abstract in order to decrease the space complexity of image storage and transfer, it is necessary to do image compression.

these three algorithms improve the traditional algorithm efficiency on aspects such as time complexity, space complexity and time-space complexity respectively.

这三种算法分别从时间复杂度，空间复杂度以及时间空间复杂度协调这三种不同的角度对传统字节码校验中的不足进行了有效的改进。

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we mainly apply dimension reduction methods which can reduce the time complexity and space complexity effectively and also obtain better recognition effect.

主要采用降维的方法进行数据压缩，获取重要的特征信息以进行匹配的实现，这样既降低了时间复杂度和空间复杂度，同时也获得了较好的识别效果。

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at last, the analysis and comparison with the quadtree structure was made in both time complexity and space complexity.

最后，从时间复杂度和空间复杂度两个方面与四叉树结构进行分析比较，给出评估结果。

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the analysis and the results of experiments show that the scheme has low time complexity, low space complexity and good security.

实验和分析结果表明，算法的时间复杂度和空间复杂度较低，加密效果较好，安全性较高。

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finally, we analyze the space complexity and time complexity of this algorithm and compare it with previous scheme.

最后分析了改进算法的时间复杂度和空间复杂度，并与同类算法进行了比较。

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experimental results show that the algorithm is efficient on the time complexity and the space complexity, but also has good performance.

实验结果表明算法在时间复杂度和空间复杂度是高效的，而且具有较好的性能。

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the algorithm organization is improved. that reduces the space complexity to about 1/ 5 of before.

改进了层次式计算的流程，使算法的空间复杂度降到原算法的1/5左右。

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theoretical analyses show that the method has a linear space complexity and converges to the global optimum.

对算法的空间复杂度和收敛性进行了理论分析。

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this largely decreased space complexity.

这样，大大降低了算法的空间复杂度。

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computational complexity is composed of computational time complexity and computational space complexity.

计算复杂度由计算时间复杂度和计算空间复杂度组成。

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compared with other algorithms, it has the least time complexity and less space complexity.

与其他二维分类算法相比，该算法具有最小的查找时间复杂度和较小的内存空间复杂度。

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at last analyze the time complexity and the space complexity of the new algorithms.

最后根据改进，在原有的报文分类算法的时间复杂性和空间复杂性基础上分析了新算法的时间复杂性和空间复杂性。

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the space complexity of the new algorithm is o ( 1).

新算法的空间复杂性是O（1）。

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influence of active volume on the current modulation bandwidth of micro-cavity semiconductor lasers

有源区体积对微腔半导体激光器电流调制带宽的影响

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the current modulation bandwidth of micro-cavity semiconductor lasers versus the active volume is analyzed.

主要讨论了微腔半导体激光器电流调制带宽随有源区体积的变化规律。

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this technique is elegant and proves to be an easier way than direct measurement of optical modulation bandwidth .

这个方法比直接透过光学量测调变频宽更为方便。

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basic theory of winter method and recursion formulas of three smooth equations are introduced.

介绍了温特斯法的基本理论及3个平滑方程的递推公式、初始值公式和预测模型公式，并依据其理论，采用VB6.0编程技术，设计了预测模型软件；

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a new radar range data recursion filter

一种新的雷达距离数据递推滤波器

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recursion method in theory of disorder systems

无序系统理论中的Recursion方法

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the tool even supports recursion to a given depth.

这个工具还支持递归到给定深度。

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