| 1 | /*
|
|---|
| 2 | * StopwordsGerman.java
|
|---|
| 3 | * Copyright (C) 2001 Eibe Frank
|
|---|
| 4 | *
|
|---|
| 5 | * This program is free software; you can redistribute it and/or modify
|
|---|
| 6 | * it under the terms of the GNU General Public License as published by
|
|---|
| 7 | * the Free Software Foundation; either version 2 of the License, or
|
|---|
| 8 | * (at your option) any later version.
|
|---|
| 9 | *
|
|---|
| 10 | * This program is distributed in the hope that it will be useful,
|
|---|
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 13 | * GNU General Public License for more details.
|
|---|
| 14 | *
|
|---|
| 15 | * You should have received a copy of the GNU General Public License
|
|---|
| 16 | * along with this program; if not, write to the Free Software
|
|---|
| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|---|
| 18 | */
|
|---|
| 19 |
|
|---|
| 20 | import java.util.*;
|
|---|
| 21 |
|
|---|
| 22 | /**
|
|---|
| 23 | * Class that can test whether a given string is a stop word.
|
|---|
| 24 | * Lowercases all words before the test.
|
|---|
| 25 | *
|
|---|
| 26 | * This list of German stop words has been obtained from
|
|---|
| 27 | * http://snowball.tartarus.org/german/stop.txt
|
|---|
| 28 | *
|
|---|
| 29 | * But I have deleted/changed some words that I haven't seen before.
|
|---|
| 30 | *
|
|---|
| 31 | * @author Eibe Frank ([email protected])
|
|---|
| 32 | * @version 1.0
|
|---|
| 33 | */
|
|---|
| 34 | public class StopwordsGerman extends Stopwords {
|
|---|
| 35 |
|
|---|
| 36 | /** The hashtable containing the list of stopwords */
|
|---|
| 37 | private static Hashtable m_Stopwords = null;
|
|---|
| 38 |
|
|---|
| 39 | static {
|
|---|
| 40 |
|
|---|
| 41 | if (m_Stopwords == null) {
|
|---|
| 42 | m_Stopwords = new Hashtable();
|
|---|
| 43 | Double dummy = new Double(0);
|
|---|
| 44 |
|
|---|
| 45 | m_Stopwords.put("aber", dummy);
|
|---|
| 46 |
|
|---|
| 47 | m_Stopwords.put("alle", dummy);
|
|---|
| 48 | m_Stopwords.put("allem", dummy);
|
|---|
| 49 | m_Stopwords.put("allen", dummy);
|
|---|
| 50 | m_Stopwords.put("aller", dummy);
|
|---|
| 51 | m_Stopwords.put("alles", dummy);
|
|---|
| 52 |
|
|---|
| 53 | m_Stopwords.put("als", dummy);
|
|---|
| 54 | m_Stopwords.put("also", dummy);
|
|---|
| 55 | m_Stopwords.put("am", dummy);
|
|---|
| 56 | m_Stopwords.put("an", dummy);
|
|---|
| 57 |
|
|---|
| 58 | m_Stopwords.put("ander", dummy);
|
|---|
| 59 | m_Stopwords.put("andere", dummy);
|
|---|
| 60 | m_Stopwords.put("anderem", dummy);
|
|---|
| 61 | m_Stopwords.put("anderen", dummy);
|
|---|
| 62 | m_Stopwords.put("anderer", dummy);
|
|---|
| 63 | m_Stopwords.put("anderes", dummy);
|
|---|
| 64 | m_Stopwords.put("anderm", dummy);
|
|---|
| 65 | m_Stopwords.put("andern", dummy);
|
|---|
| 66 | m_Stopwords.put("anders", dummy);
