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Brian (software)
Brian is an open source Python package for developing simulations of networks of spiking neurons. Version 1 was developed by Dan Goodman and Romain Brette, and version 2 is being developed primarily by Marcel Stimberg.
==Details==
Brian is aimed at researchers developing models based on networks of spiking neurons. The design is aimed at minimizing users' development time, with execution speed a secondary goal.〔Goodman and Brette 2009〕 Users specify neuron models by giving their differential equations in standard mathematical form, create groups of neurons and connect them via synapses. The intent is to make the process as flexible as possible, so that researchers are not restricted to using neuron models already built into the simulator. The entire simulator is written in Python, using the NumPy and SciPy numerical and scientific computing packages. Parts of the simulator can optionally be run using C code generated on the fly. Computationally, Brian uses vectorization techniques, so that for large numbers of neurons, execution speed is of the same order of magnitude as C code.〔
Version 2 of Brian (currently in development) is based around the concept of code generation: users specify the model in Python but behind the scenes Brian generates, compiles and runs code in one of several languages (including Python, Cython and C++). This enables better performance than Brian 1, and additionally allows the new "standalone" mode in which Brian generates an entire C++ source code tree with no dependency on Brian. This allows Brian to be run on platforms where Python is not available (for example, on a robot). The code generation mechanism is extensible, and there are now projects underway to generate code to run on GPGPU and Android.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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