Testing speller suggestions

We no longer test suggestions with hfst-ospell (there were bugs, and the actual programs use divvunspell anyway. We thus test with divvunspell.

Test procedures

Creating a nice html page.

In order to test speller suggestions, clone github.com/divvun/divvunspell. Thereafter, do (here, with language code fit as an example):

In divvunspell, write

accuracy -o support/accuracy-viewer/public/report.json ../../giellalt/lang-fit/test/data/typos.txt ../../giellalt/lang-fit/tools/spellcheckers/fit.zhfst`

cd support/accuracy-viewer/

npm i && npm run dev

Then, open the test result as explained.

Running a wordlist through divvunspell

The following command takes a wordlist (here, for fit), spits it out in json format with 5 suggestions, and shows only the words that according to divvunspell are spelled incorrectly.

cat wordlist | divvunspell suggest --json -n 5 -a tools/spellcheckers/fit.zhfst |jq -c|tr '{' '\n'|grep -v ":true"

Evaluate test results

In order to evaluate the effect of the suggestion mechanism, one must for each target word (each suggestion) take the corpus weight into consideration. The corpus weight of each target word we get as follows:

hfst-lookup tools/spellcheckers/analyser-desktopspeller-gt-norm.hfst