|
|---|
| 67 |
|
|---|
| 68 | m_Stopwords.put("auch", dummy);
|
|---|
| 69 | m_Stopwords.put("auf", dummy);
|
|---|
| 70 | m_Stopwords.put("aus", dummy);
|
|---|
| 71 | m_Stopwords.put("bei", dummy);
|
|---|
| 72 | m_Stopwords.put("bin", dummy);
|
|---|
| 73 | m_Stopwords.put("bis", dummy);
|
|---|
| 74 | m_Stopwords.put("bist", dummy);
|
|---|
| 75 | m_Stopwords.put("da", dummy);
|
|---|
| 76 | m_Stopwords.put("damit", dummy);
|
|---|
| 77 | m_Stopwords.put("dann", dummy);
|
|---|
| 78 |
|
|---|
| 79 | m_Stopwords.put("der", dummy);
|
|---|
| 80 | m_Stopwords.put("den", dummy);
|
|---|
| 81 | m_Stopwords.put("des", dummy);
|
|---|
| 82 | m_Stopwords.put("dem", dummy);
|
|---|
| 83 | m_Stopwords.put("die", dummy);
|
|---|
| 84 | m_Stopwords.put("das", dummy);
|
|---|
| 85 |
|
|---|
| 86 | m_Stopwords.put("da\u00df", dummy);
|
|---|
| 87 |
|
|---|
| 88 | m_Stopwords.put("derselbe", dummy);
|
|---|
| 89 | m_Stopwords.put("derselben", dummy);
|
|---|
| 90 | m_Stopwords.put("denselben", dummy);
|
|---|
| 91 | m_Stopwords.put("desselben", dummy);
|
|---|
| 92 | m_Stopwords.put("demselben", dummy);
|
|---|
| 93 | m_Stopwords.put("dieselbe", dummy);
|
|---|
| 94 | m_Stopwords.put("dieselben", dummy);
|
|---|
| 95 | m_Stopwords.put("dasselbe", dummy);
|
|---|
| 96 |
|
|---|
| 97 | m_Stopwords.put("dazu", dummy);
|
|---|
| 98 |
|
|---|
| 99 | m_Stopwords.put("dein", dummy);
|
|---|
| 100 | m_Stopwords.put("deine", dummy);
|
|---|
| 101 | m_Stopwords.put("deinem", dummy);
|
|---|
| 102 | m_Stopwords.put("deinen", dummy);
|
|---|
| 103 | m_Stopwords.put("deiner", dummy);
|
|---|
| 104 | m_Stopwords.put("deines", dummy);
|
|---|
| 105 |
|
|---|
| 106 | m_Stopwords.put("denn", dummy);
|
|---|
| 107 |
|
|---|
| 108 | m_Stopwords.put("derer", dummy);
|
|---|
| 109 | m_Stopwords.put("dessen", dummy);
|
|---|
| 110 |
|
|---|
| 111 | m_Stopwords.put("dich", dummy);
|
|---|
| 112 | m_Stopwords.put("dir", dummy);
|
|---|
| 113 | m_Stopwords.put("du", dummy);
|
|---|
| 114 |
|
|---|
| 115 | m_Stopwords.put("dies", dummy);
|
|---|
| 116 | m_Stopwords.put("diese", dummy);
|
|---|
| 117 | m_Stopwords.put("diesem", dummy);
|
|---|
| 118 | m_Stopwords.put("diesen", dummy);
|
|---|
| 119 | m_Stopwords.put("dieser", dummy);
|
|---|
| 120 | m_Stopwords.put("dieses", dummy);
|
|---|
| 121 |
|
|---|
| 122 | m_Stopwords.put("doch", dummy);
|
|---|
| 123 | m_Stopwords.put("dort", dummy);
|
|---|
| 124 |
|
|---|
| 125 | m_Stopwords.put("durch", dummy);
|
|---|
| 126 |
|
|---|
| 127 | m_Stopwords.put("ein", dummy);
|
|---|
| 128 | m_Stopwords.put("eine", dummy);
|
|---|
| 129 | m_Stopwords.put("einem", dummy);
|
|---|
| 130 | m_Stopwords.put("einen", dummy);
|
|---|
| 131 | m_Stopwords.put("einer", dummy);
|
|---|
| 132 | m_Stopwords.put("eines", dummy);
|
|---|
| 133 |
|
|---|
| 134 | m_Stopwords.put("einig", dummy);
