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CHI
2010
ACM
16 years 1 months ago
What do you know?: experts, novices and territoriality in collaborative systems
When experts participate in collaborative systems, tension may arise between them and novice contributors. In particular, when experts perceive novices as a bother or a threat, th...
Jennifer Thom-Santelli, Dan Cosley, Geri Gay
ASUNAM
2009
IEEE
16 years 1 months ago
Combining Social Network Analysis and Sentiment Analysis to Explore the Potential for Online Radicalisation
The increased online presence of jihadists has raised the possibility of individuals being radicalised via the Internet. To date, the study of violent radicalisation has focused o...
Adam Bermingham, Maura Conway, Lisa McInerney, Nei...
ICML
2009
IEEE
16 years 1 months ago
Sparse higher order conditional random fields for improved sequence labeling
In real sequence labeling tasks, statistics of many higher order features are not sufficient due to the training data sparseness, very few of them are useful. We describe Sparse H...
Xian Qian, Xiaoqian Jiang, Qi Zhang, Xuanjing Huan...
CEC
2009
IEEE
16 years 1 months ago
A Bacterial Evolutionary Algorithm for automatic data clustering
This paper describes an evolutionary clustering algorithm, which can partition a given dataset automatically into the optimal number of groups through one shot of optimization. The...
Swagatam Das, Archana Chowdhury, Ajith Abraham
ICASSP
2009
IEEE
16 years 1 months ago
Incorporating spectral subtraction and noise type for unvoiced speech segregation
Unvoiced speech poses a big challenge to current monaural speech segregation systems. It lacks harmonic structure and is highly susceptible to interference due to its relatively w...
Ke Hu, DeLiang Wang