How to increase the size of the context?

[anirbansaha96]

When I'm printing my output using the print_answers(prediction, details=' minimal'), I'm getting an output where the context is in a way trimmed. For example:

'answer': 'Data Masking',
        'context': "cess based on a user's\n"
                   'identity,role, or execution context).\n'
                   'Dynamic Data Masking (Using Permission & Policy,\n'
                   'limits sensitive data exposure by maskin'}

In the Context Vector, I want to have the full paragraph from which this answer was retrieved as it would help in downstream tasks. What would be the easiest way to achieve this?

[tholor]

Just increase the argument context_window_sizein the FARMReader :)

haystack/haystack/reader/farm.py

Line 35 in 9733e0b

context_window_size: int = 150,

[anirbansaha96]

To implement this do I need to fork the repo change it in the source code, and then use this repo or is this a parameter we can directly change when we, for example, initialize the reader while working.

[tholor]

You can pass the argument when you initialize the reader, just like
reader = FARMReader(model_name_or_path="deepset/roberta-base-squad2", use_gpu=True, context_window_size=300)

If you are using Haystack via the REST API, you can simply set an environment variable CONTEXT_WINDOW_SIZE or change the value in rest_api/config.py.

[anirbansaha96]

Yes, thank you for the solution.