ºÝºÝߣshows by User: hnicolau / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: hnicolau / Tue, 24 Nov 2015 17:21:50 GMT ºÝºÝߣShare feed for ºÝºÝߣshows by User: hnicolau Typing Performance of Blind Users: An Analysis of Touch Behaviors, Learning, and In-Situ Usage /slideshow/typing-performance-of-blind-users-an-analysis-of-touch-behaviors-learning-and-insitu-usage/55472913 assets2015-151124172150-lva1-app6892
Paper presented at ACM SIGACCESS Conference on Computers and Accessibility in 2015. Paper available at http://web.ist.utl.pt/hugo.nicolau/publications_year.html]]>
Paper presented at ACM SIGACCESS Conference on Computers and Accessibility in 2015. Paper available at http://web.ist.utl.pt/hugo.nicolau/publications_year.html]]> Tue, 24 Nov 2015 17:21:50 GMT /slideshow/typing-performance-of-blind-users-an-analysis-of-touch-behaviors-learning-and-insitu-usage/55472913 hnicolau@slideshare.net(hnicolau) Typing Performance of Blind Users: An Analysis of Touch Behaviors, Learning, and In-Situ Usage hnicolau Paper presented at ACM SIGACCESS Conference on Computers and Accessibility in 2015. Paper available at http://web.ist.utl.pt/hugo.nicolau/publications_year.html <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/assets2015-151124172150-lva1-app6892-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Paper presented at ACM SIGACCESS Conference on Computers and Accessibility in 2015. Paper available at http://web.ist.utl.pt/hugo.nicolau/publications_year.html
Typing Performance of Blind Users: An Analysis of Touch Behaviors, Learning, and In-Situ Usage from Hugo Nicolau
]]> 423 8 https://cdn.slidesharecdn.com/ss_thumbnails/assets2015-151124172150-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 HoliBraille: Multipoint Vibrotactile Feedback on Mobile Devices /slideshow/w4a2015-48484638/48484638 w4a2015-150522143352-lva1-app6891
Presentation at Web for All Conference 2015 (W4A'15) #w4a15 We propose HoliBraille, a system that enables Braille input and output on current mobile devices. We use vibrotactile motors combined with dampening materials in order to actuate directly on users¡¯ fingers. The prototype can be attached to current capacitive touchscreen devices enabling multipoint and localized feedback. HoliBraille can be leveraged in several applications including educational tools for learning Braille, as a communication device for deaf-blind people, and as a tactile feedback system for multitouch Braille input. We conducted a user study with 12 blind participants on Braille character discrimination. Results show that HoliBraille is effective in providing localized feedback; however, character discrimination performance is strongly related with number of simultaneous stimuli. We finish by discussing the obtained results and propose future research avenues to improve multipoint vibrotactile perception.]]>
Presentation at Web for All Conference 2015 (W4A'15) #w4a15 We propose HoliBraille, a system that enables Braille input and output on current mobile devices. We use vibrotactile motors combined with dampening materials in order to actuate directly on users¡¯ fingers. The prototype can be attached to current capacitive touchscreen devices enabling multipoint and localized feedback. HoliBraille can be leveraged in several applications including educational tools for learning Braille, as a communication device for deaf-blind people, and as a tactile feedback system for multitouch Braille input. We conducted a user study with 12 blind participants on Braille character discrimination. Results show that HoliBraille is effective in providing localized feedback; however, character discrimination performance is strongly related with number of simultaneous stimuli. We finish by discussing the obtained results and propose future research avenues to improve multipoint vibrotactile perception.]]> Fri, 22 May 2015 14:33:52 GMT /slideshow/w4a2015-48484638/48484638 hnicolau@slideshare.net(hnicolau) HoliBraille: Multipoint Vibrotactile Feedback on Mobile Devices hnicolau Presentation at Web for All Conference 2015 (W4A'15) #w4a15 We propose HoliBraille, a system that enables Braille input and output on current mobile devices. We use vibrotactile motors combined with dampening materials in order to actuate directly on users¡¯ fingers. The prototype can be attached to current capacitive touchscreen devices enabling multipoint and localized feedback. HoliBraille can be leveraged in several applications including educational tools for learning Braille, as a communication device for deaf-blind people, and as a tactile feedback system for multitouch Braille input. We conducted a user study with 12 blind participants on Braille character discrimination. Results show that HoliBraille is effective in providing localized feedback; however, character discrimination performance is strongly related with number of simultaneous stimuli. We finish by discussing the obtained results and propose future research avenues to improve multipoint vibrotactile perception. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/w4a2015-150522143352-lva1-app6891-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Presentation at Web for All Conference 2015 (W4A&#39;15) #w4a15 We propose HoliBraille, a system that enables Braille input and output on current mobile devices. We use vibrotactile motors combined with dampening materials in order to actuate directly on users¡¯ fingers. The prototype can be attached to current capacitive touchscreen devices enabling multipoint and localized feedback. HoliBraille can be leveraged in several applications including educational tools for learning Braille, as a communication device for deaf-blind people, and as a tactile feedback system for multitouch Braille input. We conducted a user study with 12 blind participants on Braille character discrimination. Results show that HoliBraille is effective in providing localized feedback; however, character discrimination performance is strongly related with number of simultaneous stimuli. We finish by discussing the obtained results and propose future research avenues to improve multipoint vibrotactile perception.
