November 2017
Beginner to intermediate
366 pages
7h 59m
English
Content preview from R Data Analysis Projects
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Supervised learning
In a supervised learning scenario, we need to provide the algorithm with a set of training tuples. Each tuple has our features from record pairs and a label classifying the tuple as either a match or no match. In our case, we don't have any labeled data.
The RecordLinkage package provides a numeric vector called identity.RLdata500, which stores the matching record number for every record number. We can pass this using an identity parameter to compare.dedup:
> str(identity.RLdata500) num [1:500] 34 51 115 189 72 142 162 48 133 190 ...> str(identity.RLdata500) num [1:500] 34 51 115 189 72 142 162 48 133 190 ...> rec.pairs <- compare.dedup(RLdata500+ ,identity = identity.RLdata500+ ,blockfld = list(1, 5:7)+ )> head(rec.pairs$pairs) ...
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