of&nbsp;the&nbsp;minimal&nbsp;ball</span><br>
<span class=help>&nbsp;&nbsp;enclosing&nbsp;data&nbsp;X&nbsp;mapped&nbsp;into&nbsp;a&nbsp;feature&nbsp;space&nbsp;induced&nbsp;</span><br>
<span class=help>&nbsp;&nbsp;by&nbsp;a&nbsp;given&nbsp;kernel.&nbsp;The&nbsp;problem&nbsp;leads&nbsp;to&nbsp;a&nbsp;special&nbsp;instance&nbsp;</span><br>
<span class=help>&nbsp;&nbsp;of&nbsp;the&nbsp;Quadratic&nbsp;Programming&nbsp;task&nbsp;which&nbsp;is&nbsp;solved&nbsp;by&nbsp;the&nbsp;</span><br>
<span class=help>&nbsp;&