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286 lines
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286 lines
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<div class="headertitle"><div class="title">arm_svm_example_f32.c</div></div>
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</div><!--header-->
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<div class="contents">
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<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
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<div class="line"><span class="comment">* Copyright (C) 2019-2020 ARM Limited. All rights reserved.</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* $Date: 09. December 2019</span></div>
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<div class="line"><span class="comment">* $Revision: V1.0.0</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
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<div class="line"><span class="comment">* Title: arm_svm_example_f32.c</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* Description: Example code demonstrating how to use SVM functions.</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* Target Processor: Cortex-M/Cortex-A</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
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<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
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<div class="line"><span class="comment">* are met:</span></div>
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<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
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<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
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<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
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<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
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<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
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<div class="line"><span class="comment">* distribution.</span></div>
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<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
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<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
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<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
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<div class="line"><span class="comment">*</span></div>
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<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
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<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
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<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
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<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
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<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
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<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
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<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
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<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
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<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
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<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
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<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
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<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
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<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include <math.h></span></div>
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<div class="line"><span class="preprocessor">#include <stdio.h></span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
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<div class="line"> </div>
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<div class="line"><span class="comment">/* </span></div>
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<div class="line"><span class="comment"> The polynomial SVM instance containing all parameters.</span></div>
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<div class="line"><span class="comment"> Those parameters can be generated with the python library scikit-learn.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"><a id="_a0" name="_a0"></a><a class="code hl_struct" href="structarm__svm__polynomial__instance__f32.html" title="Instance structure for polynomial SVM prediction function.">arm_svm_polynomial_instance_f32</a> <a id="a1" name="a1"></a><a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1510c63c4febec3a2a58a2397e2b738d">params</a>;</div>
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<div class="line"> </div>
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<div class="line"><span class="comment">/*</span></div>
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<div class="line"><span class="comment"> Parameters generated by a training of the SVM classifier</span></div>
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<div class="line"><span class="comment"> using scikit-learn and some random input data.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"><span class="preprocessor">#define NB_SUPPORT_VECTORS 11</span></div>
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<div class="line"> </div>
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<div class="line"><span class="comment">/*</span></div>
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<div class="line"><span class="comment"> Dimension of the vector space. A vector is your feature.</span></div>
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<div class="line"><span class="comment"> It could, for instance, be the pixels of a picture or the FFT of a signal.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"><span class="preprocessor">#define VECTOR_DIMENSION 2</span></div>
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<div class="line"> </div>
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<div class="line"><span class="keyword">const</span> <a class="code hl_typedef" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a id="a2" name="a2"></a><a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1a4a9ec1bdbbde25bacd67104a4af4c5">dualCoefficients</a>[<a id="a3" name="a3"></a><a class="code hl_define" href="arm__svm__example__f32_8c.html#a991d9a139527d1a747541de078ca21c7">NB_SUPPORT_VECTORS</a>]={-0.01628988f, -0.0971605f,</div>
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<div class="line"> -0.02707579f, 0.0249406f, 0.00223095f, 0.04117345f,</div>
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<div class="line"> 0.0262687f, 0.00800358f, 0.00581823f, 0.02346904f, 0.00862162f}; <span class="comment">/* Dual coefficients */</span></div>
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<div class="line"> </div>
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<div class="line"><span class="keyword">const</span> <a class="code hl_typedef" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a id="a4" name="a4"></a><a class="code hl_variable" href="arm__svm__example__f32_8c.html#a78602d493b8c4ec1e76d858b585d8ea7">supportVectors</a>[<a class="code hl_define" href="arm__svm__example__f32_8c.html#a991d9a139527d1a747541de078ca21c7">NB_SUPPORT_VECTORS</a>*<a id="a5" name="a5"></a><a class="code hl_define" href="arm__svm__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>]={ 1.2510991f, 0.47782799f,</div>
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<div class="line"> -0.32711859f, -1.49880648f, -0.08905047f, 1.31907242f,</div>
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<div class="line"> 1.14059333f, 2.63443767f, -2.62561524f, 1.02120701f,</div>
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<div class="line"> -1.2361353f, -2.53145187f,</div>
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<div class="line"> 2.28308122f, -1.58185875f, 2.73955981f, 0.35759327f,</div>
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<div class="line"> 0.56662986f, 2.79702016f,</div>
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<div class="line"> -2.51380816f, 1.29295364f, -0.56658669f, -2.81944734f}; <span class="comment">/* Support vectors */</span></div>
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<div class="line"> </div>
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<div class="line"><span class="comment">/*</span></div>
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<div class="line"><span class="comment"> Class A is identified with value 0.</span></div>
