IEEE

Sparse Reconstruction based on K-Sparse Dictionary Learning Method for Bioluminescence Tomography

Abstract: Bioluminescence tomography (BLT) is an important branch of molecular imaging, holds great prospect in biomedical research. However, BLT reconstruction results are often sensitive and ...
IEEE

Conic Hull Fitting-Based Dictionary Matrix Learning for Nonnegative Matrix Factorization

Abstract: Nonnegative matrix factorization (NMF) is a powerful tool for signal processing and machine learning. Geometrically, it can be interpreted as the problem of finding a conic hull, which ...
marktechpost

A Coding Implementation to Train Safety-Critical Reinforcement Learning Agents Offline Using Conservative Q-Learning with d3rlpy and Fixed Historical Data

In this tutorial, we build a safety-critical reinforcement learning pipeline that learns entirely from fixed, offline data rather than live exploration. We design a custom environment, generate a ...
ePHOTOzine

Photography Techniques

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...