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Description: A .zip file contains a series of scripts that were used in the MathWorks webinar "Using MATLAB to Develop Portfolio Optimization Models." The scripts generate 3D efficient frontiers for a universe of 44 stocks with time as the third axis. Additional scripts perform various ex-ante and ex-post analyses. Results are generated with and without market adjustments in the data. A readme.txt. file in the .zip folder describes each script and how to use it
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Size: 200704 |
Author: Austin Huang |
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Description: 压缩传感是一个从2006年左右开始兴起的研究领域，它关注于如何采样信号，也就是信号的采样方式或者压缩方式。通过设计一种特殊的采样方案，可以使得采样频率降低为信号的“信息率”，而不是传统的奈奎斯特采样率，于是，实际的采样率可以大大低于奈奎斯特频率，却只损失很少的信息量，依然保持了充足的信息量足以恢复出采样前的原始信号。这个研究思想挑战了奈奎斯特频率的理论极限，会对整个信号处理领域产生极其深远的影响，同时，信号处理的许多应用领域也会随之发生根本性的发展和变化。
-Compressive sensing (CS) is an emerging fi eld based on the revelation that a small
collection of linear projections of a sparse signal contains enough information for sta-
ble, sub-Nyquist signal acquisition. When a statistical characterization of the signal
is available, Bayesian inference can complement conventional CS methods based on
linear programming or greedy algorithms. We perform approximate Bayesian infer-
ence using belief propagation (BP) decoding, which represents the CS encoding matrix
as a graphical model. Fast encoding and decoding is provided using sparse encoding
matrices, which also improve BP convergence by reducing the presence of loops in
the graph. To decode a length-N signal containing K large coeffi cients, our CS-BP
decoding algorithm uses O(K log(N)) measurements and O(N log2
(N)) computation.
Finally, sparse encoding matrices and the CS-BP decoding algorithm can be modifi ed
to support a variety of signal models and measurement noi
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Size: 239616 |
Author: romman |
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Description: Free Source Code for AM & FM modulation
Matlab实现的调幅调频(AM/FM)算法源代码-Free Source Code for AM & FM modulation
Matlab
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Size: 200704 |
Author: 666666 |
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Description: 一种空时贝叶斯压缩感知算法，用在认知无线电中，大大提高了检测概率-Perception of space-time compression of a Bayesian algorithm, used in the cognitive radio, greatly improving the detection probability
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Size: 424960 |
Author: cinlar |
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Description: 无线传感网络中，压缩感知数据恢复的一种贝叶斯分析，也许能用于分布式压缩感知-Wireless sensor networks, compressed sensing data recovery of a Bayesian analysis, may be used for distributed compressed sensing
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Size: 243712 |
Author: Kim |
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Description: 压缩感知程序源码，Blind compressed sensing (BCS)不需要在采样和恢复阶段预先知道稀疏基。源码对于研究压缩感知前沿具有很好的借鉴意义。-The fundamental principle underlying compressed sensing is that a signal, which is sparse under some basis representation, can be recovered from a small number of linear measurements. However, prior knowledge of the sparsity basis is essential for the recovery process. Blind compressed sensing (BCS) avoids the need to know the sparsity basis in both the sampling and the recovery process. That is, BCS aims at recovering an ensemble of vectors, all sparse under the same unknown basis, given small number of linear measurements of these vectors.
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Size: 4096 |
Author: casey |
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Description: 压缩感知的差分量化,此代码是基于块的压缩感知量化，减少了bit率，对压缩感知的量化有起步作用。-compressed sending ，bcs-spl-dpcm
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Size: 17408 |
Author: 陈华 |
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Description: 一种适用于图像的压缩感知采样策略和重建算法，采样策略是基于块的图像稀疏采样矩阵，重建算法为smoothed projected Landweber（SPL）迭代算法。-BCS-SPL combines block-based compressed-sensing sampling (BCS) of an image with a smoothed projected-Landweber (SPL) iterative reconstruction. Sampling is driven by random matrices applied on a block-by-block basis, while the reconstruction is a variant of projected Landweber (PL) reconstruction (also known as iterative hard thresholding (IHT)) that incorporates a smoothing operation (Wiener filtering) intended to reducing blocking artifacts. In essence, this filtering operation imposes smoothness in addition to the sparsity inherent to PL.