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<div class="line"><span class="comment"> Class B is identified with value 1.</span></div>
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<div class="line"><span class="comment"> </span></div>
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<div class="line"><span class="comment"> This array is used by the SVM functions to do a conversion and ease the comparison</span></div>
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<div class="line"><span class="comment"> with the Python code where different values could be used.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"><span class="keyword">const</span> int32_t <a id="a6" name="a6"></a><a class="code hl_variable" href="arm__svm__example__f32_8c.html#ae76f66a144055c576e6895e411417b63">classes</a>[2]={0,1};</div>
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<div class="line"> </div>
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<div class="line"> </div>
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<div class="line">int32_t <a id="a7" name="a7"></a><a class="code hl_function" href="arm__svm__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
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<div class="line">{</div>
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<div class="line"> <span class="comment">/* Array of input data */</span></div>
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<div class="line"> <a class="code hl_typedef" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> in[<a class="code hl_define" href="arm__svm__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>];</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">/* Result of the classifier */</span></div>
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<div class="line"> int32_t result;</div>
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<div class="line"> </div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">/*</span></div>
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<div class="line"><span class="comment"> Initialization of the SVM instance parameters.</span></div>
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<div class="line"><span class="comment"> Additional parameters (intercept, degree, coef0 and gamma) are also coming from Python.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"> <a id="a8" name="a8"></a><a class="code hl_function" href="group__polysvm.html#gad004464aae8fdecfc985a02a0de6b0af" title="SVM polynomial instance init function.">arm_svm_polynomial_init_f32</a>(&<a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1510c63c4febec3a2a58a2397e2b738d">params</a>,</div>
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<div class="line"> <a class="code hl_define" href="arm__svm__example__f32_8c.html#a991d9a139527d1a747541de078ca21c7">NB_SUPPORT_VECTORS</a>,</div>
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|
<div class="line"> <a class="code hl_define" href="arm__svm__example__f32_8c.html#a98d2e2076140b796ee1cb5f3e77248a7">VECTOR_DIMENSION</a>,</div>
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<div class="line"> -1.661719f, <span class="comment">/* Intercept */</span></div>
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<div class="line"> <a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1a4a9ec1bdbbde25bacd67104a4af4c5">dualCoefficients</a>,</div>
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<div class="line"> <a class="code hl_variable" href="arm__svm__example__f32_8c.html#a78602d493b8c4ec1e76d858b585d8ea7">supportVectors</a>,</div>
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<div class="line"> <a class="code hl_variable" href="arm__svm__example__f32_8c.html#ae76f66a144055c576e6895e411417b63">classes</a>,</div>
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<div class="line"> 3, <span class="comment">/* degree */</span></div>
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<div class="line"> 1.100000f, <span class="comment">/* Coef0 */</span></div>
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<div class="line"> 0.500000f <span class="comment">/* Gamma */</span></div>
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<div class="line"> );</div>
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<div class="line"> </div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">/*</span></div>
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<div class="line"><span class="comment"> Input data.</span></div>
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<div class="line"><span class="comment"> It is corresponding to a point inside the first class.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"> in[0] = 0.4f;</div>
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<div class="line"> in[1] = 0.1f;</div>
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<div class="line"> </div>
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<div class="line"> <a id="a9" name="a9"></a><a class="code hl_function" href="group__polysvm.html#ga5719f32544ecc1b568aaba7f5d237df8" title="SVM polynomial prediction.">arm_svm_polynomial_predict_f32</a>(&<a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1510c63c4febec3a2a58a2397e2b738d">params</a>, in, &result);</div>
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<div class="line"> </div>
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|
<div class="line"> <span class="comment">/* Result should be 0 : First class */</span></div>
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|
<div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
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<div class="line"> printf(<span class="stringliteral">"Result = %d\n"</span>, result);</div>
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<div class="line"><span class="preprocessor">#endif</span></div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">/*</span></div>
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<div class="line"><span class="comment"> This input vector is corresponding to a point inside the second class.</span></div>
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<div class="line"><span class="comment"> */</span></div>
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<div class="line"> in[0] = 3.0f;</div>
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<div class="line"> in[1] = 0.0f;</div>
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<div class="line"> </div>
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<div class="line"> <a class="code hl_function" href="group__polysvm.html#ga5719f32544ecc1b568aaba7f5d237df8" title="SVM polynomial prediction.">arm_svm_polynomial_predict_f32</a>(&<a class="code hl_variable" href="arm__svm__example__f32_8c.html#a1510c63c4febec3a2a58a2397e2b738d">params</a>, in, &result);</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">/* Result should be 1 : Second class */</span></div>
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<div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
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<div class="line"> printf(<span class="stringliteral">"Result = %d\n"</span>, result);</div>
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<div class="line"><span class="preprocessor">#endif</span></div>
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<div class="line"> </div>
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|
<div class="line"><span class="preprocessor">#if !defined(SEMIHOSTING)</span></div>
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<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
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<div class="line"><span class="preprocessor">#endif</span></div>
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<div class="line">}</div>
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<div class="line"> </div>
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<div class="line"> </div>
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<div class="line"> </div>
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</div><!-- fragment --> </div><!-- contents -->
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</div><!-- doc-content -->
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<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
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<ul>
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<li class="footer">
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<script type="text/javascript">
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<!--
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writeFooter.call(this);
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//-->
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</script>
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</li>
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</div>
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</body>
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</html>
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