|
|---|
| 135 | m_Stopwords.put("einige", dummy);
|
|---|
| 136 | m_Stopwords.put("einigem", dummy);
|
|---|
| 137 | m_Stopwords.put("einigen", dummy);
|
|---|
| 138 | m_Stopwords.put("einiger", dummy);
|
|---|
| 139 | m_Stopwords.put("einiges", dummy);
|
|---|
| 140 |
|
|---|
| 141 | m_Stopwords.put("einmal", dummy);
|
|---|
| 142 |
|
|---|
| 143 | m_Stopwords.put("er", dummy);
|
|---|
| 144 | m_Stopwords.put("ihn", dummy);
|
|---|
| 145 | m_Stopwords.put("ihm", dummy);
|
|---|
| 146 |
|
|---|
| 147 | m_Stopwords.put("es", dummy);
|
|---|
| 148 | m_Stopwords.put("etwas", dummy);
|
|---|
| 149 |
|
|---|
| 150 | m_Stopwords.put("euer", dummy);
|
|---|
| 151 | m_Stopwords.put("eure", dummy);
|
|---|
| 152 | m_Stopwords.put("eurem", dummy);
|
|---|
| 153 | m_Stopwords.put("euren", dummy);
|
|---|
| 154 | m_Stopwords.put("eurer", dummy);
|
|---|
| 155 | m_Stopwords.put("eures", dummy);
|
|---|
| 156 |
|
|---|
| 157 | m_Stopwords.put("f\u00fcr", dummy);
|
|---|
| 158 | m_Stopwords.put("gegen", dummy);
|
|---|
| 159 | m_Stopwords.put("gewesen", dummy);
|
|---|
| 160 | m_Stopwords.put("hab", dummy);
|
|---|
| 161 | m_Stopwords.put("habe", dummy);
|
|---|
| 162 | m_Stopwords.put("haben", dummy);
|
|---|
| 163 | m_Stopwords.put("hat", dummy);
|
|---|
| 164 | m_Stopwords.put("hatte", dummy);
|
|---|
| 165 | m_Stopwords.put("hatten", dummy);
|
|---|
| 166 | m_Stopwords.put("hier", dummy);
|
|---|
| 167 | m_Stopwords.put("hin", dummy);
|
|---|
| 168 | m_Stopwords.put("hinter", dummy);
|
|---|
| 169 |
|
|---|
| 170 | m_Stopwords.put("ich", dummy);
|
|---|
| 171 | m_Stopwords.put("mich", dummy);
|
|---|
| 172 | m_Stopwords.put("mir", dummy);
|
|---|
| 173 |
|
|---|
| 174 | m_Stopwords.put("ihr", dummy);
|
|---|
| 175 | m_Stopwords.put("ihre", dummy);
|
|---|
| 176 | m_Stopwords.put("ihrem", dummy);
|
|---|
| 177 | m_Stopwords.put("ihren", dummy);
|
|---|
| 178 | m_Stopwords.put("ihrer", dummy);
|
|---|
| 179 | m_Stopwords.put("ihres", dummy);
|
|---|
| 180 | m_Stopwords.put("euch", dummy);
|
|---|
| 181 |
|
|---|
| 182 | m_Stopwords.put("im", dummy);
|
|---|
| 183 | m_Stopwords.put("in", dummy);
|
|---|
| 184 | m_Stopwords.put("indem", dummy);
|
|---|
| 185 | m_Stopwords.put("ins", dummy);
|
|---|
| 186 | m_Stopwords.put("ist", dummy);
|
|---|
| 187 |
|
|---|
| 188 | m_Stopwords.put("jede", dummy);
|
|---|
| 189 | m_Stopwords.put("jedem", dummy);
|
|---|
| 190 | m_Stopwords.put("jeden", dummy);
|
|---|
| 191 | m_Stopwords.put("jeder", dummy);
|
|---|
| 192 | m_Stopwords.put("jedes", dummy);
|
|---|
| 193 |
|
|---|
| 194 | m_Stopwords.put("jene", dummy);
|
|---|
| 195 | m_Stopwords.put("jenem", dummy);
|
|---|
| 196 | m_Stopwords.put("jenen", dummy);
|
|---|
| 197 | m_Stopwords.put("jener", dummy);
|
|---|
| 198 | m_Stopwords.put("jenes", dummy);
|
|---|
| 199 |
|
|---|
