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MM
2010
ACM
207views Multimedia» more  MM 2010»
13 years 9 months ago
TalkMiner: a search engine for online lecture video
TalkMiner is a search engine for lecture webcasts. Lecture videos are processed to recover a set of distinct slide images and OCR is used to generate a list of indexable terms fro...
John Adcock, Matthew Cooper, Laurent Denoue, Hamed...
IANDC
2006
121views more  IANDC 2006»
13 years 9 months ago
Comparing operational models of name-passing process calculi
We study three operational models of name-passing process calculi: coalgebras on (pre)sheaves, indexed labelled transition systems, and history dependent automata. The coalgebraic...
Marcelo P. Fiore, Sam Staton
CIKM
2010
Springer
13 years 7 months ago
Decomposing background topics from keywords by principal component pursuit
Low-dimensional topic models have been proven very useful for modeling a large corpus of documents that share a relatively small number of topics. Dimensionality reduction tools s...
Kerui Min, Zhengdong Zhang, John Wright, Yi Ma
PVLDB
2010
122views more  PVLDB 2010»
13 years 7 months ago
On Graph Query Optimization in Large Networks
The dramatic proliferation of sophisticated networks has resulted in a growing need for supporting effective querying and mining methods over such large-scale graph-structured da...
Peixiang Zhao, Jiawei Han

Tutorial
905views
15 years 9 months ago
Location-aware Query Processing and Optimization
The wide spread use of cellular phones, handheld devices, and GPS-like technology enables location-aware environments where virtually all objects are aware of their locations. Loca...