几分

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

Ln this paper, a new learning method is presented which is based on analyzing a set of linear separable structures. The most important benefit of this method is all binary neurons belong to one or more types of linear separable structure sets. If those linear separable structure sets have clear logical meaning, the whole knowledge of binary neural networks can be dug out.

该文提出了一种基于线性可分结构系结构分析的学习算法，采用这种方法对布尔空间的样本集合进行学习，得到的二进神经网络隐层神经元都归属于一类或几类线性可分结构系，只要这几类线性可分结构系的逻辑意义是清晰的，就可以分析整个学习结果的知识内涵。

His flagship heart hospital charges $2,000, on average, for open-heart surgery, compared with hospitals in the U.S.

如今他在印度提供先进的医疗服务，而费用只有世界其他地方的几分之一。

Time to see them, not as we imagined, like a lot of long teeth, but with long pig a bit similar.

看到它们的时候，并不像我们想象的一样，长着很大的牙，倒是跟家猪长的有几分相像。

It is similar to the idea of a workspace, for example, in Smalltalk.

这和 workspace 有几分相像，比如说 Smalltalk 里的 workspace 就和这个差不多。

In a shared LAN,the throughput is a fraction of the rate of the transmitters.

在一个共享网络中，吞吐量是指发射机的速率的几分之一。

He was glad when the train stopped at Brentwood at a few minutes after twelve.

十二点过几分，火车在布伦特伍德靠站了，他很高兴。

But it was also "an acquired taste, much of it bitter".

虽然有几分苦涩，但我已经习惯了。

A road journey across a featureless plain surrounded by the Zagros mountains took us to the tomb of Cyrus, a kind of stepped pyramid surmounted by a stone ark.

一条道路横亘在札格洛斯山所包围的一片景致单调的高原上，领著我们到居鲁士的陵墓前，这个墓有几分像阶梯金字塔，上头再覆盖一个石制的平底船。

However within a short period of 6 months she was already able to communicate in Japanese with the staff of the company and during meetings. Her first Japanese Album "KONYA KASHIRA? ASHITA KASHIRA?"

成龙的评价'邓丽君的美，天真之中又有几分雍容，永远的不可救药的温柔，兰花一样的气质，使她的歌与她的人完美地结合为一体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。