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Q & A ... °Ô½ÃÆÇ  (Optimization)


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    ÀúÈñ KSTECÀÇ Á¦Ç°À̳ª ¼­ºñ½º¿¡ ´ëÇØ ±Ã±ÝÇϽŠÁ¡À̳ª ±â¼úÁö¿øÀ» ¿øÇϽô °í°´´ÔÀº ȸ»ç¸í,
    ºÎ¼­¸í, ¼º¸í, »ç¿ëÁ¦Ç°¸í, Á¦Ç° VERSIONÀ» ¸í½ÃÇÏ¿© Áֽñ⠹ٶø´Ï´Ù.

¡Ø °Ô½ÃÇϽг»¿ë¿¡ ´ëÇØ¼­´Â ½Å¼ÓÇÏ°Ô ´äº¯ÇØ µå¸®°Ú½À´Ï´Ù.
¡Ø ÇØ´çµÇ´Â Á¦Ç°±ºÀ» ¼±ÅÃÇϽŠÈÄ ÇÏ°í ½ÍÀ¸½Å ¸»¾¸À» Àû¾î ÁֽʽÿÀ.

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[RE]LP reduced cost ¹®ÀÇ
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2008-04-08
Á¶È¸¼ö 1356 È¸
÷ºÎÆÄÀÏ Ã·ºÎµÈ ÆÄÀϾøÀ½.
¾È³çÇϽʴϱî KSTECÀÔ´Ï´Ù.

Reduced Cost °ªÀÌ º¯¼ö°ªÀ» ÇÑ´ÜÀ§ Áõ°¡ ½Ãų ¶§
¸ñÀû½Ä¿¡ ÁÖ´Â ¿µÇâÀ» ³ªÅ¸³»´Â °ªÀ̶ó´Â °üÁ¡¿¡¼­ º¼¶§
-value °¡ Ãâ·ÂµÇ´Ï ¿ÀÇØ°¡ ÀÖÀ»½Ç ¼ö ÀÖ°Ú½À´Ï´Ù.

±×·¯³ª º¯¼ö°¡ Bound¸¦ °®´Â°æ¿ì Reduced °ªÀÌ ½ÇÁ¦ ¸ñÀû½Ä¿¡ ¹ÌÄ¡´Â ¿µÇâ°ú ´Ù¸¦ ¼ö ÀÖ½À´Ï´Ù. RC°ªÀº Á¦¾à¿¡ ÀÇÇØ ÆÇ´ÜµÇ¾î Áö´Â °ªÀε¥ ÀÌ¿¡ º¯¼öÀÇ ¹Ù¿îµå°¡ ¿µÇâÀ» ¹ÌÄ¡±â ¶§¹®ÀÎ °ÍÀ¸·Î »ý°¢µË´Ï´Ù.

º¸³»Áֽй®Á¦ÀÇ °æ¿ì º¯¼öÀÇ ¹Ù¿îµå¸¦ ¸ðµÎ Á¦°Å ÇÏ°í °°Àº ÀÛ¾÷À» ¼öÇàÇϽøé RC°¡ ¸ðµÎ ¾ç¼öÀÎ °ÍÀ» º¸½Ç¼ö ÀÖ½À´Ï´Ù.

¶ÇÇÑ ¶ó¿ìÆ®µµ 11°³ arc¸¦ ¿¬°áÇÏ´Â °ÍÀ¸·Î Á¤»ó Ãâ·ÂµË´Ï´Ù.

¿ø·¡ ¹®Á¦ ¿ª½Ã Optimal°ªÀ» ãÀº °ÍÀÔ´Ï´Ù.


Variable Name Solution Value
id64 1.000000
id90 1.000000
id98 1.000000
id109 1.000000
id111 1.000000
id238 1.000000
id276 1.000000
id326 1.000000
id332 1.000000
id343 1.000000
id371 1.000000
Rgid53 11.000000
All other variables in the range 1-324 are 0.