HoliBraille: Multipoint Vibrotactile Feedback on Mobile Devices from Hugo Nicolau
]]> 429 1 https://cdn.slidesharecdn.com/ss_thumbnails/w4a2015-150522143352-lva1-app6891-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 B#: Chord-based Correction for Multitouch Braille Input /slideshow/b-chordbased-correction-for-multitouch/34589386 chi2014-140512171557-phpapp02
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]]> Mon, 12 May 2014 17:15:57 GMT /slideshow/b-chordbased-correction-for-multitouch/34589386 hnicolau@slideshare.net(hnicolau) B#: Chord-based Correction for Multitouch Braille Input hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/chi2014-140512171557-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
B#: Chord-based Correction for Multitouch Braille Input from Hugo Nicolau
]]> 703 2 https://cdn.slidesharecdn.com/ss_thumbnails/chi2014-140512171557-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 UbiBraille: Designing and Evaluating a Vibrotactile Braille-Reading Device. /slideshow/ubibraille-designing-and-evaluating-a-vibrotactile-braillereading-device-27499548/27499548 assets2013-clean-131023125345-phpapp02
Research paper presented at SIGACCESS ASSETS 2013]]>
Research paper presented at SIGACCESS ASSETS 2013]]> Wed, 23 Oct 2013 12:53:45 GMT /slideshow/ubibraille-designing-and-evaluating-a-vibrotactile-braillereading-device-27499548/27499548 hnicolau@slideshare.net(hnicolau) UbiBraille: Designing and Evaluating a Vibrotactile Braille-Reading Device. hnicolau Research paper presented at SIGACCESS ASSETS 2013 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/assets2013-clean-131023125345-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Research paper presented at SIGACCESS ASSETS 2013
UbiBraille: Designing and Evaluating a Vibrotactile Braille-Reading Device. from Hugo Nicolau
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Assets2013 clean from Hugo Nicolau
]]> 322 3 https://cdn.slidesharecdn.com/ss_thumbnails/assets2013-clean-131023125049-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Elderly Text-Entry Performance on Touchscreens /slideshow/elderly-textentry-performance-on-touchscreens/14916934 assets2012-121028000320-phpapp01
My presentation at ACM ASSETS 2012. Abstract: ]]>
My presentation at ACM ASSETS 2012. Abstract: ]]> Sun, 28 Oct 2012 00:03:18 GMT /slideshow/elderly-textentry-performance-on-touchscreens/14916934 hnicolau@slideshare.net(hnicolau) Elderly Text-Entry Performance on Touchscreens hnicolau My presentation at ACM ASSETS 2012. Abstract: <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/assets2012-121028000320-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> My presentation at ACM ASSETS 2012. Abstract:
Elderly Text-Entry Performance on Touchscreens from Hugo Nicolau
]]> 630 2 https://cdn.slidesharecdn.com/ss_thumbnails/assets2012-121028000320-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Touch Typing using Thumbs: Understanding the Effect of Mobility and Hand Posture /slideshow/touch-typing-using-thumbs-understanding-the-effect-of-mobility-and-hand-posture/12925275 chi12-120514084405-phpapp02
Presentation @ CHI'12]]>
Presentation @ CHI'12]]> Mon, 14 May 2012 08:44:03 GMT /slideshow/touch-typing-using-thumbs-understanding-the-effect-of-mobility-and-hand-posture/12925275 hnicolau@slideshare.net(hnicolau) Touch Typing using Thumbs: Understanding the Effect of Mobility and Hand Posture hnicolau Presentation @ CHI'12 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/chi12-120514084405-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Presentation @ CHI&#39;12
Touch Typing using Thumbs: Understanding the Effect of Mobility and Hand Posture from Hugo Nicolau
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]]> Fri, 11 Nov 2011 10:51:35 GMT /slideshow/mobile-interaction-a-survey/10121711 hnicolau@slideshare.net(hnicolau) Mobile Interaction A Survey hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2010nicolautipresentation-111111105137-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Mobile Interaction A Survey from Hugo Nicolau
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]]> Fri, 11 Nov 2011 10:48:14 GMT /slideshow/disabled-r-all-bridging-the-gap-between-accessibility-and-usability/10121638 hnicolau@slideshare.net(hnicolau) Disabled ¡®R¡¯ All: Bridging the gap between Accessibility and Usability hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/cat-111111104816-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Disabled ¡®R¡¯ All: Bridging the gap between Accessibility and Usability from Hugo Nicolau