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Size: 1163264 |
Author: 孔德地 |
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Description: MS-BCS-SPL一种新的压缩感知重构算法,相比TVAL3要好的多-compressive senor
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Size: 1164288 |
Author: ee |
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Description: WordPress插件，将附件保存于百度云存储BCS上，并在BAE上支持xmlrpc。最新版支持反盗链功能！
更新历史
2013.6.10更新v1.2.1
修复上一版中的bug.
增加反盗链设置，可自行选择是否设置反盗链，并可自己设置域名.-The WordPress plugin, save the attachment to the Baidu BCS cloud storage, and support for XMLRPC in BAE. The latest version supports anti Daolian function!
Update history
2013.6.10 update V1.2.1
Repair the previous version of the bug.
To increase the anti Daolian settings, can choose whether to set breakpoints, and can set up their own domain name.
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Size: 53248 |
Author: hldong93 |
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Description: 一个基础贝叶斯变换的压缩感知，包含一个源代码和一个一维信号处理的例子和两个二维图像的例子-The basic BCS implemented via a variational Bayesian approach. The package includes the core VB-BCS code, one example of a 1-dimensional signal and two examples of 2-dimensional images.
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Size: 80896 |
Author: 我去 |
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Description: 这是用于创建水平标尺线程序，command:BCS-This is used to create a horizontal scale line program, command:BCS
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Size: 1024 |
Author: Andy |
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Description: OMP,MP,COsamp压缩感知算法，值得初学者好好学习。是入门的好资源。(OMP, MP,CoSamp are the compressive senisng algorithms, which are studied for students.)
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Size: 16384 |
Author: 微笑_PASTA
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Description: MH-BCS-SPL是一种多重假设版本的BCS-SPL，其重建是通过从相邻块中剔除多次预测产生的测量域残差驱动的。(MH-BCS-SPL is a multihypothesis version of BCS-SPL with reconstruction driven by the measurement-domain residual resulting from multiple predictions culled from neighboring blocks.)
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Size: 2725888 |
Author: 钟易xxxx |
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Description: BCS-SPL将图像的基于块的压缩感测采样（BCS）与平滑的投影Landweber（SPL）迭代重建相结合。采样是通过逐块应用随机矩阵来驱动的，而重建则是预期的Landweber（PL）重建（也称为迭代硬阈值（IHT））的变体，其结合平滑操作（维纳滤波）减少块效应。实质上，除了PL所固有的稀疏性之外，这种滤波操作还能提供平滑性。(BCS-SPL combines block-based compressed-sensing sampling (BCS) of an image with a smoothed projected-Landweber (SPL) iterative reconstruction. Sampling is driven by random matrices applied on a block-by-block basis, while the reconstruction is a variant of projected Landweber (PL) reconstruction (also known as iterative hard thresholding (IHT)) that incorporates a smoothing operation (Wiener filtering) intended to reducing blocking artifacts. In essence, this filtering operation imposes smoothness in addition to the sparsity inherent to PL.)
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Size: 1162240 |
Author: 钟易xxxx |
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Description: MC-BCS-SPL是BCS-SPL的运动补偿版本，采用视频的帧到帧残差重建。(MC-BCS-SPL is a motion-compensated version of BCS-SPL employing frame-to-frame residual reconstruction for video.)
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Size: 1676288 |
Author: 钟易xxxx |
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Description: MS-BCS-SPL是BCS-SPL的多尺度版本，它在小波变换的领域内部署了BCS。(MS-BCS-SPL is a multiscale version of BCS-SPL that deploys BCS within the domain of a wavelet transform.)
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Size: 1164288 |
Author: 钟易xxxx |
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Description: BCS-SPL-DPCM将DPCM和均匀标量量化应用于BCS-SPL，以从BCS测量产生压缩比特流。(BCS-SPL-DPCM applies DPCM and uniform scalar quantization to BCS-SPL to produce a compressed bitstream from the BCS measurements.)
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Size: 17408 |
Author: 钟易xxxx |
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Description: Bcs algorithm for matlab
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Size: 199680 |
Author: Rezaalinejad |
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Description: 仿真分析了贝叶斯算法以及FOCUSS算法对信号处理的性能，并比较了这两种算法的结果(The performance of Bayesian algorithm and FOCUSS algorithm for signal processing is simulated and analyzed, and the results of the two algorithms are compared.)
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Size: 201728 |
Author: XIAO-MAN |
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