| 200 | m_Stopwords.put("jetzt", dummy);
|
|---|
| 201 | m_Stopwords.put("kann", dummy);
|
|---|
| 202 |
|
|---|
| 203 | m_Stopwords.put("kein", dummy);
|
|---|
| 204 | m_Stopwords.put("keine", dummy);
|
|---|
| 205 | m_Stopwords.put("keinem", dummy);
|
|---|
| 206 | m_Stopwords.put("keinen", dummy);
|
|---|
| 207 | m_Stopwords.put("keiner", dummy);
|
|---|
| 208 | m_Stopwords.put("keines", dummy);
|
|---|
| 209 |
|
|---|
| 210 | m_Stopwords.put("k\u00f6nnen", dummy);
|
|---|
| 211 | m_Stopwords.put("k\u00f6nnte", dummy);
|
|---|
| 212 | m_Stopwords.put("machen", dummy);
|
|---|
| 213 | m_Stopwords.put("man", dummy);
|
|---|
| 214 |
|
|---|
| 215 | m_Stopwords.put("manche", dummy);
|
|---|
| 216 | m_Stopwords.put("manchem", dummy);
|
|---|
| 217 | m_Stopwords.put("manchen", dummy);
|
|---|
| 218 | m_Stopwords.put("mancher", dummy);
|
|---|
| 219 | m_Stopwords.put("manches", dummy);
|
|---|
| 220 |
|
|---|
| 221 | m_Stopwords.put("mein", dummy);
|
|---|
| 222 | m_Stopwords.put("meine", dummy);
|
|---|
| 223 | m_Stopwords.put("meinem", dummy);
|
|---|
| 224 | m_Stopwords.put("meinen", dummy);
|
|---|
| 225 | m_Stopwords.put("meiner", dummy);
|
|---|
| 226 | m_Stopwords.put("meines", dummy);
|
|---|
| 227 |
|
|---|
| 228 | m_Stopwords.put("mit", dummy);
|
|---|
| 229 | m_Stopwords.put("muss", dummy);
|
|---|
| 230 | m_Stopwords.put("musste", dummy);
|
|---|
| 231 | m_Stopwords.put("nach", dummy);
|
|---|
| 232 | m_Stopwords.put("nicht", dummy);
|
|---|
| 233 | m_Stopwords.put("nichts", dummy);
|
|---|
| 234 | m_Stopwords.put("noch", dummy);
|
|---|
| 235 | m_Stopwords.put("nun", dummy);
|
|---|
| 236 | m_Stopwords.put("nur", dummy);
|
|---|
| 237 | m_Stopwords.put("ob", dummy);
|
|---|
| 238 | m_Stopwords.put("oder", dummy);
|
|---|
| 239 | m_Stopwords.put("ohne", dummy);
|
|---|
| 240 | m_Stopwords.put("sehr", dummy);
|
|---|
| 241 |
|
|---|
| 242 | m_Stopwords.put("sein", dummy);
|
|---|
| 243 | m_Stopwords.put("seine", dummy);
|
|---|
| 244 | m_Stopwords.put("seinem", dummy);
|
|---|
| 245 | m_Stopwords.put("seinen", dummy);
|
|---|
| 246 | m_Stopwords.put("seiner", dummy);
|
|---|
| 247 | m_Stopwords.put("seines", dummy);
|
|---|
| 248 |
|
|---|
| 249 | m_Stopwords.put("selbst", dummy);
|
|---|
| 250 | m_Stopwords.put("sich", dummy);
|
|---|
| 251 |
|
|---|
| 252 | m_Stopwords.put("sie", dummy);
|
|---|
| 253 | m_Stopwords.put("ihnen", dummy);
|
|---|
| 254 |
|
|---|
| 255 | m_Stopwords.put("sind", dummy);
|
|---|
| 256 | m_Stopwords.put("so", dummy);
|
|---|
| 257 |
|
|---|
| 258 | m_Stopwords.put("solche", dummy);
|
|---|
| 259 | m_Stopwords.put("solchem", dummy);
|
|---|
| 260 | m_Stopwords.put("solchen", dummy);
|
|---|
| 261 | m_Stopwords.put("solcher", dummy);
|
|---|
| 262 | m_Stopwords.put("solches", dummy);
|
|---|
| 263 |
|
|---|
| 264 | m_Stopwords.put("soll", dummy);
|
|---|