]]> 528 127 https://cdn.slidesharecdn.com/ss_thumbnails/cat-111111104816-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Bases para Reabilita??o Assistida /slideshow/bases-para-reabilitao-assistida/10121458 rehabinteraccao-111111103919-phpapp01
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]]> Fri, 11 Nov 2011 10:39:15 GMT /slideshow/bases-para-reabilitao-assistida/10121458 hnicolau@slideshare.net(hnicolau) Bases para Reabilita??o Assistida hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/rehabinteraccao-111111103919-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Bases para ReabilitaÙãß_o Assistida from Hugo Nicolau
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]]> Fri, 11 Nov 2011 10:26:34 GMT https://pt.slideshare.net/slideshow/reabilitar-o-processo-de-reabilitao/10121280 hnicolau@slideshare.net(hnicolau) Reabilitar o Processo de Reabilita??o hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/apresentacaoconf-111111102636-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
from Hugo Nicolau
]]> 474 127 https://cdn.slidesharecdn.com/ss_thumbnails/apresentacaoconf-111111102636-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Towards Accessible Touch Interfaces /slideshow/towards-accessible-touch-interfaces/10121237 accessible-111111102329-phpapp01
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]]> Fri, 11 Nov 2011 10:23:27 GMT /slideshow/towards-accessible-touch-interfaces/10121237 hnicolau@slideshare.net(hnicolau) Towards Accessible Touch Interfaces hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/accessible-111111102329-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Towards Accessible Touch Interfaces from Hugo Nicolau
]]> 526 125 https://cdn.slidesharecdn.com/ss_thumbnails/accessible-111111102329-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 NavTap: A Long Term Study with Excluded Blind Users /slideshow/navtap-a-long-term-study-with-excluded-blind-users/10121147 2009assetsblono-111111101625-phpapp02
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]]> Fri, 11 Nov 2011 10:16:24 GMT /slideshow/navtap-a-long-term-study-with-excluded-blind-users/10121147 hnicolau@slideshare.net(hnicolau) NavTap: A Long Term Study with Excluded Blind Users hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2009assetsblono-111111101625-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
NavTap: A Long Term Study with Excluded Blind Users from Hugo Nicolau
]]> 415 125 https://cdn.slidesharecdn.com/ss_thumbnails/2009assetsblono-111111101625-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Assessing Mobile Touch Interfaces for Tetraplegics /slideshow/assessing-mobile-touch-interfaces-for-tetraplegics-10121027/10121027 2010mobilehciaccessible-111111100933-phpapp01
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]]> Fri, 11 Nov 2011 10:09:31 GMT /slideshow/assessing-mobile-touch-interfaces-for-tetraplegics-10121027/10121027 hnicolau@slideshare.net(hnicolau) Assessing Mobile Touch Interfaces for Tetraplegics hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2010mobilehciaccessible-111111100933-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Assessing Mobile Touch Interfaces for Tetraplegics from Hugo Nicolau
]]> 337 124 https://cdn.slidesharecdn.com/ss_thumbnails/2010mobilehciaccessible-111111100933-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 BrailleType: Unleashing Braille over Touch Screen Mobile Phones /slideshow/brailletype-unleashing-braille-over-touch-screen-mobile-phones/10120967 brailletype-111111100440-phpapp01
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]]> Fri, 11 Nov 2011 10:04:36 GMT /slideshow/brailletype-unleashing-braille-over-touch-screen-mobile-phones/10120967 hnicolau@slideshare.net(hnicolau) BrailleType: Unleashing Braille over Touch Screen Mobile Phones hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/brailletype-111111100440-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
BrailleType: Unleashing Braille over Touch Screen Mobile Phones from Hugo Nicolau
]]> 646 125 https://cdn.slidesharecdn.com/ss_thumbnails/brailletype-111111100440-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Investigating the Effectiveness of Assistive Technologies on Situationally Impaired Users /slideshow/investigating-the-effectiveness-of-assistive-technologies-on-situationally-impaired-users/10120923 presentation-111111100137-phpapp01
