DysWebxia is a model that integrates the findings from my PhD thesis research with more than 150 people with dyslexia using eye tracking to make the texts more readable by modifying the content and presentation of the text. 
This research was conducted with funding from Generalitat de Calaluyna (FI doctoral fellowship) at Web Research Group & Natural Language Processing Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra. 
 
Rello, Luz. 2014. Ph.D. Thesis. 
DysWebxia. A Text Accessibility Model for People with Dyslexia.  
Advisors: Ricardo Baeza-Yates and Horacio Saggion. 
Dept. of Information and Communication Technologies, Universitat Pompeu Fabr









Abstract: Worldwide, 10% of the population has dyslexia, a cognitive disability that reduces readability and comprehension of written information. The goal of this thesis is to make text more accessible for people with dyslexia by combining human computer interaction validation methods and natural language processing techniques. In the initial phase of this study we examined how people with dyslexia identify errors in written text. Their written errors were analyzed and used to estimate the presence of text written by individuals with dyslexia in the Web. After concluding that dyslexic errors relate to presentation and content features of text, we carried out a set of experiments using eye tracking to determine the conditions that led to improved readability and comprehension. After finding the relevant parameters for text presentation and content modification, we implemented a lexical simplification system. Finally, the results of the investigation and the resources created, lead to a model, DysWebxia, that proposes a set of recommendations that have been successfully integrated in four applications.



Applications 
So far the apps iDEAL eBook Reader and Text4All have integrated DysWebxia.

iDEAL eBook Reader 
— Developed by Accessible Systems India and Apps4Adroid.
— The first eBook reader for Android for people with dyslexia  
— Finalist at the Vodafone Foundation Smart Accessibility Awards 2012
— More than 35,000 downloads

Text4all
— Developed by Vasile Topac in Polytechnic University of Timisoara, Romania.
— Finalist in The Paciello Group Web Accessibility Challenge 2013.
— A web service with personalized dyslexic-friendly settings.

(in progress)

— DysWebxia Reader for iOS.

— New profile for dyslexia in Cloud4All project. 

— Inclusion of a new profile for dyslexia en Capti. 

Do you want your tool or texts to be dyslexic-accessible? 
Please, download the resources, read our papers, or contact me! 
DysWebxia is free!



Resources 
We created language resources to study dyslexia (DysList) and to make more accessible texts (CASSA). 
CASSA   
Using our CASSA (Context Aware Synonym Simplification Algorithm) we (together with Ricardo Baeza-Yates and Julia Dembowski) created CASSA resource, a lists of synonyms ranked by their complexity in Spanish. We used Spanish OpenThesaurus and Google Books Ngram Corpus to create CASSA resource. CASSA deals with word sense disambiguation, taking into account the web frequency of the word context using the Google Books Ngram Corpus. The resource is a list of 41,106 complex words with their corresponding synonyms (ranging from one to three) depending on the sense of the word. 
More Information: See Chapter 14 of the PhD Thesis to know more about CASSA Algorithm and the CASSA Resources.
Download: CASSA resource (synonyms within their context disambiguation)
Download: Simple CASSA

 








DysList  
DysList, a list of dyslexic errors annotated with linguistic, phonetic and visual features.
Download: DysList resource
More Information:
Rello, Luz; Ricardo Baeza-Yates & Llisterri, Joaquim. 2014. 
DysList: An Annotated Resource of Dyslexic Errors. (pdf)
Proc. LREC 2014. Reykjavik, Iceland, 26-31, May



Recommendations 
As an outcome of the Ph.D research we created a set of recommendations to display more readable and understandable text on the screen for people with dyslexia. These recommendations show which text modifications regarding the text presentation and the content of the text had significant effects on the reading performance and the comprehension of people with dyslexia in our experiments. 
More Information: See Chapter 16 of the PhD Thesis, Tables 16.1 and 16.2.




