| 265 | m_Stopwords.put("sollte", dummy);
|
|---|
| 266 | m_Stopwords.put("sondern", dummy);
|
|---|
| 267 | m_Stopwords.put("sonst", dummy);
|
|---|
| 268 | m_Stopwords.put("\00fcber", dummy);
|
|---|
| 269 | m_Stopwords.put("um", dummy);
|
|---|
| 270 | m_Stopwords.put("und", dummy);
|
|---|
| 271 |
|
|---|
| 272 | m_Stopwords.put("uns", dummy);
|
|---|
| 273 | m_Stopwords.put("unser", dummy);
|
|---|
| 274 | m_Stopwords.put("unserem", dummy);
|
|---|
| 275 | m_Stopwords.put("unseren", dummy);
|
|---|
| 276 | m_Stopwords.put("unsere", dummy);
|
|---|
| 277 | m_Stopwords.put("unseres", dummy);
|
|---|
| 278 |
|
|---|
| 279 | m_Stopwords.put("unter", dummy);
|
|---|
| 280 | m_Stopwords.put("viel", dummy);
|
|---|
| 281 | m_Stopwords.put("vom", dummy);
|
|---|
| 282 | m_Stopwords.put("von", dummy);
|
|---|
| 283 | m_Stopwords.put("vor", dummy);
|
|---|
| 284 | m_Stopwords.put("w\u00e4hrend", dummy);
|
|---|
| 285 | m_Stopwords.put("war", dummy);
|
|---|
| 286 | m_Stopwords.put("waren", dummy);
|
|---|
| 287 | m_Stopwords.put("warst", dummy);
|
|---|
| 288 | m_Stopwords.put("was", dummy);
|
|---|
| 289 | m_Stopwords.put("weg", dummy);
|
|---|
| 290 | m_Stopwords.put("weil", dummy);
|
|---|
| 291 | m_Stopwords.put("weiter", dummy);
|
|---|
| 292 |
|
|---|
| 293 | m_Stopwords.put("welche", dummy);
|
|---|
| 294 | m_Stopwords.put("welchem", dummy);
|
|---|
| 295 | m_Stopwords.put("welchen", dummy);
|
|---|
| 296 | m_Stopwords.put("welcher", dummy);
|
|---|
| 297 | m_Stopwords.put("welches", dummy);
|
|---|
| 298 |
|
|---|
| 299 | m_Stopwords.put("wenn", dummy);
|
|---|
| 300 | m_Stopwords.put("werde", dummy);
|
|---|
| 301 | m_Stopwords.put("werden", dummy);
|
|---|
| 302 | m_Stopwords.put("wie", dummy);
|
|---|
| 303 | m_Stopwords.put("wieder", dummy);
|
|---|
| 304 | m_Stopwords.put("will", dummy);
|
|---|
| 305 | m_Stopwords.put("wir", dummy);
|
|---|
| 306 | m_Stopwords.put("wird", dummy);
|
|---|
| 307 | m_Stopwords.put("wirst", dummy);
|
|---|
| 308 | m_Stopwords.put("wo", dummy);
|
|---|
| 309 | m_Stopwords.put("wollen", dummy);
|
|---|
| 310 | m_Stopwords.put("wollte", dummy);
|
|---|
| 311 | m_Stopwords.put("w\u00fcrde", dummy);
|
|---|
| 312 | m_Stopwords.put("w\u00fcrden", dummy);
|
|---|
| 313 | m_Stopwords.put("zu", dummy);
|
|---|
| 314 | m_Stopwords.put("zum", dummy);
|
|---|
| 315 | m_Stopwords.put("zur", dummy);
|
|---|
| 316 | m_Stopwords.put("zwar", dummy);
|
|---|
| 317 | m_Stopwords.put("zwischen", dummy);
|
|---|
| 318 | }
|
|---|
| 319 | }
|
|---|
| 320 |
|
|---|
| 321 | /**
|
|---|
| 322 | * Returns true if the given string is a stop word.
|
|---|
| 323 | */
|
|---|
| 324 | public boolean isStopword(String str) {
|
|---|
| 325 |
|
|---|
| 326 | return m_Stopwords.containsKey(str.toLowerCase());
|
|---|
| 327 | }
|
|---|
| 328 | }
|
|---|
| 329 |
|
|---|
| 330 |
|
|---|
