针对二维矩形条带装箱问题提出了一种启发式布局算法,即底部左齐择优匹配算法(lowest-level left a lignbest fit,简称LLABF).LLABF算法遵循最佳匹配优先原则,该原则综合考虑完全匹配优先、宽度匹配优先、高度匹配优先、组合宽度匹配优...针对二维矩形条带装箱问题提出了一种启发式布局算法,即底部左齐择优匹配算法(lowest-level left a lignbest fit,简称LLABF).LLABF算法遵循最佳匹配优先原则,该原则综合考虑完全匹配优先、宽度匹配优先、高度匹配优先、组合宽度匹配优先及可装入优先等启发式规则.与BL(bottom-left),IBL(improved-bottom-left)与BLF(bottom-left-fill)等启发算法不同的是,LLABF能够在矩形装入过程中自动选择与可装区域匹配的下一个待装矩形.计算结果表明,LLABF结合遗传算法(genetic algorithm,简称GA)解决二维条带装箱问题更加有效.展开更多
Ⅰ.作文要求:Write a note of congratulation according to the situation described:(40—70 words)You are Li Ling.You want to write a note to Mary,one of your bestfriends who has just won the first prize in a contest.
稿件正文一律采用宋体五号,一级标题采用黑体四号。英文和数字一律采用Times New Roman五号。(一)稿件的第一页应提供以下信息:1.文章标题;2.所有作者姓名、单位、职称、职务、电话号码和电子邮件,并指明通讯作者及通讯地址;3.感谢语(...稿件正文一律采用宋体五号,一级标题采用黑体四号。英文和数字一律采用Times New Roman五号。(一)稿件的第一页应提供以下信息:1.文章标题;2.所有作者姓名、单位、职称、职务、电话号码和电子邮件,并指明通讯作者及通讯地址;3.感谢语(如有的话)及相关资助。展开更多
文摘针对二维矩形条带装箱问题提出了一种启发式布局算法,即底部左齐择优匹配算法(lowest-level left a lignbest fit,简称LLABF).LLABF算法遵循最佳匹配优先原则,该原则综合考虑完全匹配优先、宽度匹配优先、高度匹配优先、组合宽度匹配优先及可装入优先等启发式规则.与BL(bottom-left),IBL(improved-bottom-left)与BLF(bottom-left-fill)等启发算法不同的是,LLABF能够在矩形装入过程中自动选择与可装区域匹配的下一个待装矩形.计算结果表明,LLABF结合遗传算法(genetic algorithm,简称GA)解决二维条带装箱问题更加有效.
文摘Ⅰ.作文要求:Write a note of congratulation according to the situation described:(40—70 words)You are Li Ling.You want to write a note to Mary,one of your bestfriends who has just won the first prize in a contest.