20 citations · 27 across the 4 of their papers we have counts for
4 papers
Feedback-Controlled Sequential Lasso Screening
Yun Wang, Xu Chen, Peter J. Ramadge
One way to solve lasso problems when the dictionary does not fit into available memory is to first screen the dictionary to remove unneeded features. Prior research has shown that…
Deep Haar Scattering Networks
Xiuyuan Cheng, Xu Chen, Stephane Mallat
An orthogonal Haar scattering transform is a deep network, computed with a hierarchy of additions, subtractions and absolute values, over pairs of coefficients. It provides a simpl…
Unsupervised Deep Haar Scattering on Graphs
Xu Chen, Xiuyuan Cheng, Stéphane Mallat
The classification of high-dimensional data defined on graphs is particularly difficult when the graph geometry is unknown. We introduce a Haar scattering transform on graphs, whic…
Predicting a User's Next Cell With Supervised Learning Based on Channel States
Xu Chen, François Mériaux, Stefan Valentin
Knowing a user's next cell allows more efficient resource allocation and enables new location-aware services. To anticipate the cell a user will hand-over to, we introduce a new ma…