High performance address matching using a pre-trained Splink model.
Assuming you have two duckdb dataframes in this format:
unique_id | address_concat | postcode |
---|---|---|
1 | 123 Fake Street, Faketown | FA1 2KE |
2 | 456 Other Road, Otherville | NO1 3WY |
... | ... | ... |
Match them with:
from uk_address_matcher.cleaning_pipelines import (
clean_data_using_precomputed_rel_tok_freq,
)
from uk_address_matcher.splink_model import _performance_predict
df_1_c = clean_data_using_precomputed_rel_tok_freq(df_1, con=con)
df_2_c = clean_data_using_precomputed_rel_tok_freq(df_2, con=con)
linker, predictions = _performance_predict(
df_addresses_to_match=df_1_c,
df_addresses_to_search_within=df_2_c,
con=con,
match_weight_threshold=-10,
output_all_cols=True,
include_full_postcode_block=True,
)
Initial tests suggest you can match ~ 1,000 addresses per second against a list of 30 million addresses on a laptop.
Refer to the example, which has detailed comments, for how to match your data.
See an example of comparing two addresses to get a sense of what it does/how it scores
Run an interactive example in your browser:
Match 5,000 FHRS records to 21,952 companies house records in < 10 seconds.