Title
Hierarchical Topic Models for Language-based Video Hyperlinking
Abstract
We investigate video hyperlinking based on speech transcripts, leveraging a hierarchical topical structure to address two essential aspects of hyperlinking, namely, serendipity control and link justification. We propose and compare different approaches exploiting a hierarchy of topic models as an intermediate representation to compare the transcripts of video segments. These hierarchical representations offer a basis to characterize the hyperlinks, thanks to the knowledge of the topics who contributed to the creation of the links, and to control serendipity by choosing to give more weights to either general or specific topics. Experiments are performed on BBC videos from the Search and Hyperlinking task at MediaEval. Link precisions similar to those of direct text comparison are achieved however exhibiting different targets along with a potential control of serendipity.
Year
DOI
Venue
2015
10.1145/2802558.2814642
SLAM@ACM Multimedia
Field
DocType
Citations 
Computer science,Hyperlink,Topic model,Intermediate language,Hierarchy,Multimedia,Serendipity
Conference
2
PageRank 
References 
Authors
0.37
7
6
Name
Order
Citations
PageRank
Anca-Roxana Simon1163.74
remi bois283.84
guillaume gravier31413127.38
Pascale Sébillot413921.00
Emmanuel Morin54216.13
Sien Moens6132.02