Integration of the Recommendations (in progress)

 — In the recommendations for school teachers. 
    Departament d’Ensenyament  
    Àrea de Tecnologies per a l'Aprenentatge i el Coneixement   
    (Department of Education, Technologies for Learning)
    Generalitat de Calaluyna (Catalan Goverment)

— In the recommendations of the accessible web.
    Research and Development Working Group in the
    Web Accessibility Initiative (WAI) at W3C



Selected Outreach 

New solutions for dyslexia: Luz Rello at TEDxMadrid




Reportage in the TV news of Telenoticies Nit.
TV3 (Official TV channel of the Catalonian government). 
by Manel Alias Tort. 3 August 2013.



Reportage This young scientist is using technology 
to help dyslexics
TNW The Next Web. 14 July 2013  by Anna Heim

Xataka Luz Rello, DysWebxia, y la lucha contra 
la dislexia
(via The Next Web) by Javier Pastor

Reportage Internet se adapta a la dislexia
by Josep Corbella
La Vanguardia, 14 Julio 2013. 
pdf in Spanish
pdf in Catalan




Interview Tecnologia per endreçar paraules 
per als dislèxics 
by Monica Lopez Ferrado.
Ara, December 2012.
pdf in Catalan

Interview DysWebxia facilita l’accés a internet 
a les persones amb dislèxia 
by Nuria Pérez.
Revista de la Universitat Pompeu Fabra, 
January 2013.
— pdf in Catalan



Key papers
Rello, Luz & Baeza-Yates, Ricardo. 2014. 
How to Present more Readable Text for People with Dyslexia. 
An eye-tracking study on text colors, size and spacings.
To appear in Universal Access in the Information Society (UAIS)

Rello, Luz & Baeza-Yates, Ricardo. 2014. 
Evaluation of DysWebxia: A Reading App Designed for People with Dyslexia. (pdf)
W4A 2014: The 10th International Cross Disciplinary Conference on Web Accessibility. 
Seoul, Korea, 7-9 April.

Rello, Luz & Baeza-Yates, Ricardo. 2013. 
Good Fonts for Dyslexia. (pdf)
ASSETS 2013: The 15th International ACM SIGACCESS Conference of Computers and Accessibility, Bellevue, Washington USA, 22-24 October.

Rello, Luz: Ricardo Baeza-Yates, Horacio Saggion, Clara Bayarri & Simone D. J. Barbosa. 2013. 
An iOS Reader for People with Dyslexia (Demo). (pdf)
ASSETS 2013: The 15th International ACM SIGACCESS Conference of Computers and Accessibility, Bellevue, Washington USA, 22-24 October.

Rello, Luz; Ricardo Baeza-Yates; Stefan Bott & Horacio Saggion. 2013.
Simplify or Help? Text Simplification Strategies for People with Dyslexia (pdf)
W4A 2013: The 10th International Cross Disciplinary Conference on Web Accessibility. May 13-15, 2013, Rio de Janeiro, Brazil.

Size Matters (Spacing not): 18 Points for a Dyslexic-friendly Wikipedia (pdf)
W4A 2013: The 10th International Cross Disciplinary Conference on Web Accessibility. May 13-15, 2013, Rio de Janeiro, Brazil.

Rello, Luz; Susana Bautista; Ricardo Baeza-Yates; Pablo Gervás, Raquel Hervás & Horacio Saggion. 2013.
One half or 50%? An eye-tracking study of number representation readability (pdf)
INTERACT 2013: 14th IFIP TC13 Conference on Human-Computer Interaction. Cape Town, South Africa, 2013.

Rello, Luz; Ricardo Baeza-Yates; Laura Dempere & Horacio Saggion. 2013. 
Frequent words improve readability and short words improve understandability for people with dyslexia. (pdf)
INTERACT 2013: 14th IFIP TC13 Conference on Human-Computer Interaction. Cape Town, South Africa, 2013.

DysWebxia is a model that integrates the findings from my PhD thesis research with more than 150 people with dyslexia using eye tracking to make the texts more readable by modifying the content and presentation of the text.

