Contact

Richard E. Ladner
CSE 476
206-543-9347
ladnercs.washington.edu
Areas of interest: 

Access technology, algorithms, complexity
Google Scholar Page
DBLP Page
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Accessible to Whom? Bringing Accessibility to Blocks

A. Stefik, W. Allee, G. Contreras, T. Kluthe, A. Hoffman, B. Blaser, R.E. Ladner, Proceedings of the 55th ACM Technical Symposium on Computer Science Education, SIGCSE 2024, Volume 1, Portland, OR, USA, March 20-23, 2024, ACM, 2024.

Understanding and Enhancing The Role of Speechreading in Online d/DHH Communication Accessibility

A. Desai, J. Mankoff, R.E. Ladner, Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems, Association for Computing Machinery, 2023.

ASL Citizen: A Community-Sourced Dataset for Advancing Isolated Sign Language Recognition

A. Desai, L. Berger, F. Minakov, N. Milano, C. Singh, K. Pumphrey, R.E. Ladner, H. Daumé, A.X. Lu, N. Caselli, D. Bragg, Advances in Neural Information Processing Systems 36: Annual Conference on Neural Information Processing Systems 2023, NeurIPS 2023, New Orleans, LA, USA, December 10 - 16, 2023, 2023.

Program-L: Online Help Seeking Behaviors by Blind and Low Vision Programmers

J. Johnson, A. Begel, R. Ladner, D. Ford, 2022 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC), 2022.

The FATE Landscape of Sign Language AI Datasets: An Interdisciplinary Perspective

D. Bragg, N. Caselli, J.A. Hochgesang, M. Huenerfauth, L. Katz-Hernandez, O. Koller, R. Kushalnagar, C. Vogler, R.E. Ladner, ACM Trans. Access. Comput. 14, 2021.

Expanding a Large Inclusive Study of Human Listening Rates

D. Bragg, K. Reinecke, R.E. Ladner, ACM Trans. Access. Comput. 14, 2021.

Broadening Participation by Teaching Accessibility

K. Walther, R.E. Ladner, Commun. ACM 64, 2021.

Why is Data on Disability so Hard to Collect and Understand?

B. Blaser, R.E. Ladner, 2020 Research on Equity and Sustained Participation in Engineering, Computing, and Technology (RESPECT), 2020.

Computer Science Principles for Teachers of Deaf Students

R.E. Ladner, A. Stefik, J. Naumann, E. Peach, 2020 Research on Equity and Sustained Participation in Engineering, Computing, and Technology (RESPECT), 2020.

Position: Accessible Block-Based Programming: Why and How

L.R. Milne, R.E. Ladner, 2019 IEEE Blocks and Beyond Workshop (B B), 2019.

GestureCalc: An Eyes-Free Calculator for Touch Screens

B. Chaudhuri, L. Perlmutter, J. Petelka, P. Garrison, J. Fogarty, J.O. Wobbrock, R.E. Ladner, The 21st International ACM SIGACCESS Conference on Computers and Accessibility, ACM, 2019.

Understanding the Impact of TVIs on Technology Use and Selection by Children with Visual Impairments

C.M. Baker, L.R. Milne, R.E. Ladner, Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems, ACM, 2019.

Educational Experiences of Blind Programmers

C.M. Baker, C.L. Bennett, R.E. Ladner, Proceedings of the 50th ACM Technical Symposium on Computer Science Education, ACM, 2019.

Computer Science Principles for Teachers of Blind and Visually Impaired Students

A. Stefik, R.E. Ladner, W. Allee, S. Mealin, Proceedings of the 50th ACM Technical Symposium on Computer Science Education, ACM, 2019.

Who Teaches Accessibility?: A Survey of U.S. Computing Faculty

K. Shinohara, S. Kawas, A.J. Ko, R.E. Ladner, Proceedings of the 49th ACM Technical Symposium on Computer Science Education, ACM, 2018.

