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Diffstat (limited to 'lulua/data/report')
| -rw-r--r-- | lulua/data/report/index.html | 104 |
1 files changed, 100 insertions, 4 deletions
diff --git a/lulua/data/report/index.html b/lulua/data/report/index.html index d240ba7..db80c58 100644 --- a/lulua/data/report/index.html +++ b/lulua/data/report/index.html @@ -398,6 +398,101 @@ </div> </div> + <div id="ar-alramly" class="pure-g flexreverse"> + <div class="pure-u-1 pure-u-md-1-2"> + </div> + <div class="pure-u-1 pure-u-md-1-2" lang="en"> + <div class="lbox"> + <h3><a href="#ar-alramly">Al-Ramly et al</a></h3> + <p> + One of the eariest accounts can be found in the article <a + href="https://doi.org/10.1016/S1474-6670(17)64475-6">Statistical + Distribution of Arabic Letters Aids to the Design of a New + Keyboard</a> by Al-Ramly et al published in 1980. + <!-- --> + The Arabic half of the proposed bi-lingual layout seems to be + hand-optimized based on several metrics including character + frequencies – without mentioning a source for them though – visual + similarity (“letter groups”) and their position on previous + layouts. + <!-- --> + It tries to balance load between hands, assign more work to index + and middle fingers and place common letters in the home row. + <!-- --> + However the asymmetry given in the article, 0.032, cannot be + reproduced here. + <!-- --> + For the most part the layout lacks combining and pre-combined + characters, a task that is left to “machine intelligence” making it + hard to use nowadays. + </p> + <p> + While the layout distributes load between fingers quite well it + favors the left hand by assigning <bdo dir="ltr" lang="ar">ا</bdo> + and <bdo dir="ltr" lang="ar">ل</bdo> to it. + <!-- --> + The decision to place <bdo dir="ltr" lang="ar">ث</bdo> in a very + prominent spot seems weird, given it only accounts for 0.5% of all + symbols, even in their own analysis. + </p> + </div></div> + </div> + + <figure> + <div class="lbox"> + <img src="ar-alramly-heat.svg"> + {{ fingerhandstats(layoutstats['ar-alramly']) }} + </div> + </figure> + + <div id="ar-idlebi" class="pure-g flexreverse"> + <div class="pure-u-1 pure-u-md-1-2"> + </div> + <div class="pure-u-1 pure-u-md-1-2" lang="en"> + <div class="lbox"> + <h3><a href="#ar-idlebi">Idlebi et al</a></h3> + <p> + Another article from the early days of computers published in 1990 + is <a + href="https://archive.org/details/computers_and_the_arabic_language_1990/page/n112/mode/2up">Design + of Arabic Keyboard Layout Based on Statistical Properties of Arabic + Characters</a> by Idlebi et al. + <!-- --> + They present two examples of programmatically optimized layouts and + account for character and bigram frequencies based on a corpus of + 100.000 characters, finger movement time of unknown origin and finger + load. + </p> + <p> + Unfortunately the results use 12 keys per row and are not suitable + for use with current European keyboards, which usually feature only 11 keys + in the bottom row. + <!-- --> + Thus the layout displayed below lacks the Arabic question mark and + comma in the bottom right. + <!-- --> + Probably due to their unusual assumption that middle- and + ring-finger rest in the top row their results are suboptimal, + placing both <bdo dir="ltr" lang="ar">ا</bdo> and <bdo dir="ltr" + lang="ar">ي</bdo> in the top row. + <!-- --> + Their analysis notices this and suggests improved positions for + both characters, but these are not actually implemented. + <!-- --> + The big asymmetry is caused by placing <bdo dir="ltr" lang="ar">ا + ل ي</bdo> and <bdo dir="ltr" lang="ar">و</bdo>, four of the five + most frequent letters, on the right hand side. + </p> + </div></div> + </div> + + <figure> + <div class="lbox"> + <img src="ar-idlebi-heat.svg"> + {{ fingerhandstats(layoutstats['ar-idlebi']) }} + </div> + </figure> + <div id="ar-malas" class="pure-g flexreverse"> <div class="pure-u-1 pure-u-md-1-2"> </div> @@ -405,9 +500,10 @@ <div class="lbox"> <h3><a href="#ar-malas">Malas et al</a></h3> <p> - The work by Malas et al. (2008), - <a href="https://pdfs.semanticscholar.org/1bf8/74dcaa7f21c2cc3c6c5e526b61a9ee352bba.pdf">Toward Optimal Arabic Keyboard Layout Using Genetic Algorithm</a>, - presents an alternative layout generated by a genetic algorithm. + About 20 years later (2008) Malas et al. presented an alternative + layout generated by a genetic algorithm in their article <a + href="https://pdfs.semanticscholar.org/1bf8/74dcaa7f21c2cc3c6c5e526b61a9ee352bba.pdf">Toward + Optimal Arabic Keyboard Layout Using Genetic Algorithm</a>. <!-- --> They used a snapshot of the Arabic Wikipedia probably from around 2008 and optimized for typing speed only, claiming 35% faster typing compared @@ -424,7 +520,7 @@ </div> </div> - <figure id="ar-malas"> + <figure> <div class="lbox"> <img src="ar-malas-heat.svg"> {{ fingerhandstats(layoutstats['ar-malas']) }} |