Text Entry Research Papers - Academia.edu (original) (raw)

We present a new mobile text-entry method that relies on alphabet navigation and dismisses memorizing, offering visually impaired individuals an easy writing mechanism. Current mobile text-entry interfaces are not suitable for blind users... more

We present a new mobile text-entry method that relies on alphabet navigation and dismisses memorizing, offering visually impaired individuals an easy writing mechanism. Current mobile text-entry interfaces are not suitable for blind users and special braille devices are too heavy, large and cumbersome to be used in a mobile context. With the enormous growth of mobile communications and applications it

Abstract. In this paper we describe Semantic Keyboard: a soft key-board augmented by semantic pointing. The cursor crosses faster over keys containing low-probability letters (considering the prefix already en-tered). This optimization... more

Abstract. In this paper we describe Semantic Keyboard: a soft key-board augmented by semantic pointing. The cursor crosses faster over keys containing low-probability letters (considering the prefix already en-tered). This optimization reduces the movement of the pointer by 60%, and increases the text entry speed by 13.5 % after the first character in a word. Accuracy is equivalent to a regular soft keyboard.

For most users, interacting with mobile computing devices requires visual commitment to the input mechanism. As a result, devices such as smartphones and PDAs are not suitable in situations when visual attention is already focused on... more

For most users, interacting with mobile computing devices requires visual commitment to the input mechanism. As a result, devices such as smartphones and PDAs are not suitable in situations when visual attention is already focused on another task. Chording devices do not have this drawback but require some training. We evaluate the performance of a key-to-character mapping for a 5-key chording device designed to minimize the learning phase. The subjects in our study were able to memorize the mapping in the first 45 minutes of training. After approximately 350 minutes, the average entry speed was 20 words per minute. The influence of having visual, audio or no feedback was also evaluated. We found that the typing rates were the same under all three conditions, but the error rates were the smallest in the absence of feedback (2.32%) and the largest when the users could see what they typed (3.41%).

The amount of visual feedback when using a mobile device in a busy context is often limited. For example, while texting and walking in a crowded place, we need to focus on the environment and not on the phone. A way to type fast,... more

The amount of visual feedback when using a mobile device in a busy context is often limited. For example, while texting and walking in a crowded place, we need to focus on the environment and not on the phone. A way to type fast, accurately and with limited visual feedback is represented by chording keyboards. We present a study on such a chording keyboard prototype and analyze the influence of having visual, audio or no feedback at all on the typing process. The typing rates are the same under all three conditions, with an average of 20 words per minute, after approximately 350 minutes of practice. The average error rates are the lowest in the absence of feedback (2.41%) and the highest when the users can see what has been typed (4.03%). Considering these results, the proposed text input method is a viable option in situations where visual attention is already committed to other tasks.

The mini{QWERTY keyboard is a mobile two{handed keyboard approximately the size of a mobile phone keypad. The keys are arranged in the same order as a desktop QWERTY keyboard. In this paper, we present two studies of mini{QWERTY keyboard... more

The mini{QWERTY keyboard is a mobile two{handed keyboard approximately the size of a mobile phone keypad. The keys are arranged in the same order as a desktop QWERTY keyboard. In this paper, we present two studies of mini{QWERTY keyboard use. The rst study is a longitudinal examination of the learning rates of 14 novice mini{QWERTY keyboard users, an analysis of

In recent years, there are huge developments in Information and Communication Technology (ICT). ICT in present form has offered to interact with the computing system in users own language. But, there are several challenges to be addressed... more

In recent years, there are huge developments in Information and Communication Technology (ICT). ICT in present form has offered to interact with the computing system in users own language. But, there are several challenges to be addressed to achieve the full advantages of ICT. One of the biggest issue is standard text input mechanism. In practice, the text input mechanism

Information cannot be found if it is not recorded. Existing rich graphical application approaches interfere with user input in many ways, forcing complex interactions to enter simple information, requiring complex cognition to decide... more

Information cannot be found if it is not recorded. Existing rich graphical application approaches interfere with user input in many ways, forcing complex interactions to enter simple information, requiring complex cognition to decide where the data should be stored, and limiting the kind of information that can be entered to what can fit into specific applications' data models. Freeform text entry suffers from none of these limitations but produces data that is hard to retrieve or visualize. We describe the design and ...

