Research Article

Natural Language Processing Based Instrument for Classification of Free Text Medical Records

Table 5

Result evaluation for Level II (shrink and classic case/SVM).

Subclass/level 2
Shrink caseClassic case
AccErrAccErr

Ultrasonography (document number)
Liver (784)0,6100,3980,4810,8000,2000,7490,5280,6190,8600,140
Biliary system (957)0,4160,3600,3860,7530,2470,5720,4360,4950,7830,217
Kidney and urinary system (536)0,8060,6350,7110,9320,0680,9420,8130,8730,9710,029
Gynecologic (942)0,7810,7380,7590,9090,0910,9080,8710,8890,9580,042
Thyroid (851)0,8050,7520,7780,9240,0760,8250,7940,8090,9360,064
Breast (531)0,7930,5940,6790,9230,0770,9040,7690,8310,9620,038
Vascular Doppler (543)0,8880,6660,7610,9410,0590,8660,7210,7870,9500,050

X-ray (document number)
Chest (849)0,8020,6290,7050,8920,1080,8880,8520,8700,9570,043
Abdomen (1057)0,7290,6340,6780,8610,1390,8550,7620,8060,9170,083
Spine (946)0,7850,5210,6260,8310,1690,8890,7740,8270,9330,067
Limbs (612)0,8220,4030,5410,8380,1620,9900,7740,8690,9650,035
Esophagus and stomach (1224)0,7140,6790,6960,8550,1450,9050,8810,8930,9490,051
Large and small bowels (574)0,7960,6030,6860,9210,0790,9110,9440,9270,9840,016