CPLEX> display sol red -
Variable Name Reduced Cost
id55 1.000000
id56 91.922425
id57 10.418437
id58 156.530745
id59 12.275359
id60 9.083333
id61 3.192025
id63 3.192025
id66 12.630888
id67 144.230456
id68 147.422481
id69 11.860597
id70 11.860597
id71 95.267664
id72 160.684395
id73 12.275359
id74 9.083333
id75 163.876420
id76 27.839223
id77 24.647198
id78 27.839223
id79 28.314536
id80 28.314536
id81 7.120813
id82 7.120813
id83 7.163338
id84 12.413338
id85 16.453939
id86 151.601061
id87 117.092018
id88 119.844889
id91 153.563582
id92 156.755607
id93 20.718411
id94 17.526385
id95 20.718411
id96 21.193723
id97 21.193723
id100 9.333126
id101 144.480249
id102 156.755607
id103 146.856300
id104 146.856300
id105 15.848643
id106 15.848643
id107 15.848643
id108 4.178061
id112 156.530745
id113 159.722771
id114 28.039853
id115 28.039853
id117 3.483617
id118 12.300290
id119 147.447412
id120 159.777306
id121 14.311800
id122 15.145134
id123 111.712279
id124 6.707282
id125 9.899308
id126 9.899308
id129 3.192025
id131 159.722771
id132 156.530745
id133 3.192025
id135 159.722771
id136 31.611648
id137 28.419623
id138 31.611648
id139 27.522691
id140 27.522691
id142 0.854853
id143 13.036347
id144 147.447412
id145 159.722771
id146 149.823463
id147 149.823463
id148 26.656449
id149 26.656449
id150 26.656449
id151 30.941870
id152 32.049062
id153 30.941870
id154 30.941870
id155 19.801706
id156 20.635039
id157 153.015489
id158 149.823463
id159 9.899308
id160 6.707282
id161 9.899308
id162 9.899308
id165 3.192025
id168 195.565283
id169 42.226563
id170 39.034537
id171 164.389438
id172 161.197412
id173 12.275359
id174 9.083333
id175 198.757308
id176 62.720111
id177 59.528086
id178 62.720111
id179 63.195424
id180 63.195424
id181 44.681229
id182 44.681229
id183 39.034537
id184 39.034537
id185 51.334827
id186 186.481949
id187 198.757308
id188 188.858000
id189 188.858000
id190 57.850344
id191 57.850344
id192 57.850344
id193 64.912302
id195 61.720277
id196 64.912302
id197 64.912302
id198 51.334827
id199 51.334827
id200 192.050026
id201 188.858000
id202 48.933845
id203 45.741819
id204 48.933845
id205 48.933845
id206 39.034537
id207 39.034537
id208 42.226563
id209 39.034537
id210 39.034537
id211 159.722771
id212 156.530745
id213 3.192025
id215 159.722771
id216 27.522691
id217 27.522691
id219 0.854853
id220 13.036347
id221 147.447412
id222 159.722771
id223 149.823463
id224 149.823463
id225 30.941870
id226 30.941870
id227 30.941870
id228 153.015489
id229 149.823463
id230 9.899308
id231 6.707282
id232 9.899308
id233 9.899308
id236 3.192025
id239 180.500930
id240 27.162210
id241 23.970184
id242 183.692955
id243 47.655758
id244 44.463733
id245 47.655758
id246 48.131071
id247 48.131071
id248 26.937348
id249 26.937348
id250 23.970184
id251 23.970184
id252 153.695547
id253 150.503522
id254 153.695547
id255 18.133663
id256 18.133663
id257 36.270474
id258 171.417596
id259 183.692955
id260 173.793648
id261 173.793648
id262 42.785991
id263 42.785991
id264 42.785991
id265 49.847950
id266 46.655924
id267 49.847950
id268 49.847950
id269 36.270474
id270 36.270474
id271 159.722771
id272 156.530745
id273 159.722771
id274 24.160887
id275 24.160887
id278 12.300290
id279 147.447412
id280 159.722771
id281 12.300290
id282 12.300290
id283 176.985673
id284 173.793648
id285 33.869492
id286 30.677466
id287 33.869492
id288 33.869492
id289 23.970184
id290 23.970184
id291 27.162210
id292 23.970184
id293 23.970184
id294 13.610462
id295 1.335104
id296 13.610462
id297 6.903180
id298 6.082873
id299 159.722771
id300 28.371221
id301 25.179196
id302 28.371221
id303 30.408988
id304 30.408988
id305 19.474266
id306 147.447412
id307 159.722771
id308 149.823463
id309 149.823463
id310 19.101521
id311 19.101521
id312 19.101521
id313 30.803839
id314 31.911031
id315 30.803839
id316 30.803839
id317 153.015489
id318 149.823463
id319 9.899308
id320 6.707282
id321 9.899308
id322 9.899308
id325 3.192025
id328 12.275359
id330 12.275359
id331 5.568077
id333 135.147122
id334 147.422481
id335 16.461375
id336 16.461375
id337 16.461375
id340 145.148548
id341 0.195377
id342 3.192025
id344 2.752871
id347 163.876420
id348 153.977112
id349 153.977112
id350 22.969456
id351 22.969456
id352 22.969456
id353 30.031414
id354 26.839389
id355 30.031414
id356 30.031414
id357 16.453939
id358 16.453939
id359 157.169138
id360 153.977112
id361 14.052957
id362 10.860931
id363 14.052957
id364 14.052957
id365 4.153649
id366 4.153649
id367 7.345674
id368 4.153649
id369 4.153649
id370 12.275359
id372 12.275359
id373 5.568077
id374 4.747770
id375 15.563864
id376 27.839223
id377 17.939916
Rgid53 -14.257308
All other reduced costs in the range 1-324 are 0.
°ü·Ã±Û º¸±â
"[RE]LP reduced cost ¹®ÀÇ"¿Í(°ú) °ü·ÃµÈ ±ÛÀÌ  1°Ç ÀÖ½À´Ï´Ù.
LP reduced cost ¹®ÀÇ ±èÈñ¹® 2008-04-04
[RE]LP reduced cost ¹®ÀÇ Á¶ÇѹΠ2008-04-08