pytorch/text

Adding vocab to field object

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#378 opened on Sep 8, 2018

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 (12 comments) (1 reaction) (0 assignees)Python (3,396 stars) (822 forks)batch import
enhancementhelp wanted

Description

Hi Everyone,

Is there any way of adding more vocabulary to a Field object that already has had its vocab built?

for example if at one point I have run this sort of code:

TEXT = field()
TEXT.build_vocab(dataset_a)

Is it possible to add vocab to TEXT from another dataset without erasing the current vocab built from dataset_a?

Thanks!

Contributor guide

Tech stack
python
Domain
data
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
familiarity with torchtext Fieldbasic vocabulary concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the current Field.build vocab implementation to see if it can be modified to allow incremental vocabulary updates. Review comments in the issue for suggested approaches. Consider adding a method like `extend vocab` that merges new words into the existing vocab without clearing the existing ones.
Adding vocab to field object · pytorch/text#378 | Good First Issue