Evaluating solutions to process, view and listen mathematical formula within an accessible context
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Evaluating solutions to process, view and listen mathematical formula within an accessible context

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Evaluating solutions to process, view and listen mathematical formula within an accessible context Evaluating solutions to process, view and listen mathematical formula within an accessible context Presentation Transcript

  • Mireia Ribera, Miquel Centelles, Alberto Huélamo, Bruno Splendiani, Marina Salse ULD Conference 2013 - 13/02/2013
  • LIS Department – University of Barcelona(Spain)Grup Adaptabit: Working group on digitalaccessibility for teaching, research and teachinginnovation Bruno Splendiani (2013) – splendiani@ub.edu 2
  •  Background Issue Proposal Methodology Further work Bruno Splendiani (2013) – splendiani@ub.edu 3
  • Accessible teaching documents project Every educational institution must ensure access to the information for all students Goal: Promote equal opportunities / full integration into university academic life by the use of accessible materials in academic community Provide templates for the creation of most widespread teaching documents, and easy procedures to create alternate versions of them. Bruno Splendiani (2013) – splendiani@ub.edu 4
  • Outputs “Guides for creating Accessible Digital Contents” Templates ▪ Teaching documents in academic community (exams, exercises, tutorials, lessons and slides) ▪ Best format suited to each context (Office, PDF, LaTex…) ▪ Adaptation to the needs of blind and low vision students and students with dyslexia Bruno Splendiani (2013) – splendiani@ub.edu 5
  • Templates for the conversions to accessibledigital formats, but Mathematical notation / formulae present specific accessibility barriers and impose specific requirements in conversion Why? Bruno Splendiani (2013) – splendiani@ub.edu 6
  •  Most word processors process mathematical notations/formulae through a codification system or graphical formats procedures. Not suitable for assistive technology (e.g. JAWS, Zoom Text) Consequences  Barriers to blind and low-vision people  Barriers to people with dyslexia or Attention- Deficit Hyperactive Disorder (ADHD) Bruno Splendiani (2013) – splendiani@ub.edu 7
  •  Solution: MathML  XML language for the markup of mathematical formulae  Renderized audio of electronic documents  Expressions magnifiers (low-vision users)  Limitations ▪ Mathematicians writing on text processors or in LaTex, not in MathML ▪ MathML not fully supported by browsers Bruno Splendiani (2013) – splendiani@ub.edu 8
  •  Test which text editor/LaTex and browser best creates and renders mathematical formulae in MathML  Obtain evidences of capability on writing mathematical formulae  Obtain evidences of capability and quality on viewing and listening to mathematical formulae. Bruno Splendiani (2013) – splendiani@ub.edu 9
  • Bruno Splendiani (2013) – splendiani@ub.edu 10
  •  Testbed was designed with two main components:  Catalogue of a selection of 139 different formulae (LibreOffice Math 3.3.2) Bruno Splendiani (2013) – splendiani@ub.edu 11
  •  Three text processors + one LaTex editor with specific capabilities for processing mathematical notation  Text processors ▪ MS Word 2007 (12.0.6661.5000) SP3 MSO (12.0.6662.5000) ▪ MS Word 2007 ▪ MS Word 2007 with MathType 6.0 (DesignScience) ▪ LibreOffice Math 3.3.2  Latex editor ▪ MiKTeX 2.9 TeXnicCentre 1.0 The most used editors by faculty members of UB Bruno Splendiani (2013) – splendiani@ub.edu 12
  • Results of the formulae processed with theeditors were converted into MathML Bruno Splendiani (2013) – splendiani@ub.edu 13
  •  To view and listen on different internet browsers the results of conversion to MathML Visualization  Firefox 12.0 (Win)MathML native support  Opera 12.02 (Win) MathML native support  Safari 6.01 (Mac) MathML native support Visualization and Listening  Internet Explorer 8 ( + MathPlayer Plug-in) Bruno Splendiani (2013) – splendiani@ub.edu 14
  • Two different indicators Visualization review  Quality of displays values  Not acceptable display;  acceptable display;  best display Listening review  Quality of reading(Mathplayer options : Spanish language / Reading for the blind)  MathPlayer doesn’t read the formula;  MathPlayer reads the formula partially;  MathPlayer reads the formula correctly Bruno Splendiani (2013) – splendiani@ub.edu 15
  • MS Word empowered with MathTypebest solution in terms of number of symbols correctly interpreted quality of displays for visualization quality of readings for listening Strengths  the high quality in visualization of big operators (sum, prod, coprod…) and resizable delimiters  Better results even compared to LibreOffice Limitations  6 mathematical expressions not rendered (out of 139) Bruno Splendiani (2013) – splendiani@ub.edu 16
  • LaTex 11 mathematical expressions not rendered (out of 139) By default LaTex exports formulas in a nonstandard typography  limitation in viewing and in Mathplayer listening Bruno Splendiani (2013) – splendiani@ub.edu 17
  •  IE+MathPlayer visualization of expressions processed by MSWord 2007+MathType is the best solution Firefox is the better browser without plugins Opera lowest performance Safari quite good, but bad performance with accents Bruno Splendiani (2013) – splendiani@ub.edu 18
  •  Best results on IE+MathPlayer is MS Word 2007+MathType LaTeX MiKTeX 2.9 + TeX2ht lower performance 19
  •  Recommendations addressed to University professors (research based) Manuals for the creation on how to convert Latex formulas and how to create formulas with MathType Share results data Conversion from paper (Inftyreader) Bruno Splendiani (2013) – splendiani@ub.edu 20
  • Questions Opinions Suggestions…splendiani@ub.edu 21