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. 2018 Mar 14;20(3):e85. doi: 10.2196/jmir.9222

Table 2.

Description of the document-term matrix (DTM) dissemination thresholds.

Drug Term frequency before
processing, n
Sparsity before
processing, n (%)
Sparsity threshold
per token, n (%)
Term frequency after
processing, n
Sparsity after
processing, n (%)
Escitalopram 155,883 155,774 (99.93) 3626.275 (99.35) 1497 151,097 (96.93)
Aripiprazole 81,371 81,281 (99.89) 2147.77 (99.25) 1062 78,922 (96.99)