Artificial Intelligence/Robotoff/Adding new detections

Finding opportunities

1. Download the OCR JSONL

2. grep -o '\<WORD\>' | wc -l

Using REGEXes

https://github.com/openfoodfacts/robotoff/tree/master/robotoff/insights/ocr

Add a function to add the desired match

• Choose the relevant file within the insights/ocr directory (in this case: https://github.com/openfoodfacts/robotoff/blob/master/robotoff/insights/ocr/packager_code.py)

• Write the function

def process_fsc_match(match) -> str:
    fsc_code = match.group(1)
    return "FSC-{}".format(fsc_code).upper()

Add the function to the processing pipeline to plug it to Robotoff

This happens in the same file.

PACKAGER_CODE: Dict[str, OCRRegex] = {
    "fr_emb": OCRRegex(
        re.compile(r"emb ?(\d ?\d ?\d ?\d ?\d) ?([a-z])?(?![a-z0-9])"),
        field=OCRField.text_annotations,
        lowercase=True,
        processing_func=process_fr_emb_match,
    ),
    "fsc": OCRRegex(
        re.compile(r"fsc.? ?(c\d{6})"),
        field=OCRField.text_annotations,
        lowercase=True,
        processing_func=process_fsc_match,
    ),
    "eu_fr": OCRRegex(
        re.compile(

Using Flashtext

https://github.com/openfoodfacts/robotoff/tree/master/data/ocr

Choose a file matching the detection you want to add

In this example: https://github.com/openfoodfacts/robotoff/blob/master/data/ocr/brand_logo_annotation.txt

alnatura||Alnatura
Andros France||Andros
andros||Andros