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Description: 三叉树方法计算美式期权定价，更加精确而且计算速度增加。有关说明在文件中。-tree method trigeminal American option pricing, and more accurate calculation of the speed increase. The note in the document.
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Size: 2462 |
Author: 真实 |
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Description: （利用GIF_LZW算法实现的）网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由：稳定性好。 二、使用字节数据流进行传输，理由： A:VB的String存在自动Unicode转换问题，影响速度； B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由： A:行程编码、Huffman压缩算法压缩率太低； B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现； C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF- LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX specialized optimization algorithm), is not conducive to VB; C : GIF- LZW compression algorithm compression ratio better, and I have come up with un
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Author: 房 |
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Description: Wavelets have widely been used in many signal and image processing applications. In this paper, a new
serial-parallel architecture for wavelet-based image compression is introduced. It is based on a 4-tap wavelet
transform, which is realised using some FIFO memory modules implementing a pixel-level pipeline
architecture to compress and decompress images. The real filter calculation over 4 · 4 window blocks is
done using a tree of carry save adders to ensure the high speed processing required for many applications.
The details of implementing both compressor and decompressor sub-systems are given. The primarily analysis
reveals that the proposed architecture, implemented using current VLSI technologies, can process a
video stream in real time.-Wavelets have been widely used in many sign al and image processing applications. In this p aper. a new serial-parallel architecture for wavele t-based image compression is introduced. It is based on a 4-tap wavelet transform. which is realized using some FIFO memory module 's implementing a pixel-level pipeline archite cture to compress and decompress images. The're al filter calculation over 4 blocks window is done using a tree of carry save adders to ensure t he high speed processing required for many appl ications. The details of implementing both com pressor decompressor and sub-systems are give n. The primarily analysis reveals that the prop osed architecture, VLSI implemented using current technologies, can process a video stream in real time.
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Size: 2837504 |
Author: sdfafaf |
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Description: ＢＳＰ树演示程序，程序实现其衩现流程，及功能作用，用于对加快图形处理能力！-BSP tree demonstration program, procedures to achieve their panties are processes and functions, used to speed up the graphics processing capability!
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Size: 1401856 |
Author: 吴子朝 |
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Description: ANN是一个加快搜索速度的源码程序；通过C++编写，支持在任意高维空间的近似或准确的最近邻搜索。-ANN is a source to speed up the search speed of procedures through C++ Prepared to support the arbitrary high-dimensional space approximate or accurate nearest neighbor search.
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Description: FP-growth算法的改进C++程序,具有较好的扩展性和应用性,本程序改成用行读取，然后在内存中解析。更有效的方式是采用块读取方式（本人在以前项目中验证过，速度大为提高。）-FP-growth algorithm C++ Procedures, have good scalability and application, the procedure changed to use line to read, and then resolve in memory. More effective approach is the use of block-read mode (I tested before the project, speed greatly improved.)
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Size: 1803264 |
Author: laizhengwen |
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Description: 一个对树控件上操作速度（添加，删除，排序）进行优化的例子，当对大量树节点进行操作时，此方法可以比常规方法明显快几倍甚至十几倍-A tree control on the operation speed (add, delete, sort) to optimize the example, when a large number of tree nodes in operation, this method can be significantly faster than conventional methods of ten times or even several times
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Size: 45056 |
Author: 严重霄 |
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Description: 系统特色:
1,栏目无限级分类,形成树型结构，可以随意增加，修改，移动，删除栏目，移动或删除栏目的同时系统自动移动或删除其对应子栏目和信息。
2,系统支持国际化，采用UTF-8编码，资源文件里可以设置多国语言，形成多国语言界面。
3,系统采用Struts标签制，避免Jsp页面出java代码。
3,完全生成前台静态页面,大大提高网民浏览前台页面的速度，降低服务器的资源开销。
4,集成最新编辑器(eWebEditor V4.60),实现所见即所得的效果
后台登陆地址：admin/login.jsp
登陆管理名称为：admin123 密码：admin123-System Characteristics: 1, columns limitless class classification, the formation of tree structure, can add, modify, move, delete columns, move, or delete columns, while the system automatically move or delete the corresponding sub-sections and information. 2, system supports internationalization, the use of UTF-8 encoding, resource documents in multiple languages can be set to form a multi-language interface. 3, the system using Struts labeling system to avoid a java code jsp page. 3, completely generate the static front page, greatly improve the prospects of Internet users browse the page the speed and reduce server overhead resources. 4, integration of the latest editor (eWebEditor V4.60), the effect of the background to realize WYSIWYG landing Address: admin/login.jsp landing management name: admin123 password: admin123
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Size: 3533824 |
Author: huan |
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Description: HART协议编程例程，非常完整，定能加快研发进度。-HART protocol programming routines, very complete and will be able to speed up the R
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Author: zsy |
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Description: 基于小波的ICA-R算法，适合混合图像的分离。具有速度快等优势。-Wavelet-based ICA-R algorithm, suitable for the separation of mixed images. With a speed advantage.
