Tuning Term Frequency Normalisation for BM25 and DFR Models

The disclosure embraces a method of and apparatus for melting and processing glass suitable for attenuation to continuous fibers or filaments and more particularly to an arrangement having a limited capacity for processing glass providing a highly refined glass for the production of comparatively small quantities of textile fibers or filaments of usual glass compositions and for limited production of textile fibers or filaments of special glasses.