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Q & A ... °Ô½ÃÆÇ  (Optimization)


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¡Ø ÇØ´çµÇ´Â Á¦Ç°±ºÀ» ¼±ÅÃÇϽŠÈÄ ÇÏ°í ½ÍÀ¸½Å ¸»¾¸À» Àû¾î ÁֽʽÿÀ.

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[RE] Infeasible·Î º¸¿©ÁÖ°í ÀÖ½À´Ï´Ù.
ÀÛ¼ºÀÚ
¼Ò°æÃ¶
ÀÛ¼ºÀÏ
2008-03-24
Á¶È¸¼ö 1322 È¸
÷ºÎÆÄÀÏ Ã·ºÎµÈ ÆÄÀϾøÀ½.
¹®ÀÇÇϽй®Á¦ÀÇ °á°ú´Â InfeasibleÀ̸ç, CPLEXÀÇ °á°úµµ InfeasibleÀ» ³ªÅ¸³»°í ÀÖ½À´Ï´Ù..

´ÙÀ½Àº ¹®ÀÇÇϽг»¿ëÁß¿¡¼­ °á°ú ºÎºÐÀÔ´Ï´Ù..

CPLEX> optimize
Tried aggregator 1 time.
LP Presolve eliminated 7 rows and 7 columns.
Reduced LP has 19 rows, 69 columns, and 261 nonzeros.
Presolve time = 0.00 sec.

Iteration log . . .
Iteration: 1 Dual objective = 741.818600

Dual simplex - Infeasible: Objective = 1.6251416000e+003
Solution time = 0.00 sec. Iterations = 12 (0)
Infeasible variable = slack c26


À§ÀÇ ³»¿ëÀ» º¸¸é slack c26¿¡¼­ InfeasibleÀÌ ¹ß»ýÇß´Ù°í µÇ¾îÀÖ½À´Ï´Ù..

±×¸®°í, Ãâ·ÂµÇ´Â º¯¼öÀÇ °ªÀº Dual Simplex·Î Solve¸¦ Ç߱⠶§¹®¿¡ Infeasible »óÅÂÀÇ ÇöÀçÇØ¸¦ º¸¿©ÁÖ´Â °ÍÀ̱¸¿ä.. (Iteration: 1 Dual objective = 741.818600)

±×·¸±â ¶§¹®¿¡ º¯¼öÀÇ °ªÀÌ (-) »óŰ¡ Á¸ÀçÇÏ´Â °ÍÀÔ´Ï´Ù.
°ü·Ã±Û º¸±â
"[RE] Infeasible·Î º¸¿©ÁÖ°í ÀÖ½À´Ï´Ù."¿Í(°ú) °ü·ÃµÈ ±ÛÀÌ  1°Ç ÀÖ½À´Ï´Ù.
LP bound ¿À·ù ¹®ÀÇ ±èÈñ¹® 2008-03-21
[RE] Infeasible·Î º¸¿©ÁÖ°í ÀÖ½À´Ï´Ù. ¼Ò°æÃ¶ 2008-03-24