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]]> Fri, 11 Nov 2011 10:01:34 GMT /slideshow/investigating-the-effectiveness-of-assistive-technologies-on-situationally-impaired-users/10120923 hnicolau@slideshare.net(hnicolau) Investigating the Effectiveness of Assistive Technologies on Situationally Impaired Users hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/presentation-111111100137-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Investigating the Effectiveness of Assistive Technologies on Situationally Impaired Users from Hugo Nicolau
]]> 487 125 https://cdn.slidesharecdn.com/ss_thumbnails/presentation-111111100137-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Towards Mobile Touch Screen Inclusive User Interfaces: Differences and Similarities between Motor Impaired and Able-Bodied Users /slideshow/towards-mobile-touch-screen-inclusive-user-interfaces-differences-and-similarities-between-motor-impaired-and-ablebodied-users/10120884 presentation-111111095804-phpapp02
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]]> Fri, 11 Nov 2011 09:58:03 GMT /slideshow/towards-mobile-touch-screen-inclusive-user-interfaces-differences-and-similarities-between-motor-impaired-and-ablebodied-users/10120884 hnicolau@slideshare.net(hnicolau) Towards Mobile Touch Screen Inclusive User Interfaces: Differences and Similarities between Motor Impaired and Able-Bodied Users hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/presentation-111111095804-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Towards Mobile Touch Screen Inclusive User Interfaces: Differences and Similarities between Motor Impaired and Able-Bodied Users from Hugo Nicolau
]]> 487 125 https://cdn.slidesharecdn.com/ss_thumbnails/presentation-111111095804-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 ASSETS'11 Doctoral Consortium /slideshow/assets11-doctoram-consortium/10120812 dcpresentation-111111095252-phpapp02
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]]> Fri, 11 Nov 2011 09:52:51 GMT /slideshow/assets11-doctoram-consortium/10120812 hnicolau@slideshare.net(hnicolau) ASSETS'11 Doctoral Consortium hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/dcpresentation-111111095252-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
ASSETS'11 Doctoral Consortium from Hugo Nicolau
]]> 474 124 https://cdn.slidesharecdn.com/ss_thumbnails/dcpresentation-111111095252-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Assessing mobile touch interfaces for tetraplegics /slideshow/assessing-mobile-touch-interfaces-for-tetraplegics/5252798 2010mobilehciaccessible-100921170825-phpapp01
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]]> Tue, 21 Sep 2010 17:08:10 GMT /slideshow/assessing-mobile-touch-interfaces-for-tetraplegics/5252798 hnicolau@slideshare.net(hnicolau) Assessing mobile touch interfaces for tetraplegics hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/2010mobilehciaccessible-100921170825-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Assessing mobile touch interfaces for tetraplegics from Hugo Nicolau
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]]> Sat, 06 Jun 2009 07:12:12 GMT /slideshow/blobby-dsai/1541766 hnicolau@slideshare.net(hnicolau) Blobby DSAI hnicolau <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/dsaiblobby-090606071215-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
Blobby DSAI from Hugo Nicolau
]]> 652 4 https://cdn.slidesharecdn.com/ss_thumbnails/dsaiblobby-090606071215-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 https://cdn.slidesharecdn.com/profile-photo-hnicolau-48x48.jpg?cb=1682062801 web.ist.utl.pt/hugo.nicolau/ https://cdn.slidesharecdn.com/ss_thumbnails/assets2015-151124172150-lva1-app6892-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/typing-performance-of-blind-users-an-analysis-of-touch-behaviors-learning-and-insitu-usage/55472913 Typing Performance of ... https://cdn.slidesharecdn.com/ss_thumbnails/w4a2015-150522143352-lva1-app6891-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/w4a2015-48484638/48484638 HoliBraille: Multipoin... https://cdn.slidesharecdn.com/ss_thumbnails/chi2014-140512171557-phpapp02-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/b-chordbased-correction-for-multitouch/34589386 B#: Chord-based Correc...