Adds video for week 13

index.md

@@ -46,7 +46,7 @@ Moodle | Midterm, Quizzes, Final Exam [[link](https://moodle.epfl.ch/course/view
 | 10   | 23/11     | -           |                             | Taxonomy Induction  [[slides][10p], [lecture][10v]]|
 | 11   | 30/11     | -           | Graph Analytics             | Link-based Ranking  [[slides][11p], [lecture][11v]]|
 | 12   | 7/12      | -           |                             | Knowledge Inferences  [[slides][12p], [lecture][12v]]|
-| 13   | 14/12     | -           | Data Indexing and mining    | Indexing for Information retrival  [[slides][13p]]|
+| 13   | 14/12     | -           | Data Indexing and mining    | Indexing for Information retrival  [[slides][13p], [lecture][13v]]|
 | 14   | 21/12     | -           |                             | Association Rule Mining  |
 
 
@@ -162,6 +162,7 @@ Please contact us for any organisational questions or questions related to the c
 [10v]:https://mediaspace.epfl.ch/media/DIS+-+Week+10/0_7nu7640p/29734
 [11v]:https://mediaspace.epfl.ch/media/DIS+-+Week+11/0_0wt0hvfa/29734
 [12v]:https://mediaspace.epfl.ch/media/DIS+-+Week+12/0_h2vma9g1/29734
+[13v]:https://mediaspace.epfl.ch/media/DIS+-+Week+13/0_f5siltb2/29734
 
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