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0 $begingroup$ Given a convex body $K$ and a point $y$ outside the convex body (in the ambient space), the Bregman projection of $y$ , with respect to the regularizer $R$ , is defined as $x=rm{argmin}{B_{R}left(omega, yright):omega in K}$ where, $B_{R}left(omega, yright)=Rleft(omegaright)+Rleft(yright)-nabla Rleft(yright)'left(omega-yright)$ Then how can I show the following $[nabla R(x) − nabla R(y)]' (omega − x) >0$ Please give me some hint. self-learning divergence share | cite | improve this question edited Jan 7 at 9:17 Bernard 119k 7 40 113

10 2 I have upgraded website from 2.1.6 to 2.2.1 and facing Unable to serialize value error in frontend and backend. {"0":"Unable to serialize value.","1":"#0 /var/www/vhosts/demo.com/eiselec/vendor/magento/framework/Translate.php(494): Magento\Framework\Serialize\Serializer\Json->serialize(Array)n #1 /var/www/vhosts/demo.com/eiselec/vendor/magento/framework/Translate.php(190): Magento\Framework\Translate->_saveCache()n #2 /var/www/vhosts/demo.com/eiselec/vendor/magento/framework/App/Area.php(244): Magento\Framework\Translate->loadData(NULL, false)n #3 /var/www/vhosts/demo.com/eiselec/vendor/magento/framework/App/Area.php(215): Magento\Framework\App\Area->_initTranslate()n #4 /var/www/vhosts/demo.com/eiselec/vendor/magento/framework/App/Area.php(142): Magento\Fra