="string">'Plain'</span>, <span class="string">'With biases'</span>, <span class="string">'With implicit feedback'</span>, <span class="string">'With temporal dynamics'</span>, <span class="string">'Location'</span>, <span class="string">'NorthEast'</span>);
        set(legend_h, <span class="string">'FontSize'</span>, 12, <span class="string">'FontWeight'</span>, <span class="string">'bold'</span>);
        set(legend_h, <span class="string">'Color'</span>, <span class="string">'w'</span>);
        set(gca