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9 days ago
这个不起眼的小山丘，位在与美国加州著名的酒乡那帕（Napa）仅一山之隔的索诺马（Sonoma）。像周围大部份的土地一样，这个小山丘如今也 是爬满了葡萄藤，但在上世纪 90 年代初期这地方曾经因为受到一种吃葡萄藤的害虫（Phylloxera bug）感染，因此不得不把所有的葡萄藤拔掉，让土地休耕了数年。 这个小山丘位在 12/121 公路旁（同一条公路两个名字），是摄影师 Charles O'Rear 每天回家必经之路。在一个一月的早晨，地面上的青草刚经过了一个月雨水的的浇灌而显得娇翠欲滴，刚放晴的天空还有几片不规则的积云。这个景像和摄影师的本 能，让 Charles 不顾公路上繁忙的交通，直接停在路边掏出他的中幅相机，拍下一张数千万乃至数亿人都见过的照片。猜出是哪一张了吗 ;) Google Street View 蓝天白云自 Windows 95 以来就是 Windows 的主轴，绿色的草地和 Windows 的预设主题则分外搭配，同时占去了半个画面的「地面」让人有一种想要穿过屏幕，在草地上打滚的感觉。 可惜这个影像只有在 Windows 里才看得到了。当微软从 Charles 手中买下照片时，小山丘上已经种回了葡萄，许多按图索骥，寻找这梦幻美景的人，也只能找到上图那种满了葡萄的小山丘。 引用来源 由 Andy Yang 于 engadget26 days ago
A use case(UC) describes "who" can do "what" with the system in question. Ivar Jacobson put forward the idea of usage cases and usage scenarios. There are three key things for UC The actor The system The functional goal, that the actor achieves using the system, the reason for using the system. (The goal must be value to the actor.) Capturing UC scenarios with essential UC descriptions A classic mistake made at this early stage of design is to go into technical detail and commit to a specific user interface design or implementation technology. An essential use case clearly shows the order of events and the responsibilities of the actors and system in a single use case scenario, without committing to technical design decisions. Use cases descriptions <> system requirements documents There are all sorts of reasons why we might need to change software and some of them are inescapable. But there are two reasons that are largely avoidable, Building ...
36 days ago
顺应时代（生存说），就是在变化很快的时代中，辨认出变化慢的因素。能力越是强的，找出的因素则越是守恒。 这个说法和我以前的想法，“在世界上唯一的永恒就是变化”，有了进一步的延伸。83 days ago
MATLAB Toolboxes top Audio - Astronomy - BioMedicalInformatics - Chemometrics - Chaos - Chemistry - Coding - Control - Communications - Engineering - Excel - FEM - Finance - GAs - Graphics - Images - ICA - Kernel - Markov - Medical - MIDI - Misc. - MPI - NNets - Oceanography - Optimization - Plot - Signal Processing - Optimization - Statistics - SVM - etc ... New ZSM (zero sum multinomial) http://mcgillb.user.msu.edu/zsmcode.html Binaural-modeling software for MATLAB/Windows http://www.lifesci.sussex.ac.uk/home/Michael_Akeroyd/download2.html Statistical Parametric Mapping (SPM) http://www.fil.ion.ucl.ac.uk/spm/ext/ BOOTSTRAP MATLAB TOOLBOX http://www.csp.curtin.edu.au/downloads/bootstrap_toolbox.html The DSS package for MATLAB DSS Matlab package contains algorithms for performing linear, deflation and symmetric DSS. http://www.cis.hut.fi/projects/dss/package/ Psychtoolbox http://www.psychtoolbox.org/download.html Multisurface Method Tree with MATLAB ...
