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. 2015 Sep 11;1(2):e11. doi: 10.2196/publichealth.4777

Table 2.

Top terms based on TF-IDF scores.


Frequency % Total No. cases % cases TF-IDF
RT 1200 0.50% 2 25.00% 722.5
BLUCIGS 1827 0.80% 4 50.00% 550
CO 4111 1.80% 6 75.00% 513.6
HREF 559 0.20% 2 25.00% 336.6
BLU 1302 0.60% 5 62.50% 265.8
NOFOLLOW 409 0.20% 2 25.00% 246.2
REL 409 0.20% 2 25.00% 246.2
BLUCRM 272 0.10% 1 12.50% 245.6
DM 325 0.10% 2 25.00% 195.7
OT 410 0.20% 3 37.50% 174.6
BLUNATION 556 0.20% 4 50.00% 167.4
CLASS 466 0.20% 4 50.00% 140.3
SAVE 503 0.20% 5 62.50% 102.7
PWD 110 0.00% 1 12.50% 99.3
WARD 163 0.10% 2 25.00% 98.1
VAPORIZER 206 0.10% 3 37.50% 87.7
SXSW 202 0.10% 3 37.50% 86
HASHTAG 412 0.20% 5 62.50% 84.1
BLUFREEDOM 275 0.10% 4 50.00% 82.8
HTTPS 589 0.30% 6 75.00% 73.6