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Size: 169984 |
Author: annie |
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Description: R树，具有搜索，添加，删除节点能，利用R树，可以为空间搜索速度带来很大的提升，是GIS中必备的一种算法-R tree, with the search, add, delete nodes can use R trees, you can search for the space a great deal of speed upgrade is necessary for GIS in an algorithm
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Size: 14336 |
Author: name |
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Description: 用matlab编写的k-dtree，加快搜索，在点云拼合中应用广泛。-Matlab prepared with k-dtree, to speed up the search, put together in the point cloud in a wide range of applications.
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Size: 302080 |
Author: 翟乐 |
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Description: 红黑树是一种自平衡二叉查找树，是在计算机科学中用到的一种数据结构，典型的用途是实现关联数组。-AVL trees are actually easier to implement than RB trees because there are fewer cases. And AVL trees require O(1) rotations on an insertion, whereas red-black trees require O(lg n).
In practice, the speed of AVL trees versus red-black trees will depend on the data that you re inserting. If your data is well distributed, so that an unbalanced binary tree would generally be acceptable (i.e. roughly in random order), but you want to handle bad cases anyway, then red-black trees will be faster because they do less unnecessary rebalancing of already acceptable data.On the other hand, if a pathological insertion order (e.g. increasing order of key) is common, then AVL trees will be faster, because the stricter balancing rule will reduce the tree s height.
Splay trees might be even faster than either RB or AVL trees,depending on your data access distribution. And if you can use a hash instead of a tree, then that ll be fastest of all.
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Size: 8192 |
Author: kark |
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Description: 用verilog设计的FIR滤波器。滤波器需要很快的处理速度，所以采用了wallace树算法，超前进位加法器-The FIR filter is designed with verilog. To improve the process speed, wallace tree and fast-carrylook-aheadarithmetic were used.
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Size: 324608 |
Author: simeon chan |
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Description: 经典索引方法，它是在R树的基础上进行改进，再次提高了查询速度，用VC编写，代码精炼。-Classic index method, which is in the R-tree based on the improved query speed once again increased, with VC development, refining the code.
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Size: 50176 |
Author: lyd |
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Description: 潘明海 刘英哲 于维双 (论文)
中文摘要：
本文讨论了一种可在FPGA上实现的FFT结构。该结构采用基于流水线结构和快速并行乘法器的蝶形处理器。乘法器采用改进的Booth算法，简化了部分积符号扩展，使用Wallace树结构和4-2压缩器对部分积归约。以8点复点FFT为实例设计相应的控制电路。使用VHDL语言完成设计，并综合到FPGA中。从综合的结果看该结构可在XC4025E-2上以52MHz的时钟高速运行。在此基础上易于扩展为大点数FFT运算结构。
-Pan Minghai Liuying Zhe Yu-dimensional pairs (thesis) Chinese Abstract: This paper discusses an FPGA can be implemented on the structure of the FFT. The architecture based on pipeline architecture and fast parallel multiplier butterfly processor. Multiplier using modified Booth algorithm simplifying the partial product sign extension, use the Wallace tree and 4-2 compressor for partial product reduction. 8-point complex-point FFT as an example design of the corresponding control circuit. To complete the design using the VHDL language, and integrated into the FPGA. From the results of a comprehensive look at the structure can be XC4025E-2 with 52MHz clock on the high-speed operation. On this basis, easy to expand the structure for large point FFT operations.
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Size: 128000 |
Author: culun |
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Description: 分形树摇曳的动画实现，通过设置双缓冲区，解决绘制和输出速度不匹配的问题-Animated fractal tree swaying achieved by setting the two-buffer, rendering and output speed to solve the problem does not match the
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Size: 34816 |
Author: 陈介平 |
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Description: 该源码是有关SpeedTree这个软件的SDK，方便开发D3D的人员用来解析程序代码-SpeedTree 4.1 SDK
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Size: 13616128 |
Author: atlas |
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Description: JecXTree-speed tree generator
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Size: 3228672 |
Author: fiil240 |
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Description: 光线追踪的cuda程序，基于cuda实现，大大加速了速度。-Cuda ray tracing program, based on cuda implementation, greatly accelerating the speed.
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Size: 12288 |
Author: wangpichao |
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