Easy Swipe Keyboard: A touch based on screen text entry method for Smartphone: [Essay Example], 564 words GradesFixer

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Easy Swipe Keyboard: a Touch Based on Screen Text Entry Method for Smartphone

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We are going to present an efficient on screen keyboard layout called Easy Swipe Keyboard. Our design objective is to increase typing speed and reduce typing errors as much as possible. To develop an efficient layout, we integrated some additional designing factors like bigram, trigram and 4-gram [4] along with English letter frequency model.

Our proposed keyboard layout contains only 8 buttons. Distribution of button is given in table-1.

Our main concern was to place the 26 English letters (a-z / A-Z) and mostly used punctuation characters in a systematic way. Among the 8 buttons, 3 are rectangular shaped. In the center of those rectangular buttons, we placed ‘t’, ‘i’, and ‘p’. While placing them we considered top 50 bigrams (frequently used character pairs) in English Alphabet [4]. Single click on these three buttons will make the corresponding alphabets visible on the screen. Up to this, all measurements are done based on letter frequency and top 50 bigrams in English Language.

The other 23 letters are placed using the eight sides of each rectangular button. Here also we used top 50 Bigrams of English Language. For example, we found ‘th’ is the mostly used bigram in English. As ‘t’ was previously placed in the center of one rectangular, our primary decision was to place ‘h’ in the closed rectangular where ‘t’ is placed. But among the 8 sides of that rectangular, a randomly chosen side has greater chance of violating Fitts’ law [8]. So while deciding where ‘h’ should be placed, we considered the next few bigrams of ‘h’.

From our bigram list we found that next few bigrams containing ‘h’ are ‘he’ and ‘ha’. So, we narrowed down our decision. ‘h’ must be closed where contains ‘t’ and in that specific side from where ‘e’ and ‘a’ can be most easily accessed. All button’s width, height and inter button distance were previously calculated [10]. So, it was not a very difficult task to determine the side of that rectangular where exactly ‘h’ should be placed. In order to display the characters which are placed in different sides of the button, we need to slide from the center of the button towards the specific side of the rectangular.

Another example will make our designing idea clear. While placing ‘e’ we found that ‘the’ is on top of our 3gram list. While deciding the side, we considered next few bigrams containing ‘n’ which are ‘ion’. Other example will imclude, ‘ur’, ‘ly’, ‘ha’, ‘ion’ etc.

We noticed that some letters are absent in our top 50 bigrams list. It’s an indication that they are not very frequently used. ‘w’, ‘v’ and ‘p’ are some of those letters [4]. But again, randomly placing them is a bad idea. So, we decided to introduce the idea of trigram (frequently used 3 letters). Again we considered top 50 trigrams [4] in our designing. Mostly used trigrams containing ‘w’ are ‘wit’ and ‘was’. Using previous techniques, we placed ‘w’ in a side where optimal distances for typing words containing ‘w’ are minimized.

The design leaves 8 empty places in the major 3 buttons. We noticed that some punctuation letters are very frequently used. So, next we placed 2 most frequently used punctuation letters in those nine positions . Minimum movement time was maintained carefully. For example, we placed the mostly used two punctuation characters ‘.’ and ‘,’ in central button for the ease of the user.

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Easy Swipe Keyboard: A touch based on screen text entry method for Smartphone. (2019, May 14). GradesFixer. Retrieved October 23, 2020, from https://gradesfixer.com/free-essay-examples/easy-swipe-keyboard-a-touch-based-on-screen-text-entry-method-for-smartphone/
“Easy Swipe Keyboard: A touch based on screen text entry method for Smartphone.” GradesFixer, 14 May 2019, gradesfixer.com/free-essay-examples/easy-swipe-keyboard-a-touch-based-on-screen-text-entry-method-for-smartphone/
Easy Swipe Keyboard: A touch based on screen text entry method for Smartphone. [online]. Available at: <https://gradesfixer.com/free-essay-examples/easy-swipe-keyboard-a-touch-based-on-screen-text-entry-method-for-smartphone/> [Accessed 23 Oct. 2020].
Easy Swipe Keyboard: A touch based on screen text entry method for Smartphone [Internet]. GradesFixer. 2019 May 14 [cited 2020 Oct 23]. Available from: https://gradesfixer.com/free-essay-examples/easy-swipe-keyboard-a-touch-based-on-screen-text-entry-method-for-smartphone/
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