  The capture-recapture method can be applied to measure the coverage of
administrative and big data sources, in official statistics. In its basic form,
it involves the linkage of two sources while assuming a perfect linkage and
other standard assumptions. In practice, linkage errors arise and are a
potential source of bias, where the linkage is based on quasi-identifiers.
These errors include false positives and false negatives, where the former
arise when linking a pair of records from different units, and the latter arise
when not linking a pair of records from the same unit. So far, the existing
solutions have resorted to costly clerical reviews, or they have made the
restrictive conditional independence assumption. In this work, these
requirements are relaxed by modeling the number of links from a record instead.
The same approach may be taken to estimate the linkage accuracy without
clerical reviews, when linking two sources that each have some undercoverage.
