Contextual Spell Checkers Effectiveness for People with DyslexiaGoogle Wave, Microsoft Office and Ghotit Comparison<br />
Background Information on Context Sensitive Spell Checkers<br />
What is a contextual spell checker?<br />A Contextual Spell Checker analyzes the context of sentence in which the misspell...
What is required for an effective context spell checker?<br />Advanced NLP algorithms that analyze correctly the context o...
Special requirements of spell checkers by people with dyslexia (#1)<br />Correction of severely misspelled words<br />Regu...
Special requirements of spell checkers by people with dyslexia (#2)<br />Assistance in selecting the correct suggested wor...
Leading context-sensitive spell checkers<br />Microsoft Office 2007 Spell Checker<br />Context-sensitive spell checking wa...
Ghotit context-sensitive spell checker<br />The Ghotit context-sensitive spell checkers was designed and built directly to...
Comparison of Context Sensitive Spell Checkers Effectiveness to People with Dyslexia<br />
Dyslexic Text Sources<br />	The text selected for testing was taken from published text written by people with dyslexia:<b...
Some example from the tests<br />“Its plane fore al too sea.”(*)<br />Text Source:  http://www.dcs.bbk.ac.uk/research/rece...
Some example from the tests<br />“Its latter prefect awl the weigh.”(*)<br />Text Source:  http://www.dcs.bbk.ac.uk/resear...
Some example from the tests<br />“Their coming too sea if its reel.”(*)<br />Text Source:  http://en.wikipedia.org/wiki/Sp...
Dyslexic Text - Correction Comparison Summary Table(*)<br />(*) For more details of this test please contact Ghotit<br />
Ghotit Special Spell Checking Designed for People with Dyslexia<br />
Ghotit spell checker for DyslexicsAll-in-one-solution<br /><ul><li>Integrated to Microsoft Word
Contextual spell checker
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Contextual Spell Checkers Effectiveness for People with Dyslexia

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The following presents the summary of a comparison made between Microsoft Office 2007, Google Wave and Ghotit's context-sensitive spell checkers. The text selected for the comparison was taken from published text written by people with dyslexia.

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Contextual Spell Checkers Effectiveness for People with Dyslexia

  1. 1. Contextual Spell Checkers Effectiveness for People with DyslexiaGoogle Wave, Microsoft Office and Ghotit Comparison<br />
  2. 2. Background Information on Context Sensitive Spell Checkers<br />
  3. 3. What is a contextual spell checker?<br />A Contextual Spell Checker analyzes the context of sentence in which the misspelled word appears, and based on the context of the word suggests the corrections. <br />A Context Spell Checker implements Natural Language Processing (NLP) algorithms.<br />
  4. 4. What is required for an effective context spell checker?<br />Advanced NLP algorithms that analyze correctly the context of a sentence and the incorrect word written in it<br />An optimized scoring system that place in the correct order the relevance of the suggested corrections<br />High performance system that can run in the background multiple iterations and select the most highly scored ones within mili-seconds<br />A learning NLP server whose intelligence increases as more examples and data is gathered<br />Self learning algorithms that take into each next iteration additional information provided by the user<br />
  5. 5. Special requirements of spell checkers by people with dyslexia (#1)<br />Correction of severely misspelled words<br />Regular spell checkers address mild spelling mistakes only<br />Detection of misused/out-of-context words (e.g. “meat” instead of “meet”)<br />Regular spell spellcheckers can not identify misused words as they have no notion of the sentence context<br />Detection of grammar mistakes within a sentence of severely misspelled words<br />Regular spell checkers offer some grammar correction, but only if the words comprising the grammatical error are spelled correctly<br />
  6. 6. Special requirements of spell checkers by people with dyslexia (#2)<br />Assistance in selecting the correct suggested word<br />People with dyslexia have difficulty in selecting the correct suggested word as they do not recognize the meaning of the suggested words based only on its spelling<br />Making sure that the sentence that was written and corrected is what was intended to be written<br />Assistance is required to provide confidence to the dyslexic writer, that what is written is what he intended to write<br />
  7. 7. Leading context-sensitive spell checkers<br />Microsoft Office 2007 Spell Checker<br />Context-sensitive spell checking was incorporated into Microsoft Office 2007 <br />Google Wave Spell Checker<br />With the release of Google Wave, Google introduced into the Wave collaboration platform a context spell checker<br />Target audience of Google Wave and Microsoft Office 2007 Spell Checkers<br />Mainstream writers, with mild spelling / typing errors<br />
  8. 8. Ghotit context-sensitive spell checker<br />The Ghotit context-sensitive spell checkers was designed and built directly to meet dyslexics unique spell checking requirements<br />The Ghotit context-sensitive spell checker has offered in the past two years a free online service <br /> http://www.ghotit.com/free_service.shtml<br />After two years of testing and UI design, Ghotit has recently released its Microsoft Word Plugin<br /> http://www.ghotit.com/products.shtml<br />
  9. 9. Comparison of Context Sensitive Spell Checkers Effectiveness to People with Dyslexia<br />
  10. 10. Dyslexic Text Sources<br /> The text selected for testing was taken from published text written by people with dyslexia:<br />Ph.D. theses of Dr. JenifferPedler<br />http://www.dcs.bbk.ac.uk/research/recentphds/pedler.pdf<br />Wikipedia <br />http://en.wikipedia.org/wiki/Spell_checker<br />A paragraph from ICTSAN educational blog <br />http://ictsan.edublogs.org/sample-texts-for-spellchecking/<br />
  11. 11. Some example from the tests<br />“Its plane fore al too sea.”(*)<br />Text Source: http://www.dcs.bbk.ac.uk/research/recentphds/pedler.pdf<br />
  12. 12. Some example from the tests<br />“Its latter prefect awl the weigh.”(*)<br />Text Source: http://www.dcs.bbk.ac.uk/research/recentphds/pedler.pdf<br />
  13. 13. Some example from the tests<br />“Their coming too sea if its reel.”(*)<br />Text Source: http://en.wikipedia.org/wiki/Spell_checker<br />
  14. 14. Dyslexic Text - Correction Comparison Summary Table(*)<br />(*) For more details of this test please contact Ghotit<br />
  15. 15. Ghotit Special Spell Checking Designed for People with Dyslexia<br />
  16. 16. Ghotit spell checker for DyslexicsAll-in-one-solution<br /><ul><li>Integrated to Microsoft Word
  17. 17. Contextual spell checker
  18. 18. Severe spelling error correction
  19. 19. Misused word correction
  20. 20. Grammar checker
  21. 21. Split-words merging/ merged-words splitting
  22. 22. Integrated text-to-speech
  23. 23. Integrated dictionary
  24. 24. Personal dictionary
  25. 25. Inline editing
  26. 26. Graphical needs for the visually impaired</li></li></ul><li>Thank You<br />Visit us at: www.ghotit.com<br />

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