基于项目的协同过滤算法

RS码的matlabb仿真非常有帮助的东西，完整源代码。 (RS code matlabb simulation is very helpful things, complete source code.)

IR project ,search in some data

模拟退火算法，模拟退火算法来源于固体退火原理，将固体加温至充分高，再让其徐徐冷却，加温时，固体内部粒子随温升变为无序状，内能增大，而徐徐冷却时粒子渐趋有序，在每个温度都达到平衡态，最后在常温时达到基态，内能减为最小。(Simulated annealing algorithm, simulated annealing algorithm derived from the principle of solid annealing, heating the solid to the full high, let it slowly cooling, heating, the solid particles with the internal temperature rise to disorder symptoms, which can be increased, and slowly gradually cooling particles in an orderly manner, at each temperature to reach equilibrium, and finally at room temperature reaches the ground state, which can be reduced to a minimum.)

digital signal processing

该模块实现信号的相位调制和解调，进而的到原始的输入信号。(This module implements the phase modulation and demodulation signal, and then to the original input signal.)

多种通信模式的仿真，由CONCORDIA UNIVERSITY的教授编制。(Simulation codes programmed by professor in Concordia University.)

说明：  对不稳定数据进行去趋势处理，得到平滑拟合曲线。(The unstable data were de trended to obtain a smooth fitting curve.)

Set of files about subspace method and pca

ieee spectrum 2013 september

Mathematic model of acoustic field for ultrasonic transducers according to "Ultrasonic beam structures in fluid media" paper