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Predicting text entry speed on mobile phones

Authors:

Miika Silfverberg,

I. Scott MacKenzie,

Panu KorhonenAuthors Info & Claims

CHI '00: Proceedings of the SIGCHI conference on Human Factors in Computing Systems

Pages 9 - 16

https://doi.org/10.1145/332040.332044

Published: 01 April 2000 Publication History

Abstract

We present a model for predicting expert text entry rates for several input methods on a 12-key mobile phone keypad. The model includes a movement component based on Fitts' law and a linguistic component based on digraph, or letter-pair, probabilities. Predictions are provided for one-handed thumb and two-handed index finger input. For the traditional multi-press method or the lesser-used two-key method, predicted expert rates vary from about 21 to 27 words per minute (wpm). The relatively new T9 method works with a disambiguating algorithm and inputs each character with a single key press. Predicted expert rates vary from 41 wpm for one-handed thumb input to 46 wpm for two-handed index finger input. These figures are degraded somewhat depending on the user's strategy in coping with less-than-perfect disambiguation. Analyses of these strategies are presented.

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Cited By

Mutasim ABatmaz AHudhud Mughrabi MStuerzlinger W(2024)The Guided Evaluation MethodInternational Journal of Human-Computer Studies10.1016/j.ijhcs.2024.103317190:COnline publication date: 1-Oct-2024
https://dl.acm.org/doi/10.1016/j.ijhcs.2024.103317
Ljubic SSalkanovic A(2023)Generating Representative Phrase Sets for Text Entry Experiments by GA-Based Text Corpora SamplingMathematics10.3390/math1111255011:11(2550)Online publication date: 1-Jun-2023
https://doi.org/10.3390/math11112550
Mutasim ABatmaz AHudhud Mughrabi MStuerzlinger W(2023)Does Repeatedly Typing the Same Phrase Provide a Good Estimate of Expert Text Entry Performance?Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544549.3585647(1-8)Online publication date: 19-Apr-2023
https://dl.acm.org/doi/10.1145/3544549.3585647
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Predicting text entry speed on mobile phones

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cover image ACM Conferences

CHI '00: Proceedings of the SIGCHI conference on Human Factors in Computing Systems

April 2000

587 pages

ISBN:1581132166

DOI:10.1145/332040

Chairmen:
Thea Turner
Motorola Labs
,
Gerd Szwillus
Univ. of Paderborn, Paderborn, Germany

Copyright © 2000 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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SIGCHI: ACM Special Interest Group on Computer-Human Interaction

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Association for Computing Machinery

New York, NY, United States

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Published: 01 April 2000

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CHI00: Human Factors in Computing Systems

April 1 - 6, 2000

The Hague, The Netherlands

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CHI '00 Paper Acceptance Rate 72 of 336 submissions, 21%;

Overall Acceptance Rate 6,199 of 26,314 submissions, 24%

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Cited By

Mutasim ABatmaz AHudhud Mughrabi MStuerzlinger W(2024)The Guided Evaluation MethodInternational Journal of Human-Computer Studies10.1016/j.ijhcs.2024.103317190:COnline publication date: 1-Oct-2024
https://dl.acm.org/doi/10.1016/j.ijhcs.2024.103317
Ljubic SSalkanovic A(2023)Generating Representative Phrase Sets for Text Entry Experiments by GA-Based Text Corpora SamplingMathematics10.3390/math1111255011:11(2550)Online publication date: 1-Jun-2023
https://doi.org/10.3390/math11112550
Mutasim ABatmaz AHudhud Mughrabi MStuerzlinger W(2023)Does Repeatedly Typing the Same Phrase Provide a Good Estimate of Expert Text Entry Performance?Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544549.3585647(1-8)Online publication date: 19-Apr-2023
https://dl.acm.org/doi/10.1145/3544549.3585647
Komninos AKavvathas VSimou I(2022)LEDBoard: Using Visual Feedback to Support Text Entry with Physical KeyboardsProceedings of the International Conference on Ubiquitous Computing & Ambient Intelligence (UCAmI 2022)10.1007/978-3-031-21333-5_85(852-863)Online publication date: 21-Nov-2022
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Duran RSorva JSeppälä O(2021)Rules of Program BehaviorACM Transactions on Computing Education10.1145/346912821:4(1-37)Online publication date: 17-Nov-2021
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Kristensson PMüllners TKitamura YQuigley AIsbister KIgarashi TBjørn PDrucker S(2021)Design and Analysis of Intelligent Text Entry Systems with Function Structure Models and Envelope AnalysisProceedings of the 2021 CHI Conference on Human Factors in Computing Systems10.1145/3411764.3445566(1-12)Online publication date: 6-May-2021
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Jokinen JAcharya AUzair MJiang XOulasvirta AKitamura YQuigley AIsbister KIgarashi TBjørn PDrucker S(2021)Touchscreen Typing As Optimal Supervisory ControlProceedings of the 2021 CHI Conference on Human Factors in Computing Systems10.1145/3411764.3445483(1-14)Online publication date: 6-May-2021
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Lee DKim JOakley IKitamura YQuigley AIsbister KIgarashi TBjørn PDrucker S(2021)FingerText: Exploring and Optimizing Performance for Wearable, Mobile and One-Handed TypingProceedings of the 2021 CHI Conference on Human Factors in Computing Systems10.1145/3411764.3445106(1-15)Online publication date: 6-May-2021
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Foley MCasiez GVogel DBernhaupt RMueller FVerweij DAndres JMcGrenere JCockburn AAvellino IGoguey ABjørn PZhao SSamson BKocielnik R(2020)Comparing Smartphone Speech Recognition and Touchscreen Typing for Composition and TranscriptionProceedings of the 2020 CHI Conference on Human Factors in Computing Systems10.1145/3313831.3376861(1-11)Online publication date: 21-Apr-2020
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Castellucci SMacKenzie IMisra MPandey LArif APaternò FJacucci GRohs MSantoro C(2019)TiltWriterProceedings of the 18th International Conference on Mobile and Ubiquitous Multimedia10.1145/3365610.3365629(1-8)Online publication date: 26-Nov-2019
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