diff --git a/templates/index.html.ep b/templates/index.html.ep
index 5ede4fe..f50078c 100644
--- a/templates/index.html.ep
+++ b/templates/index.html.ep
@@ -134,7 +134,7 @@
                      { "data": "rank", type: "allnumeric" },
                      { "data": "pos", width: "7%", sClass: "dt-center mono compact", render: function ( data, type, row ) {return bitvec2window(data, row.heat, row.word) }},
                      { "data": "max",  render: function ( data, type, row ) {return data.toFixed(3) }},
-                     { "data": "conorm", render: function ( data, type, row ) {return data.toFixed(3) }},
+                     { "data": "average", render: function ( data, type, row ) {return data.toFixed(3) }},
                      { "data": "prob", type: "scientific", render: function ( data, type, row ) {return data.toExponential(3) }  },
                      { "data": "cprob", type: "scientific", render: function ( data, type, row ) {return data.toExponential(3) }  },
                      { "data": "overall", type: "scientific", render: function ( data, type, row ) {return data.toExponential(3) } },
@@ -323,7 +323,7 @@
      }
 
      .ui-tooltip-content {
-       font-size: 9pt;
+       font-size: 10pt;
        color: #222222;
      }
 
@@ -820,11 +820,11 @@
                 <tr>
                   % if($collocators) {
                     <th>#</th>
-                    <th align="center" title="The columns (c) around the target are considered for summation are marked with *.">w'</th>
-                    <th align="right" title="Raw (max.) activation of the collocator in the output layers.">max(a)</th>
-                    <th title="Co-normalized raw activation sum of the collocator in the selected columns." align="right">⊥Σa</th>
-                    <th title="Sum of activations over the selected colunns normalized by the total activation sum of the selected columns." align="right">Σa/Σc</th>
-                    <th title="Sum of the column normalized activations over the selected colunns." align="right">Σ(a/c)</th>
+                    <th align="center" title="Activation of the respective collocator in the columns around the target normalized by its maximum (red). Columns selected by the auto-focus funtion (which window of all possible column-combinations maximizes ⊥(a/c)?) are marked with +. Click on the column postions to lauch a KorAP query with target word and collocator in the respective position.">w'</th>
+                    <th align="right" title="Maximum activation of the collocator anywhere in the output layer.">max(a)</th>
+                    <th title="Average raw activation of the collocator in the columns selected by auto-focus." align="right">⟨a⟩</th>
+                    <th title="Sum of activations over the selected colunns normalized by the total activation sum of the selected columns." align="right">Σa/Σw'</th>
+                    <th title="Co-norm of the column-normalized activations over the colunns selected by the auto-focus." align="right">⊥(a/c)</th>
                     <th title="Sum of the activations over the whole window normalized by the total window sum (no auto-focus)." align="right">Σa/Σw</th>
                     <th align="left">collocator</th>
                   % }