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                                     <td class="program-sessions">11:00 - 11:10am</td>
-                                    <td class="program-sessions">P <i> Cost-based Data Prefetching and Scheduling in Big Data Platforms over Tiered Storage Systems </i> 
+                                    <td class="program-sessions"> <i> Cost-based Data Prefetching and Scheduling in Big Data Platforms over Tiered Storage Systems </i> 
                                         <br> Herodotou, Herodotos *; Kakoulli, Elena 
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