这种层析反演方法以块体为基本单元，可以模拟和反演复杂速度结构。
The tomographic approach which basic unit is rectangular block can model and inverse the complex velocity structure.
Doug Lea的分配程序有着与我们的版本非常类似的基本结构，但是它加入了索引，这使得搜索速度更快，并且可以将多个没有被使用的块组合为一个大的块。
Doug Lea's allocator has a basic structure much like our version, but it incorporates indexes to make searching faster and has the ability to combine multiple unused chunks into one large chunk.
基本短语识别和词性标注的实验显示，这种新的数据结构的确能够极大地加快最大熵方法执行系统的速度，同时保持空间复杂度不变。
Experiments on chunking recognition and Part-of-Speech tagging are conducted to show that the new data structure greatly speeds up the feature matching process while keeping the same space complexity.
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