This is reasonable to expect because an additional letter is made available with zero finger travel distance. When home row is given an extra character key, the base effort component drops significantly from 0.510 (optimized, QFMLWY) to 0.382 (optimized, QGMLWB). Keep in mind that the difference between the optimized layouts is the additional character key on home row and mobility of ZXCV. The typing effort of the fully optimized layouts are compared in the table below and contrasted with QWERTY. For each optimization, multiple simulations converged on the reported layout. Each simulation lasted for >15,000 iterations and used k=10 and t 0=10. For the full optimization described here, I ran the simulation at least 10,000 times. This uncertainty about global minimum discovery is present in all stochastic simulations of NP-hard problems (problem in which all potential solutions must be visited to determine a unequivocaly determine where the global minimum lies). How do I know that the simulation has found a global minimum - in other words, the layout with the minimum effort? I don't. In particular, the home row is nearly identical, except where an additional letter key is made available in place of the key in the Colemak-like optimizations. QGMLWY - this is similar to the layout above, but keeps ZXCV in placeĮach of these layouts is shown below.QGMLWB - this optimized layout uses a Colemak-like character layout.QFMLWY - this is best layout obtained by relocating all QWERTY letters.There are three full optimizations presented here, differing only in the location of punctuation and the position of ZXCV keys. Optimization did not place a limit on how many keys could be In contrast to the partial optimization, full Use of the pinky is reduced and hand alternation is increased over popular alternatives like Colemak. Each provides an optimial typing experience with a slightly different letter mask. Three fully optimized layouts are presented here. Full Optimization - Convergence and Neighbouring Solutions
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