Low density parity check codes are a class of linear block error - correcting codes that can be defined by the very sparse parity - check matrix . their error performance approach shannon limits Ldpc码(低密度校验码)是一类可以用非常稀疏的奇偶校验矩阵定义的线性分组纠错码,具有逼近香农限的性能。
Xml data , on the other hand , may be " sparse . " since all the elements of a given type need not have the same structure , information that is unknown or inapplicable can simply not appear 而xml数据却可以是“稀疏的” 。因为一个给定类型的所有元素不需要有相同的值，所以未知的或者不适用的信息也就不存在了。
And , since you have such a liberal attitude towards experimentation , and excuse my observation , but the least amount of hair of anyone in the company , maybe you ' d be willing to let us test out the product on you 既然你对试验有如此开放的态度，又容我不客气地说，你的头发在公司内是最稀疏的，也许你愿意试验这产品？
The moon was climbing higher and higher ; its light began to fall here and there in masses through the more open districts of the wood ; and right in front of me a glow of a different colour appeared among the trees 月亮愈升愈高，在树林较为稀疏的地方，处处洒有清清月色。但在我正前方的树丛中，却出现与月光不同的亮光。
He was thin and pale . one thin , transparently white hand held a handkerchief , with the other he was softly fingering the delicate moustache that had grown long . his eyes gazed at them as they came in 他消瘦苍白，一只枯瘦的白得透明的手拿着一条小手巾，另一只手抹着他稀疏的长出来的胡子，缓缓移动着手指头，眼睛望着来人。
Coming out on the road , the peasant paused , looked about him , and turned toward a thin screen of trees . he stood still at a big oak , still covered with leaves , and beckoned mysteriously to them 他走上一道斜坡，停了一下，张望四周，然后朝一处树木稀疏的地方走过去，在一株叶子还没有掉落的大橡树下站住了，神秘地对他们招手。
Ldpc ( low density parity check ) code is a kind of linear block code that defined by very sparse parity matrix or tanner graph , and it is also called gallager code since gallager initially presented it Ldpc ( lowdensityparitycheck )码是一类用非常稀疏的校验矩阵或二分图定义的线性分组纠错码,最初由gallager发现,故亦称gallager码。
They felt awkward and once more assumed their frigid bearing , the one looking square - set and solid with his thick head of hair , the other drawing back his lean shoulders , over which fell his fringe of thin white locks 他们当中，一个虎背熊腰，体格健壮，一头浓密的头发另一个挺着瘦削的肩膀，头顶光秃秃的，一圈稀疏的白发挂在肩上。
As the car crossed the zone of scattered dwellings that separated oakland from berkeley , he kept a lookout for a familiar , two - story building along the front of which ran the proud sign , higginbotham s cash store 汽车经过奥克兰和伯克利之间那个住宅稀疏的地区时，他一直在注意一幢熟悉的一楼一底的建筑，楼前有一块神气十足的大招牌：希金波坦现金商店。
