upc at mediaeval 2014 social event detection task
TRANSCRIPT
UPC at MediaEval 2014Social Event Detection
Daniel Manchon-VizueteIrene Gris-SarabiaXavier Giró-i-Nieto
Results Reverse Geocoding
Hypernym F1 NMI Div. F1
0.9240 0.9820 0.9231
0.9165 0.9793 0.9155
0.8141 0.9432 0.8127
0.8112 0.9393 0.8097
º
Emily
t
John
t
Username: john
Title=
GPS=(43.3701, -8.39646)
tags=Festival, stones,
rock
Username: emily
Title=Coruña Music Festival
GPS=( no data )
tags= stones, live, marvellous
Username: emily
Title=
GPS=(41.4, 2.10)
tags= sound
Username: emily
Title=
GPS=(43.38, -8.40)
tags= deerhunter, fantastic
t
[Platt et al, “PhotoTOC”, 2003] t
gN...
..
....
..
.
d d
tags= stones, live,
marvellous, emily,
fantastic
tags= sound, Barcelonatags= deerhunter, fantastic,
A coruña, emilytags= Festival, stones,
rock, john, Coruña C
User and time-based oversegmentation…
...and sequential merging of mini-clusters.
t
t
Natural Language Toolkit (NLTK)
Sponsored by:
tag expansion with user ID