Designing an Animated Character System for American Sign Language

D. Bragg, R. Kushalnagar, R. Ladner, Proceedings of the 20th International ACM SIGACCESS Conference on Computers and Accessibility, ACM, 2018.

A Large Inclusive Study of Human Listening Rates

D. Bragg, C. Bennett, K. Reinecke, R. Ladner, Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, ACM, 2018.

Blocks4All: Overcoming Accessibility Barriers to Blocks Programming for Children with Visual Impairments

L.R. Milne, R.E. Ladner, Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, ACM, 2018.

Making Your Presentation Accessible

R.E. Ladner, K. Rector, interactions 24, 2017.

Design and Real-World Evaluation of Eyes-Free Yoga: An Exergame for Blind and Low-Vision Exercise

K. Rector, R. Vilardaga, L. Lansky, K. Lu, C.L. Bennett, R.E. Ladner, J.A. Kientz, ACM Transactions on Accessible Computing (TACCESS) 9, 2017.

Lessons learned: Engaging students with disabilities on a national scale

B. Blaser, R. Ladner, S. Burgstahler, Research on Equity and Sustained Participation in Engineering, Computing, and Technology (RESPECT), 2016, IEEE, 2016.

Tactile Graphics with a Voice

C.M. Baker, L.R. Milne, R. Drapeau, J. Scofield, C.L. Bennett, R.E. Ladner, ACM Trans. Access. Comput. 8, 2016.

Improving Real-Time Captioning Experiences for Deaf and Hard of Hearing Students

S. Kawas, G. Karalis, T. Wen, R.E. Ladner, Proceedings of the 18th International ACM SIGACCESS Conference on Computers and Accessibility, ACM, 2016.

"For All" in "Computer Science for All"

R.E. Ladner, M. Israel, Commun. ACM 59, 2016.

AccessComputing Promotes Teaching Accessibility

A.J. Ko, R.E. Ladner, ACM Inroads 7, 2016.

A Personalizable Mobile Sound Detector App Design for Deaf and Hard-of-Hearing Users

D. Bragg, N. Huynh, R.E. Ladner, Proceedings of the 18th International ACM SIGACCESS Conference on Computers and Accessibility, ACM, 2016.

StructJumper: A Tool to Help Blind Programmers Navigate and Understand the Structure of Code

C.M. Baker, L.R. Milne, R.E. Ladner, Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, ACM, 2015.

Increasing the Participation of Individuals with Disabilities in Computing

R.E. Ladner, S. Burgstahler, Commun. ACM 58, 2015.

Exploring the Opportunities and Challenges with Exercise Technologies for People Who Are Blind or Low-Vision

K. Rector, L. Milne, R.E. Ladner, B. Friedman, J.A. Kientz, Proceedings of the 17th International ACM SIGACCESS Conference on Computers &\#38; Accessibility, ACM, 2015.

A User-Powered American Sign Language Dictionary

D. Bragg, K. Rector, R.E. Ladner, Proceedings of the 18th ACM Conference on Computer Supported Cooperative Work &\#38; Social Computing, ACM, 2015.

Design for User Empowerment

R.E. Ladner, interactions 22, 2015.

Evaluating Intelligibility and Battery Drain of Mobile Sign Language Video Transmitted at Low Frame Rates and Bit Rates

J.J. Tran, E.A. Riskin, R.E. Ladner, J.O. Wobbrock, ACM Trans. Access. Comput. 7, 2015.

Work-based learning experiences help students with disabilities transition to careers: A case study of University of Washington projects

S. Bellman, S. Burgstahler, R. Ladner, Work: A Journal of Prevention, Assessment, and Rehabilitation 48, 2014.

The Accessibility of Mobile Health Sensors for Blind Users

L.R. Milne, C.L. Bennett, R.E. Ladner, Journal on Technology and Persons with Disabilities 2, 2014.

The impact of the United Nations convention on the rights of persons with disabilities

R.E. Ladner, Commun. ACM 57, 2014.

BraillePlay: educational smartphone games for blind children

L.R. Milne, C.L. Bennett, R.E. Ladner, S. Azenkot, Proceedings of the 16th international ACM SIGACCESS conference on Computers & accessibility, ASSETS '14, Rochester, NY, USA, October 20-22, 2014, 2014.

