This is a minor update that mainly made dictionary search much faster
(enabling the use of huge dictionary resources, such as named entity
lists).
CRAN v0.4.1 (Release date:
2019-11-18)
This update makes some changes to the API.
Many of the functionalities that were before provided as R6 methods
of the tCorpus are now replaced with regular functions. The R6 methods
are now only used in cases where the tCorpus is modified by
reference.
Working with the R6 methods is now optional for operations that
modify the tCorpus, such as subsetting. Before, the default approach was
to modify the tCorpus by reference, but with the option to make copies.
Now, this behavior is split up into functions and R6 methods. For
instance, instead of the R6 method ‘subset’ that changes the tCorpus by
reference, the generic subset (S3) function returns the subset without
modifying the input tCorpus. Using the R6 methods is still recommended,
but unless large corpora are used it’s not that important.
Several new features have been added, and there is (finally) a
vignette.
A versatile browse_texts function has been added that makes it easy
to create full-text browsers from a tCorpus, using token features or
annotations (e.g., search results, topics from a topic model, sentiment
scores) to highlight and navigate the texts.
The udpipe wrapper in create_tcorpus now makes persistent caches for
the last three calls, that store results for every batch (100 docs) that
has been processed. This makes it easy to parse many documents across
sessions (and continue if stuff freezes), and is overall more user
friendly.
A vignette has been added that demonstrates the main features, and
discusses the reason for and use of the R6 methods.