Thread: [Dclib-devel] Multiclass classification
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From: Mani A. <man...@gm...> - 2016-02-04 04:04:57
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Hi, I am looking for a multiclass classification algorithm in Dlib that can classify inputs into three classes. The inputs are 3-dimensional (x,y,z) and like the following picture. After the training phase, the algorithm should be able to classify the input into class 1,2 or 3. Can you please give me a hint or show me a skeleton example that I can start with? Thanks! - Mani |
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From: Davis K. <dav...@us...> - 2016-02-04 11:52:21
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I would try the one_vs_one_trainer. See http://dlib.net/ml.html#one_vs_one_trainer On Wed, Feb 3, 2016 at 11:04 PM, Mani Amoozadeh <man...@gm...> wrote: > Hi, > > > > I am looking for a multiclass classification algorithm in Dlib that can > classify inputs into three classes. > > The inputs are 3-dimensional (x,y,z) and like the following picture. After > the training phase, the algorithm > > should be able to classify the input into class 1,2 or 3. > > > > > > Can you please give me a hint or show me a skeleton example that I can > start with? > > Thanks! > > > > - Mani > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Dclib-devel mailing list > Dcl...@li... > https://lists.sourceforge.net/lists/listinfo/dclib-devel > > |
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From: Mani A. <man...@gm...> - 2016-02-04 18:32:57
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Thanks! I also noticed there is a <b>one_vs_all</b> trainer
(<a class="moz-txt-link-freetext" href="http://dlib.net/ml.html#one_vs_all_trainer">http://dlib.net/ml.html#one_vs_all_trainer</a>)<br>
Isn't it more efficient and faster than <b>one_vs_one</b> trainer
for multiclass classification since it does not train N*(N-1)/2
binary classifiers.<br>
<br>
<br>
- Mani<br>
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<br>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">Subject: </th>
<td>Multiclass classification</td>
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<td>Wed, 3 Feb 2016 20:04:47 -0800</td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">From: </th>
<td>Mani Amoozadeh <a class="moz-txt-link-rfc2396E" href="mailto:man...@gm..."><man...@gm...></a></td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:dcl...@li...">dcl...@li...</a></td>
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inline !important; float: none;">I would try the
one_vs_one_trainer.=C2=A0 See=C2=A0 </span><a
href="=3D%22http://dlib.net/ml.html#one_vs_one_trainer%22"
style="font-family: 'Times New Roman'; font-size: medium;
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-webkit-text-stroke-width: 0px;"><a class="moz-txt-link-freetext" href="http://dlib.net/ml.html#one=">http://dlib.net/ml.html#one=</a>
_vs_one_trainer</a><br>
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<td>Wed, 3 Feb 2016 20:04:47 -0800</td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">From: </th>
<td>Mani Amoozadeh <a class="moz-txt-link-rfc2396E" href="mailto:man...@gm..."><man...@gm...></a></td>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am looking for a multiclass
classification algorithm in Dlib that can classify inputs into
three classes.<o:p></o:p></p>
<p class="MsoNormal">The inputs are 3-dimensional (x,y,z) and
like the following picture. After the training phase, the
algorithm<o:p></o:p></p>
<p class="MsoNormal">should be able to classify the input into
class 1,2 or 3.<br>
</p>
<p class="MsoNormal">Can you please give me a hint or show me a
skeleton example that I can start with?<o:p></o:p></p>
<p class="MsoNormal">Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- Mani<o:p></o:p></p>
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From: Mani A. <man...@gm...> - 2016-02-04 18:43:53
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Thanks! I also noticed there is a *one_vs_all* trainer (http://dlib.net/ml.html#one_vs_all_trainer) Isn't it more efficient and faster than *one_vs_one* trainer for multiclass classification since it does not train N*(N-1)/2 binary classifiers. - Mani -------- Forwarded Message -------- Subject: Multiclass classification Date: Wed, 3 Feb 2016 20:04:47 -0800 From: Mani Amoozadeh <man...@gm...> To: dcl...@li... I would try the one_vs_one_trainer.=C2=A0 See=C2=A0 http://dlib.net/ml.html#one= _vs_one_trainer -------- Forwarded Message -------- Subject: Multiclass classification Date: Wed, 3 Feb 2016 20:04:47 -0800 From: Mani Amoozadeh <man...@gm...> To: dcl...@li... Hi, I am looking for a multiclass classification algorithm in Dlib that can classify inputs into three classes. The inputs are 3-dimensional (x,y,z) and like the following picture. After the training phase, the algorithm should be able to classify the input into class 1,2 or 3. Can you please give me a hint or show me a skeleton example that I can start with? Thanks! - Mani |
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From: Davis K. <dav...@us...> - 2016-02-04 20:17:29
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Yes, you could try that one as well and it might be faster, depending on the value of N. |
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