1 Text Input in Indic Scripts Anirudha Joshi Industrial Design Centre, IIT Bombay.
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Transcript of 1 Text Input in Indic Scripts Anirudha Joshi Industrial Design Centre, IIT Bombay.
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- 1 Text Input in Indic Scripts Anirudha Joshi Industrial Design Centre, IIT Bombay
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- 5 Graduates (3.7%) Metric (8%) Middle school (9%) Primary school (14%) Illiterate (35%) Tele-densityShare Urban148%62% Rural40%38% (Jan 2013, TRAI) HSC / Diploma (4%) Illiterate (26%)
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- 6 Source: The Times of India
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- 7 How many people in India speak English?
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- 8 How many people in India prefer to speak in English?
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- 9 Source: Top 10 Publications 2012 Q1, Hansa Research, MRUS, IRS
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- 11 Source: An Installation in IDC
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- Structure of the Devanagari Script Gutturals Palatals Linguals Dentals Labials Vowel modifiers Semi-vowels Vowels Consonants Vowels 12
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- Challenges in Text Input in Indian Languages 13 Gutturals Palatals Linguals Dentals Labials Vowel modifiers Semi-vowels Vowels Consonants Vowels Large number of characters ~660 frequent glyphs 2+ keystrokes = glyph + = (C + V) + + = (C + V + V) Difference in pronunciation and visual sequence + = Conjuncts (halant between two consonants) + + = (C + C) Varying similarity between conjuncts and consonants + + = + + = + + = + + =
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- Text Input in Indic Languages QWERTY keyboard for Devanagari input Devanagari needs 52 keys (13 vowels, 34 consonants, 4 conjuncts, 1 halant) QWERTY has 26 un-shifted keys Leads to cognitive load on users Complex structure of Indic scripts (G > K) Large number of glyphs Need much training and practice 30-50 hours to reach 25 wpm Slow starts Only professional typists put in the effort QWERTY is not suitable 14
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- 17 Source: Anshuman Kumar
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- Task Success /5 Users 18 Without help p (one tailed) Nokia (0.208) Samsung (0.195) Sony (0.001) Total p (one tailed) Nokia (0.000) Samsung (0.010) Sony (0.000)
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- 19 Disha
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- 20 Swarachakra
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- 21 Inscript
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- 23 Aug 2013 Jun 2013 Oct 2013 Jan 2014