285 citations
3 papers
q-bio.QM2009★ 3 cited
Joint segmentation of many aCGH profiles using fast group LARS
Kevin Bleakley, Jean-Philippe Vert
Array-Based Comparative Genomic Hybridization (aCGH) is a method used to search for genomic regions with copy numbers variations. For a given aCGH profile, one challenge is to accu…
cs.LG2008★ 285 cited
Clustered Multi-Task Learning: A Convex Formulation
Laurent Jacob, Francis Bach, Jean-Philippe Vert
In multi-task learning several related tasks are considered simultaneously, with the hope that by an appropriate sharing of information across tasks, each task may benefit from the…
cs.LG2008★ 51 cited
The optimal assignment kernel is not positive definite
Jean-Philippe Vert
We prove that the optimal assignment kernel, proposed recently as an attempt to embed labeled graphs and more generally tuples of basic data to a Hilbert space, is in fact not alwa…