Table 2 Feature classes remaining after the RFE. Examples for features and feature classes remaining after 64 iterations. In every round, we remove the 10% of all features having the lowest weight. After the 64 iterations, only 0.12% of all features remain. We show the upper, middle, and lower weighted features in this table. High weighted features are more likely to apply to positive samples (NEWGENE), low weighted features to negative samples. Names in bold indicate binary orthographic features and the gazetteer (Gaz), in contrast to single features, like a particular 3-gram. The feature named special in Table 1 actually consists of four parts, two of which are present in the list of top ranking features.
From: Systematic feature evaluation for gene name recognition
Feature | Class | Weight | Feature | Class | Weight |
|---|---|---|---|---|---|
Gaz | 1.497386 | AACC | 4-gram | 0.088738 | |
insulin | Token | 0.632708 | D2-m | 4-gram | -0.022443 |
protein | Token | 0.628168 | Stai | 4-gram | -0.082046 |
kinase | Token | 0.608392 | mig | 3-gram | -0.083135 |
human | Token | 0.536695 | Reve | 4-gram | -0.096548 |
proteins | Token | 0.535368 | ing | 3-gram | -0.099499 |
greek | 0.498111 | GnT | Token | -0.099619 | |
combi | 0.489201 | owl | 3-gram | -0.100996 | |
serum | Token | 0.480326 | 231 | Token | -0.104751 |
lowerUpper | 0.457806 | ZII | Token | -0.105133 | |
singleCap | 0.438028 | had | Token | -0.106545 | |
factor | Token | 0.438028 | we | Token | -0.107104 |
wild-type | Token | 0.389359 | [..] | ||
initCaps | 0.366269 | that | Token | -0.174203 | |
mutants | Token | 0.340689 | scre | 4-gram | -0.175351 |
genes | Token | 0.340352 | OH | Token | -0.179445 |
promoter | Token | 0.327395 | ims | 3-gram | -0.182513 |
receptor | Token | 0.323412 | be | Token | -0.186265 |
polymerase | Token | 0.305972 | . | Token | -0.188904 |
complex | Token | 0.292019 | To | Token | -0.189576 |
receptors | Token | 0.292019 | acyc | 4-gram | -0.191766 |
c-myc | Token | 0.292019 | the | Token | -0.192838 |
sites | Token | 0.243349 | off | Token | -0.197588 |
mutant | Token | 0.243349 | rank | Token | -0.198915 |
domain | Token | 0.231541 | Dar | Token | -0.205479 |
sequences | Token | 0.216691 | ( | Token | -0.206405 |
sequence | Token | 0.216683 | omit | 4-gram | -0.220064 |
domain | Token | 0.215116 | nost | 4-gram | -0.223077 |
specialnumber | 0.205077 | spit | 4-gram | -0.238335 | |
isoforms | Token | 0.194679 | allCaps | -0.243183 | |
specialupperCase | 0.179926 | oped | 4-gram | -0.246457 | |
capMixLetters | 0.179394 | The | Token | -0.246535 | |
[..] | aged | Token | -0.253814 | ||
lare | 4-gram | 0.105354 | are | Token | -0.267228 |
bicu | 4-gram | 0.103185 | ssif | 4-gram | -0.272211 |
bea | 3-gram | 0.100539 | encoding | Token | -0.447471 |
[ | Token | 0.097113 | which | Token | -0.535368 |
ntei | 4-gram | 0.093310 | activate | Token | -0.535368 |
GTTA | 4-gram | 0.088738 | contain | Token | -0.640844 |