Analyzing the intelligibility of real-time mobile sign language video transmitted below recommended standards

J.J. Tran, B. Flowers, E.A. Riskin, R.E. Ladner, J.O. Wobbrock, Proceedings of the 16th international ACM SIGACCESS conference on Computers & accessibility, ASSETS '14, Rochester, NY, USA, October 20-22, 2014, 2014.

Tactile graphics with a voice: using QR codes to access text in tactile graphics

C.M. Baker, L.R. Milne, J. Scofield, C.L. Bennett, R.E. Ladner, Proceedings of the 16th international ACM SIGACCESS conference on Computers & accessibility, ASSETS '14, Rochester, NY, USA, October 20-22, 2014, 2014.

Fast algorithms for designing nearly optimal lookup tables for complexity control of the H.264 encoder

R. Vanam, E.A. Riskin, R.E. Ladner, S.S. Hemami, Signal, Image and Video Processing 7, 2013.

DigiTaps: eyes-free number entry on touchscreens with minimal audio feedback

S. Azenkot, C.L. Bennett, R.E. Ladner, The 26th Annual ACM Symposium on User Interface Software and Technology, UIST'13, St. Andrews, United Kingdom, October 8-11, 2013, 2013.

Bilingual Voice Conversion by Weighted Frequency Warping Based on Formant Space

Y.S. Yun, R.E. Ladner, Text, Speech, and Dialogue - 16th International Conference, TSD 2013, Pilsen, Czech Republic, September 1-5, 2013. Proceedings, 2013.

The need to balance innovation and implementation in broadening participation

R.E. Ladner, E. Litzler, Commun. ACM 55, 2012.

PassChords: secure multi-touch authentication for blind people

S. Azenkot, K. Rector, R.E. Ladner, J.O. Wobbrock, The 14th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS '12, Boulder, CO, USA, October 22 - 24, 2012, 2012.

Windows scheduling of arbitrary-length jobs on multiple machines

A. Bar-Noy, R.E. Ladner, T. Tamir, T. VanDeGrift, J. Scheduling 15, 2012.

Near-lossless and lossy compression of imaging spectrometer data: comparison of information extraction performance

A.C. Miguel, E.A. Riskin, R.E. Ladner, D. Barney, Signal, Image and Video Processing 6, 2012.

Input finger detection for nonvisual touch screen text entry in Perkinput

S. Azenkot, J.O. Wobbrock, S. Prasain, R.E. Ladner, Proceedings of the Graphics Interface 2012 Conference, GI '12, Toronto, ON, Canada, May 28-30, 2012, 2012.

Communication Technologies for People With Sensory Disabilities

R.E. Ladner, Proceedings of the IEEE 100, 2012.

Enhancing Independence and Safety for Blind and Deaf-Blind Public Transit Riders

S. Azenkot, S. Prasain, A. Borning, E. Fortuna, R. Ladner, J. Wobbrock, ACM Conference on Human Factors in Computing Systems (CHI), 2011.

The design of human-powered access technology

J.P. Bigham, R.E. Ladner, Y. Borodin, The 13th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS '11, Dundee, Scotland, UK, October 24-26, 2011, 2011.

Usable gestures for blind people: understanding preference and performance

S.K. Kane, J.O. Wobbrock, R.E. Ladner, 29th International Conference on Human Factors in Computing Systems, 2011.

Improving Compressed Video Sign Language Conversations in the Presence of Data Loss

J. Chon, S. Whittle, E.A. Riskin, R.E. Ladner, Data Compression Conference 2011, 2011.

Evaluating quality and comprehension of real-time sign language video on mobile phones

J.J. Tran, J. Kim, J. Chon, E.A. Riskin, R.E. Ladner, J.O. Wobbrock, The 13th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS '11, Dundee, Scotland, UK, October 24-26, 2011, 2011.

