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Table 6 Results of varying the dictionary sizes for HMM classification

From: Mining Adverse Drug Reactions from online healthcare forums using Hidden Markov Model

 

Drug names dictionary size

Side-effects dictionary size

Both the dictionary sizes

 

reduced to half

reduced to half

reduced to half

Run

Mean

Mean

Mean

Mean

Mean

Mean

Mean

Mean

Mean

 

Precision

Recall

F-Score

Precision

Recall

F-Score

Precision

Recall

F-Score

1

0.684

0.242

0.355

0.793

0.556

0.653

0.718

0.201

0.309

2

0.692

0.246

0.360

0.781

0.554

0.645

0.730

0.196

0.306

3

0.691

0.249

0.361

0.785

0.559

0.651

0.761

0.197

0.309

4

0.670

0.245

0.358

0.787

0.559

0.652

0.734

0.200

0.311

5

0.683

0.248

0.360

0.788

0.560

0.652

0.747

0.200

0.312

6

0.685

0.247

0.361

0.790

0.557

0.650

0.724

0.200

0.306

7

0.682

0.248

0.359

0.793

0.564

0.657

0.741

0.202

0.314

8

0.687

0.247

0.362

0.784

0.556

0.650

0.742

0.200

0.309

9

0.684

0.245

0.358

0.786

0.553

0.647

0.728

0.200

0.310

10

0.685

0.244

0.353

0.787

0.564

0.654

0.710

0.200

0.307