, targets may be entirely unavailable without significant human effort, so estimation is the only feasible way to attain metrics.
Highlights
Estimate the performance of machine learning models in production when targets are absent or delayed.
NannyML supports Confidence Based Performance Estimation (CBPE) for performance estimation of binary and multiclass classification models.
NannyML supports Direct Loss Estimation (DLE) for performance estimation of regression models.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
You pay by the hour based on the compute instance you run. Charges cover three usage types: algorithm training, batch inference, and real-time inference. Each type is priced across a range of instance families and sizes, from the ml.m5.large up to the ml.m5.24xlarge. Larger instances hold more compute and memory. Your total cost depends on which instance you select, which usage type you run, and how many host-hours you consume. There is no fixed commitment; billing scales with the hours each instance runs.
Top-of-mind questions for buyers
What is one host-hour, and how is it counted for billing?
A host-hour is one hour that a chosen compute instance runs. You pay for each instance while it is active. Counting starts when the instance launches for training or inference and stops when it shuts down. Larger instances hold more compute and memory, so their hourly rate is higher.
How do the training and inference charges combine on my bill?
Training, batch inference, and real-time inference bill independently by host-hours. Each runs on its own instance and meters its own hours. Your invoice adds the host-hours from every usage type and instance you run. No single charge is bundled with another; each accrues separately based on running time.
What is the difference between batch inference and real-time inference billing?
Both meter host-hours on the instance you select. Batch inference runs predictions on stored datasets in scheduled jobs, so you pay only while the batch job runs. Real-time inference keeps an endpoint running to serve live requests, so charges accrue for as long as that endpoint stays active.
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An Amazon SageMaker algorithm is a machine learning model that requires your training data to make predictions. Use the included training algorithm to generate your unique model artifact. Then deploy the model on Amazon SageMaker for real-time inference or batch processing. Amazon SageMaker is a fully managed platform for building, training, and deploying machine learning models at scale.
Deploy the model on Amazon SageMaker AI using the following options:
Algorithm training
Before deploying the model, train it with your data using the algorithm training process. You're billed for software and SageMaker infrastructure costs only during training. Duration depends on the algorithm, instance type, and training data size. When training completes, the model artifacts save to your Amazon S3 bucket. These artifacts load into the model when you deploy for real-time inference or batch processing. For more information, see Use an Algorithm to Run a Training Job .
Real-time inference
Deploy the model as an API endpoint for your applications. When you send data to the endpoint, SageMaker processes it and returns results by API response. The endpoint runs continuously until you delete it. You're billed for software and SageMaker infrastructure costs while the endpoint runs. AWS Marketplace models don't support Amazon SageMaker Asynchronous Inference. For more information, see Deploy models for real-time inference .
Batch transform
Deploy the model to process batches of data stored in Amazon Simple Storage Service (Amazon S3). SageMaker runs the job, processes your data, and returns results to Amazon S3. When complete, SageMaker stops the model. You're billed for software and SageMaker infrastructure costs only during the batch job. Duration depends on your model, instance type, and dataset size. AWS Marketplace models don't support Amazon SageMaker Asynchronous Inference. For more information, see Batch transform for inference with Amazon SageMaker AI .
Version release notes
Release Production Version!
Additional details
Inputs
Outputs
Hyperparameters
Channel specifications
Usage instructions
Sample notebooks
Inputs
Summary
The input should be a CSV file. It should contain the names of the columns in the first row.
The required number of rows depend on the chunking method defined during training.
Limitations for input type
The first line of the file should be the columns names, and it should contain the columns defined on the "parameters" during training.
For realtime, the maximum size of the input data per invocation is 6 MB.
For batch, the maximum size of the input data per invocation is 100 MB.
The following table describes supported input data fields for real-time inference and batch transform.
Field name
Description
Constraints
Required
y_pred
This column type is required on all machine learning problem types. The values are the predicted labels for classification and predicted number for regression.
Notice that the column name mapped to this column type on the "parameters" hyperparameter is defined during training, so you can have a different name for it on your CSV file.
Type: FreeText
Limitations: For classification data type can be text or integer but for regression it will be continuous.
Yes
y_pred_proba
This column type is required on classification problem types. The values are the predicted scores or probabilities for a specific class.
Notice that the column name mapped to this column type on the "parameters" hyperparameter is defined during training, so you can have a different name for it on your CSV file.
Default value: No default values
Type: Continuous
No
feature_column_names
This input refers to a list of required columns when using the performance estimation algorithm on a regression problem.
The list should include all the column names that should be consider features of the model whose performance we are predicting.
Default value: No default values
Type: FreeText
Limitations: The values are the features of your model. These can be categorical or continuous. NannyML identifies this based on their declared pandas data types.
No
y_true
This column type contains actual model targets and is required on all machine learning problem types for the training data only.
Notice that the column name mapped to this column type on the "parameters" hyperparameter is defined during training, so you can have a different name for it on your CSV file.
[Optional] If you include this column on your inference data, realized performance will also be calculated separately to estimated performance to facilitate easy comparison.
Default value: No default values
Type: FreeText
Limitations: For classification data type can be text or integer but for regression it will be continuous.
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