How to find out what led to a DependencyMatcher result?

[songyang-dev]

Using DependencyMatcher, we get an answer with

matches = matcher(doc)

The documentation says you can read which pattern : List[Dict] led to this match.

matched_rule = pattern[i]["RIGHT_ID"]

where i is the token id from

print(matches) # [(4851363122962674176, [6, 0, 10, 9])]
# Each token_id corresponds to one pattern dict
match_id, token_ids = matches[0]
for i in range(len(token_ids)):
    print(pattern[i]["RIGHT_ID"] + ":", doc[token_ids[i]].text)

What should I do if I have many patterns added to the matcher? The example above assumes only one pattern element inside the add method, eg.

matcher.add("my pattern", [pattern])

I'd like to have many pattern variables.

matcher.add("copula", [copula_pattern, expletive_pattern, null_subject_pattern])

And I want to know which pattern led to a given match result.

[polm]

One option here is, you can use a pattern similar to what the EntityRuler does internally for the other matchers, and use a multi-part key. So you can have copula|base, copula|expletive, copula|null, and first process the results individually, and then group them by the key prefix (splitting the key on the |).

[songyang-dev]

you are suggesting that I call separated add methods with different arguments?

[polm]

Yes, just add your rules in multiple calls to add with different labels.