This research was conducted with funding from Generalitat de Calaluyna (FI doctoral fellowship) at Web Research Group & Natural Language Processing Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra.


Rello, Luz. 2014. Ph.D. Thesis.
DysWebxia. A Text Accessibility Model for People with Dyslexia.

Advisors: Ricardo Baeza-Yates and Horacio Saggion.

Dept. of Information and Communication Technologies, Universitat Pompeu Fabr










Abstract: Worldwide, 10% of the population has dyslexia, a cognitive disability that reduces readability and comprehension of written information. The goal of this thesis is to make text more accessible for people with dyslexia by combining human computer interaction validation methods and natural language processing techniques. In the initial phase of this study we examined how people with dyslexia identify errors in written text. Their written errors were analyzed and used to estimate the presence of text written by individuals with dyslexia in the Web. After concluding that dyslexic errors relate to presentation and content features of text, we carried out a set of experiments using eye tracking to determine the conditions that led to improved readability and comprehension. After finding the relevant parameters for text presentation and content modification, we implemented a lexical simplification system. Finally, the results of the investigation and the resources created, lead to a model, DysWebxia, that proposes a set of recommendations that have been successfully integrated in four applications.




Applications

So far the apps iDEAL eBook Reader and Text4All have integrated DysWebxia.


iDEAL eBook Reader

— Developed by Accessible Systems India and Apps4Adroid.

— The first eBook reader for Android for people with dyslexia 

— Finalist at the Vodafone Foundation Smart Accessibility Awards 2012

— More than 35,000 downloads


Text4all

— Developed by Vasile Topac in Polytechnic University of Timisoara, Romania.

— Finalist in The Paciello Group Web Accessibility Challenge 2013.

— A web service with personalized dyslexic-friendly settings.


(in progress)


— DysWebxia Reader for iOS.


— New profile for dyslexia in Cloud4All project.


— Inclusion of a new profile for dyslexia en Capti.


Do you want your tool or texts to be dyslexic-accessible?

Please, download the resources, read our papers, or contact me!
DysWebxia is free!




Resources

We created language resources to study dyslexia (DysList) and to make more accessible texts (CASSA).

CASSA 

Using our CASSA (Context Aware Synonym Simplification Algorithm) we (together with Ricardo Baeza-Yates and Julia Dembowski) created CASSA resource, a lists of synonyms ranked by their complexity in Spanish. We used Spanish OpenThesaurus and Google Books Ngram Corpus to create CASSA resource. CASSA deals with word sense disambiguation, taking into account the web frequency of the word context using the Google Books Ngram Corpus. The resource is a list of 41,106 complex words with their corresponding synonyms (ranging from one to three) depending on the sense of the word.

More Information: See Chapter 14 of the PhD Thesis to know more about CASSA Algorithm and the CASSA Resources.

Download: CASSA resource (synonyms within their context disambiguation)

Download: Simple CASSA











DysList

DysList, a list of dyslexic errors annotated with linguistic, phonetic and visual features.

Download: DysList resource

More Information:

Rello, Luz; Ricardo Baeza-Yates & Llisterri, Joaquim. 2014.
DysList: An Annotated Resource of Dyslexic Errors. (pdf)
Proc. LREC 2014. Reykjavik, Iceland, 26-31, May




Recommendations

As an outcome of the Ph.D research we created a set of recommendations to display more readable and understandable text on the screen for people with dyslexia. These recommendations show which text modifications regarding the text presentation and the content of the text had significant effects on the reading performance and the comprehension of people with dyslexia in our experiments.

More Information: See Chapter 16 of the PhD Thesis, Tables 16.1 and 16.2.





























Integration of the Recommendations (in progress)


 — In the recommendations for school teachers. 

    Departament d’Ensenyament 
    Àrea de Tecnologies per a l'Aprenentatge i el Coneixement  
    (Department of Education, Technologies for Learning)

    Generalitat de Calaluyna (Catalan Goverment)


— In the recommendations of the accessible web.