What the Disability Community Can Teach Us About Interactive Crowd Sourcing

J.P. Bigham, R.E. Ladner, Interactions 18:4, 2011.

Access overlays: improving non-visual access to large touch screens for blind users

S.K. Kane, M.Ringel Morris, A.Z. Perkins, D. Wigdor, R.E. Ladner, J.O. Wobbrock, Proceedings of the 24th Annual ACM Symposium on User Interface Software and Technology, Santa Barbara, CA, USA, October 16-19, 2011, 2011.

Data trends on minorities and people with disabilities in computing

V.E. Taylor, R.E. Ladner, Commun. ACM 54, 2011.

A web-based user survey for evaluating power saving strategies for deaf users of mobileASL

J.J. Tran, T.W. Johnson, J. Kim, R. Rodriguez, S. Yin, E.A. Riskin, R.E. Ladner, J.O. Wobbrock, Proceedings of the 12th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS 2010, Orlando, FL, USA, October 25 - 27, 2010, 2010.

Accessible Technology and Models of Disabiliity

R.E. Ladner, M.M.K. Oishi (Editor), I.M. Mitchel (Editor), M.V.H.F. Loos (Editor), Design and Use of Assistive Technology: Social, Technical, Ethical, and Economic, 2010.

Asl-stem forum: enabling sign language to grow through online collaboration

A. Cavender, D.S. Otero, J.P. Bigham, R.E. Ladner, Proceedings of the 28th International Conference on Human Factors in Computing Systems, CHI 2010, Atlanta, Georgia, USA, April 10-15, 2010, 2010.

ClassInFocus: Enabling Improved Visual Attention Strategies for Deaf and Hard of Hearing Students

A. Cavender, J. Bigham, R. Ladner, ACM SIGACCESS Conference on Assistive Technologies, 2009.

Activity Analysis Enabling Real-Time Video Communication on Mobile Phones for Deaf Users

N. Cherniavsky, J. Chon, J. Wobbrock, R. Ladner, E. Riskin, Symposium on User Interface Software and Technology, 2009.

Persons With Disabilities: Broadening Participation and Accessibility Research

R.E. Ladner, Computing Research News, 2009.

The Summer Academy for Advancing Deaf and Hard of Hearing in Computing

A.C. Cavender, R.I. Roth, R.E. Ladner, SIGCSE Technical Symposium on Computer Science Education, 2009.

Activity Analysis Enabling Real-time Video Communication on Mobile Phones for Deaf Users

N. Cherniavsky, J. Chon, J. Wobbrock, R.E. Ladner, E. Riskin, ACM Symposium on User Interface Software and Technology, 2009.

H.264/MPEG-4 AVC Encoder Parameter Selection Algorithms for Complexity Distortion Tradeoff

R. Vanam, E.A. Riskin, R.E. Ladner, Data Compression Conference, 2009.

Freedom to Roam: Mobile Device Opportunities and Challenges for People with Visual and Motor Impairments

S.K. Kane, C. Jayant, J.O. Wobbrock, R.E. Ladner, ACM SIGACCESS Conference on Computers and Accessibility, 2009.

Broadening participation - Opening Remarks

R.E. Ladner, Communications of the ACM 52:12, 2009.

ClassInFocus: Enabling Improved Visual Attention Strategies for Deaf and Hard of Hearing Students

A.C. Cavender, J.P. Bigham, R.E. Ladner, Eleventh International ACM SIGACCESS Conference on Computers and Accessibility, 2009.

WebAnywhere - A Screen Reader On-the-Go

J. Bigham, C. Prince, R. Ladner, Dub Retreat, 2008.

Hunting for Headings: Sighted Labeling vs. Automatic Classification of Headings

J. Brudvik, J. Bigham, A. Cavender, R. Ladner, ACM SIGACCESS Conference on Assistive Technologies, 2008.

ASL-STEM Forum: A Bottom-Up Approach to Enabling American Sign Language to Grow in STEM Fields

J. Bigham, D. Otero, J. DeWitt, A. Cavender, R. Ladner, International Conference on Weblogs and Social Media, 2008.

Scheduling Techniques for Media-on-Demand.

