File size: 1,555 Bytes
5548ff6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | # Sinhala Dyslexic Writing Pattern Taxonomy
This document defines the interpretable dyslexic writing-pattern taxonomy used in this project.
The taxonomy is derived from surface-level orthographic and phonetic deviations observed in Sinhala dyslexic writing.
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## 1. Orthographic Instability
**Definition:**
Inconsistent or incorrect written forms of characters without strong phonetic substitution.
**Surface Signals:**
- Character omission
- Character addition
- Diacritic loss
- Inconsistent spelling
**Example:**
- Clean: රුපියල් දෙදාහක් තියෙනවා
- Dyslexic: රුපියල් දෙදාහක් තියනව
---
## 2. Phonetic Confusion
**Definition:**
Errors that reflect confusion between phonologically similar sounds.
**Surface Signals:**
- Character substitution
- Phonetically similar replacements
**Example:**
- Clean: ගණිත
- Dyslexic: ගනිත
---
## 3. Word Boundary Confusion
**Definition:**
Difficulty maintaining correct word segmentation.
**Surface Signals:**
- Word merges
- Extra spaces
- Missing spaces
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## 4. Mixed Dyslexic Pattern
**Definition:**
Presence of multiple dyslexic patterns within the same sentence or essay.
**Criteria:**
- More than one dominant surface error type
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## 5. No Dominant Pattern
**Definition:**
No consistent dyslexic pattern detected or very low error density.
---
## Notes
- Patterns are assigned using rule-based dominance logic.
- This system prioritizes explainability over raw accuracy.
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