We address the issue of enabling text entry for walk-up-and-use interactive tabletop displays located in public spaces. Public tabletop installations are characterized by a diverse target user group, multiperson interaction, and the need... more

We address the issue of enabling text entry for walk-up-and-use interactive tabletop displays located in public spaces. Public tabletop installations are characterized by a diverse target user group, multiperson interaction, and the need for high approachability and intuitiveness. We first define the design constraints of text-entry methods for public tabletop installations such as clear affordances, audience expertise, support of direct-touch interaction, visual appearance, space requirements, multi-user support, and technical ...

Automatic dictation software with reasonably high word recognition accuracy is now widely avail- able to the general public. Many people with gross motor impairment, including some people with cerebral palsy and closed head injuries, have... more

Automatic dictation software with reasonably high word recognition accuracy is now widely avail- able to the general public. Many people with gross motor impairment, including some people with cerebral palsy and closed head injuries, have not enjoyed the benet of these advances, because their general motor impairment includes a component of dysarthria: reduced speech intelligibility caused by neuromotor impairment. These motor impairments often preclude normal use of a keyboard. For this reason, case studies have shown that some dysarthric users may nd it easier, instead of a key- board, to use a small-vocabulary automatic speech recognition system, with code words representing letters and formatting commands, and with acoustic speech recognition models carefully adapted to the speech of the individual user. Development of each individualized speech recognition system remains extremely labor-intensive, because so little is understood about the general characteristics of dysarthric s...

Abstract-We developed TEMA, an application to gather Text Entry speed and accuracy Metrics on Android devices. This paper details the features of the application, describes a user study to demonstrate its utility, and establishes entry... more

Abstract-We developed TEMA, an application to gather Text Entry speed and accuracy Metrics on Android devices. This paper details the features of the application, describes a user study to demonstrate its utility, and establishes entry speed and accuracy measurements for the evaluated text entry techniques. We evaluated and compared four mobile text entry methods: two-thumb QWERTY typing, one-finger QWERTY typing, handwriting recognition, and shape writing recognition. The two QWERTY techniques were the fastest, with no statistically significant difference between them in entry speed or accuracy. Shape writing was slightly slower, but similar in accuracy. Handwriting was the slowest and least accurate technique.

Fourteen individuals with various motor impairments performed a series of text entry exercises. Performance measures were collected which indicate overall performance (speed and error rate) and classification of errors. Such performance... more

Fourteen individuals with various motor impairments performed a series of text entry exercises. Performance measures were collected which indicate overall performance (speed and error rate) and classification of errors. Such performance metrics could be useful in assessing the computer access skills of clients, and recommending software, hardware, or training interventions. BACKGROUND People with disabilities may have difficulty performing text entry tasks using a computer keyboard. The specific types of difficulty will vary depending on the person's intrinsic abilities, the input device being used, and the task. In order to understand and remediate the difficulties faced by a particular individual, it is desirable to quantify performance and classify errors. This aids in comparing performance over time or between input devices; evaluating the success of an intervention; or communicating the client's need for an intervention. General measures of typing performance include ...

Rich text tasks are increasingly common on mobile devices, requiring the user to interleave typing and selection to produce the text and formatting she desires. However, mobile devices are a rich input space where input does not need to... more

Rich text tasks are increasingly common on mobile devices, requiring the user to interleave typing and selection to produce the text and formatting she desires. However, mobile devices are a rich input space where input does not need to be limited to a keyboard and touch. In this paper, we present two complimentary studies evaluating four different input modalities to