A. Bar-Noy, R.E. Ladner, T. Tamir, Algorithmica 52, 2008.

Scheduling Techniques for Media-on-Demand

A. Bar-Noy, R.E. Ladner, T. Tamir, Algorithmica 52, 2008.

Optimal Delay for Media-on-Demand with Pre-Loading and Pre-Buffering

A. Bar-Noy, R.E. Ladner, T. Tamir, Theoretical Computer Science 399, 2008.

The game of life: an outreach model for high school students with disabilities

R.E. Ladner, T. VanDeGrift, 39th ACM Technical Symposium on Computer Science Education, 2008.

WebAnywhere: a screen reader on-the-go

J.P. Bigham, C. Prince, S. Hahn, R.E. Ladner, International Cross-Disciplinary Conference on Web Accessibility, 2008.

Webanywhere: enabling a screen reading interface for the web on any computer

J.P. Bigham, C. Prince, R.E. Ladner, 17th International World Wide Web Conference, 2008.

WebAnywhere: A Screen Reader On-the-go

J.P. Bigham, C. Prince, R.E. Ladner, International Cross-Disciplinary Conference on Web Accessibility, 2008.

MobileASL: Intelligibility of Sign Language Video as Constrained by Mobile Phone Technology

A. Cavender, D.K. Barney, R.E. Ladner, R. Vanam, Disability and Rehabilitation: Assistive Technologies 3, 2008.

Hunting for Headings: Sighted Labeling vs. Automatic Classification of Headings

J.T. Brudvik, J.P. Bigham, A.C. Cavender, R.E. Ladner, Tenth International ACM SIGACCESS Conference on Computers and Accessibility, 2008.

Addressing Performance and Security in a Screen ReadingWeb Application that Enables Accessibility Anywhere. International Conference on Web Engineering

J.P. Bigham, C.M. Prince, R.E. Ladner, International Conference on Web Engineering, 2008.

Inspiring Blind High Schoolers to Pursue Computer Science with Instant Messenging Chatbots

J.P. Bigham, M. Aller, J.T. Brudvik, J.O. Leung, L. Yazzolino, R.E. Ladner, 39th ACM Technical Symposium on Computer Science Education, 2008.

Access and Empowerment: Commentary on "Computers and People with Disabilities"

R.E. Ladner, ACM Transactions on Acessible Computing 1:2:11, 2008.

Computer science for everyone: making your computing classes and departments accessible

R.E. Ladner, D. Comden, 39th ACM Technical Symposium on Computer Science Education, 2008.

Activity detection in conversational sign language video for mobile telecommunication

N. Cherniavsky, R.E. Ladner, E.A. Riskin, 8th International Conference on Face and Gesture Recognition, 2008.

Hearing Impairments

A. Cavender, R.E. Ladner, S. Harper (Editor), Y. Yesilada (Editor), Web Accessibility: A Foundation for Research, 2008.

General Buffer Scheme for the Windows Scheduling Problem

A. Bar-Noy, J. Christensen, R.E. Ladner, T. Tamir, ACM Journal on Experimental Algorithmics 13:6, 2008.

Variable Frame Rate for Low Power Mobile Sign Language Communication

N. Cherniavsky, A. Cavender, R. Ladner, E. Riskin, ACM SIGACCESS Conference on Assistive Technologies, 2007.

Reaching students with disabilities

, Computer Science Teachers Association, (CSTA) Voice, 2007.

Variable Frame Rate for Low Power Mobile Sign Language Communication

N. Cherniavsky, A. Cavender, R.E. Ladner, E. Riskin, Variable Frame Rate for Low Power Mobile Sign Language Communication, 2007.

Increasing the Participation of People with Disabilities in Computing Fields

S. Burgstahler, R.E. Ladner, Computer 40:94-97:5, 2007.

Equal access: Making your department accessible to students with disabilities

R.E. Ladner, The Journal of Computing Sciences in Colleges, 2007.

