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ICML
2008
IEEE
15 years 11 months ago
Expectation-maximization for sparse and non-negative PCA
We study the problem of finding the dominant eigenvector of the sample covariance matrix, under additional constraints on the vector: a cardinality constraint limits the number of...
Christian D. Sigg, Joachim M. Buhmann
ISBI
2004
IEEE
15 years 11 months ago
Enhancement of Microtubules In EM Tomography
The interpretation of the EM tomography of microtubules is challenging due to the low SNR and low contrast of the volume data. Therefore, image enhancement is crucial for the subs...
Ming Jiang 0004, Qiang Ji, Bruce F. McEwen
WWW
2007
ACM
15 years 10 months ago
Multiway SLCA-based keyword search in XML data
Keyword search for smallest lowest common ancestors (SLCAs) in XML data has recently been proposed as a meaningful way to identify interesting data nodes in XML data where their s...
Chong Sun, Chee Yong Chan, Amit K. Goenka
WWW
2004
ACM
15 years 10 months ago
The powerrank web link analysis algorithm
The web graph follows the power law distribution and has a hierarchy structure. But neither the PageRank algorithm nor any of its improvements leverage these attributes. In this p...
Yizhou Lu, Benyu Zhang, Wensi Xi, Zheng Chen, Yi L...
WWW
2001
ACM
15 years 10 months ago
Seeing the whole in parts: text summarization for web browsing on handheld devices
We introduce five methods for summarizing parts of Web pages on handheld devices, such as personal digital assistants (PDAs), or cellular phones. Each Web page is broken into text...
Orkut Buyukkokten, Hector Garcia-Molina, Andreas P...