# Appendix A

## Number of papers per document class, after class merges

<table><thead><tr><td>Document class</td><td>Number of papers</td></tr></thead><tbody><tr><td>other</td><td>31801</td></tr><tr><td>revtex4</td><td>17256</td></tr><tr><td>amsart/amsproc</td><td>15329</td></tr><tr><td>ieeeconf/ieeetran</td><td>9494</td></tr><tr><td>elsarticle</td><td>3903</td></tr><tr><td>llncs/svmult/svproc</td><td>3183</td></tr><tr><td>mn2e/mnras</td><td>3031</td></tr><tr><td>aastex6/aastex61/aastex62</td><td>2282</td></tr><tr><td>acmart</td><td>2034</td></tr><tr><td>aa</td><td>1541</td></tr><tr><td>svjour/svjour3</td><td>1434</td></tr><tr><td>iopart/jpconf</td><td>1228</td></tr><tr><td>emulateapj</td><td>1030</td></tr><tr><td>pos</td><td>559</td></tr><tr><td>scartcl</td><td>484</td></tr><tr><td>aastex</td><td>445</td></tr><tr><td>report/wlscirep</td><td>394</td></tr><tr><td>iau/jfm</td><td>332</td></tr><tr><td>imsart</td><td>330</td></tr><tr><td>lipics</td><td>320</td></tr><tr><td>achemso</td><td>306</td></tr><tr><td>spie</td><td>284</td></tr><tr><td>ws</td><td>249</td></tr><tr><td>siamart171218</td><td>220</td></tr><tr><td>eptcs</td><td>183</td></tr><tr><td>mdpi</td><td>178</td></tr><tr><td>siamltex</td><td>175</td></tr><tr><td>webofc</td><td>174</td></tr><tr><td>sig</td><td>146</td></tr><tr><td>bmvc2k</td><td>134</td></tr><tr><td>cms</td><td>129</td></tr><tr><td>book</td><td>122</td></tr><tr><td>sigma</td><td>113</td></tr></tbody></table>
# Appendix B

Distributions of the hand-designed
features, for each document class
(from feature 1 to feature 5)
# Appendix B

Distributions of the hand-designed
features, for each document class
(from feature 1 to feature 5)
<figure><img src="image_11.png" /></figure>
<figure><img src="image_11.png" /></figure>
<figure><img src="image_12.png" /></figure>
<figure><img src="image_12.png" /></figure>
<figure><img src="image_13.png" /></figure>
<figure><img src="image_13.png" /></figure>
<figure><img src="image_14.png" /></figure>
<figure><img src="image_14.png" /></figure>
<figure><img src="image_15.png" /></figure>
<figure><img src="image_15.png" /></figure>