58 citations · 336 across the 38 of their papers we have counts for
Showing 2016 · cs.ITShow all
3 papers · 2 filters
cs.IT2016
Sampling approach to sparse approximation problem: determining degrees of freedom by simulated annealing
Tomoyuki Obuchi, Yoshiyuki Kabashima
The approximation of a high-dimensional vector by a small combination of column vectors selected from a fixed matrix has been actively debated in several different disciplines. In…
cs.IT2016★ 5 cited
Sparse approximation problem: how rapid simulated annealing succeeds and fails
Tomoyuki Obuchi, Yoshiyuki Kabashima
Information processing techniques based on sparseness have been actively studied in several disciplines. Among them, a mathematical framework to approximately express a given datas…
cs.IT2016★ 58 cited
Cross validation in LASSO and its acceleration
Tomoyuki Obuchi, Yoshiyuki Kabashima
We investigate leave-one-out cross validation (CV) as a determinator of the weight of the penalty term in the least absolute shrinkage and selection operator (LASSO). First, on the…