    Research and Development Working Group in the
    Web Accessibility Initiative (WAI) at W3C




Selected Outreach


New solutions for dyslexia: Luz Rello at TEDxMadrid






Reportage in the TV news of Telenoticies Nit.
TV3 (Official TV channel of the Catalonian government).

by Manel Alias Tort. 3 August 2013.





Reportage This young scientist is using technology

to help dyslexics

TNW The Next Web. 14 July 2013  by Anna Heim


Xataka Luz Rello, DysWebxia, y la lucha contra

la dislexia

(via The Next Web) by Javier Pastor


Reportage Internet se adapta a la dislexia
by Josep Corbella

La Vanguardia, 14 Julio 2013.

pdf in Spanish

pdf in Catalan





Interview Tecnologia per endreçar paraules

per als dislèxics
by Monica Lopez Ferrado.

Ara, December 2012.
pdf in Catalan


Interview DysWebxia facilita l’accés a internet

a les persones amb dislèxia
by Nuria Pérez.

Revista de la Universitat Pompeu Fabra,

January 2013.
— pdf in Catalan




Key papers

Rello, Luz & Baeza-Yates, Ricardo. 2014.

How to Present more Readable Text for People with Dyslexia.

An eye-tracking study on text colors, size and spacings.

To appear in Universal Access in the Information Society (UAIS)


Rello, Luz & Baeza-Yates, Ricardo. 2014.

Evaluation of DysWebxia: A Reading App Designed for People with Dyslexia. (pdf)

W4A 2014: The 10th International Cross Disciplinary Conference on Web Accessibility.
Seoul, Korea, 7-9 April.


Rello, Luz & Baeza-Yates, Ricardo. 2013.

Good Fonts for Dyslexia. (pdf)

ASSETS 2013: The 15th International ACM SIGACCESS Conference of Computers and Accessibility, Bellevue, Washington USA, 22-24 October.


Rello, Luz: Ricardo Baeza-Yates, Horacio Saggion, Clara Bayarri & Simone D. J. Barbosa. 2013.

An iOS Reader for People with Dyslexia (Demo). (pdf)

ASSETS 2013: The 15th International ACM SIGACCESS Conference of Computers and Accessibility, Bellevue, Washington USA, 22-24 October.


Rello, Luz; Ricardo Baeza-Yates; Stefan Bott & Horacio Saggion. 2013.

Simplify or Help? Text Simplification Strategies for People with Dyslexia (pdf)

W4A 2013: The 10th International Cross Disciplinary Conference on Web Accessibility. May 13-15, 2013, Rio de Janeiro, Brazil.


Size Matters (Spacing not): 18 Points for a Dyslexic-friendly Wikipedia (pdf)

W4A 2013: The 10th International Cross Disciplinary Conference on Web Accessibility. May 13-15, 2013, Rio de Janeiro, Brazil.


Rello, Luz; Susana Bautista; Ricardo Baeza-Yates; Pablo Gervás, Raquel Hervás & Horacio Saggion. 2013.

One half or 50%? An eye-tracking study of number representation readability (pdf)

INTERACT 2013: 14th IFIP TC13 Conference on Human-Computer Interaction. Cape Town, South Africa, 2013.


Rello, Luz; Ricardo Baeza-Yates; Laura Dempere & Horacio Saggion. 2013.

Frequent words improve readability and short words improve understandability for people with dyslexia. (pdf)

INTERACT 2013: 14th IFIP TC13 Conference on Human-Computer Interaction. Cape Town, South Africa, 2013.

 

Luz, Saurabh and Gaurang at Vodafone Foundation Smart Accessibility Awards, presenting the iDEAL eBook Reader Brussels, Belgium.

Text Presentation Recommendations

Text Content Recommendations

       Example of integration of CASSA in DysWebxia Reader for iOS.

Link the video presentation

of the W4A 2013 papers,

Rio de Janeiro, Brazil.

DysWebxia Reader Screenshots

Luz showing DysWebxia demo at ASSETS 2012, Boulder, Colorado.