Distributionally Robust Batch Contextual Bandits

Policy learning using historical observational data are an important problem that has widespread applications. Examples include selecting offers, prices, or advertisements for consumers; choosing b…

A W-Type Double-Cladding IR Fiber With Ultra-High Numerical Aperture

We have prepared a novel fiber consisting of three different glasses with W-type double-cladding structure and constant core-to-cladding ratio by the extrusion method. An ultra-high numerical apert…

Low-Loss Chalcogenide Fiber Prepared by Double Peeled-Off Extrusion