> For the complete documentation index, see [llms.txt](https://saral.sunbird.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://saral.sunbird.org/learn/features/capture-ai-ml-training-data.md).

# Capture AI/ML Training Data

Steps how to capture field specific training data to improve accuracy of AI/ML predictions

**Saral App** internally uses AI/ML model to predict scanned layout ROIs(Region Of Interest). Current capabilities of this model is to detect **handwritten digits** and **OMR** answers. Internally model is trained with [MNIST](http://yann.lecun.com/exdb/mnist/) database. But as the handwritten digits can be sometimes field specific , this feature is handy to collect training data from production and improve accuracy of the model predictions.

**Step 1**: For a selected school , make sure **storeTrainingData** flag to be returned as true from backend API `GET /schools`.

```
{
    "schools": [
        {
            "name": "Dummy school 1",
            "schoolId": "up001",
            "state": "up",
            "district": "delhi",
            "block": "haldwani",
            "hmName": "acbc",
            "noOfStudents": "100",
            "storeTrainingData": true,
            "createdAt": "2021-12-06T05:25:38.487Z",
            "updatedAt": "2021-12-06T05:25:38.487Z"
        }
      ]
  }
```

**Step 2**: Saral frontend application will capture layout ROIs(Region of Interest) images and convert them into **Base64** images and send them as part of `PUT /saveMarks` API. Saral App also compares the actual preidictions with user overrides if any , and populate training data only if necessary. This training data can be extracted from backend to train the AI/ML model to improve accuracy on iterative fashion.

Sample request from Saral App to backend API`PUT /saveMarks`

```
{
	"_id": {
		"$oid": "619b38c8b18890002b7b186b"
	},
	"studentIdTrainingData": [
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}
```


---

# Agent Instructions
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Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://saral.sunbird.org/learn/features/capture-ai-ml-training-data.md?ask=<question>&goal=<user_goal>
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