On-device research index

arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,695 papers · 148 categories

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2 results for “quasi-sparse”

A Generalized Proportionate-Type Normalized Subband Adaptive Filtereess.SP

A new filter design improves system identification accuracy.

problem Improving system identification accuracy for various system types.

method Generalized proportionate-type normalized subband adaptive filter (GPtNSAF) using least squares on subband errors with a sparsity penalty.

result GPtNSAF benefits from increasing subbands more than sparsity for quasi-sparse or dispersive systems, and both aspects are complementary for sparse systems.

system identification adaptive filtering subband processing sparsity quasi-sparse

2021-11-17abs ↗pdf ↗

High-Dimensional Private Empirical Risk Minimization by Greedy Coordinate Descentcs.LG

New algorithm improves privacy in high-dimensional machine learning models.

problem Privacy issues in learning large machine learning models.

method Differentially private greedy coordinate descent (DP-GCD) algorithm.

result Achieves logarithmic dependence on dimension for quasi-sparse solutions.

Privacy Empirical Risk Minimization Greedy Coordinate Descent Differential Privacy High Dimensional Learning

2022-07-04abs ↗pdf ↗