Windows Scheduling as a Restricted Version of Bin Packing

A. Bar-Noy, R.E. Ladner, T. Tamir, ACM Transactions on Algorithms 3:3, 2007.

WebinSitu: A Comparative Analysis of Blind and Sighted Browsing Behavior

J. Bigham, A. Cavender, J. Brudvik, J.O. Wobbrock, R.E. Ladner, Ninth International ACM SIGACCESS Conference on Computers and Accessibility, 2007.

Accessmonkey: A Collaborative Scripting Framework for Web Users and Developers

J. Bigham, R.E. Ladner, International Cross-Disciplinary Conference on Web Accessibility, 2007.

Riskin MultiStage: A MINMAX Bit Allocation Algorithm for Video

N. Cherniavsky, G. Shavit, M.F. Ringenburg, R.E. Ladner, IEEE Transactions on Circuits and Systems for Video Technology 17:1, 2007.

Distortion-Complexity Optimization of the H.264/MPEG-4 AVC Encoder using the GBFOS Algorithm

R. Vanam, E.A. Riskin, S.S. Hemami, R.E. Ladner, Data Compression Conference, 2007.

Algorithms to Take Advantage of Hardware Prefetching

S. Pan, C. Cherng, K. Dick, R.E. Ladner, Workshop on Algorithm Engineering and Experiments, 2007.

Automated Tactile Graphics Translation: In the Field

C. Jayant, M. Renzelmann, D. Wen, S. Krisnandi, R.E. Ladner, D. Comden, Ninth International ACM SIGACCESS Conference on Computers and Accessibility, 2007.

Broadening Participation of People with Disabilities in Computing Fields

S. Burgstahler, R. Ladner, D. Comden, 37th Frontiers in Education Conference, 2007.

A Web Accessibility Report Card for Top International University Web Sites

S. Kane, T.J. Shockley, J. Shulman, R.E. Ladner, International Cross-Disciplinary Conference on Web Accessibility, 2007.

MobileASL: Intelligibility of Sign Language Video as Constrained by Mobile Phone Technology

A. Cavender, R. Ladner, E. Riskin, ACM SIGACCESS Conference on Assistive Technologies, 2006.

Automated Classification of Protein Crystallization Images Using Support Vector Machines with Scale-Invariant Texture and Gabor Features.

S. Pan, G. Shavit, M. Penas-Centeno, D.H. Xu, L. Shapiro, R. Shapiro, R. Ladner, E. Riskin, W. Hol, D. Meldrum, Acta Crystallographica D, 2006.

Predictive Coding of Hyperspectral Images

A.C. Miguel, R.E. Ladner, E.A. Riskin, S. Hauck, D.K. Barney, A.R. Askew, A. Chang, G. Motta (Editor), F. Rizzo (Editor), J.A. Storer (Editor), Hyperspectral Data Compression, Business Media, Inc., 2006.

Predicting Intelligibility of Compressed American Sign Language Video With Objective Quality Metrics

F. Ciaramello, A. Cavender, S. Hemami, E. Riskin, R. Ladner, International Workshop on Video Processing and Quality Metrics for Consumer Electronics, 2006.

Semi-Matchings for Bipartite Graphs and Load Balancing.

N.J.A. Harvey, R.E. Ladner, L. Lovasz, T. Tamir, Journal of Algorithms 59:1, 2006.

The Game of Life Workshop - Reaching Out To High School Students With Disabilities

T. VanDeGrift, R.E. Ladner, A. Poginy, S. Burgstahler, ASEE Annual Conference and Exposition, 2006.

WebInSight: Making Web Images Accessible

J.P. Bigham, R.S. Kaminsky, R.E. Ladner, O.M. Danielsson, G.L. Hempton, The Eighth International ACM SIGACCESS Conference on Computers and Accessibility, 2006.

Off-line and On-line Guaranteed Start-up Delay for Media-on-Demand with Stream Merging

A. Bar-Noy, L.R.E. J. Goshi, Journal of Discrete Algorithms 4:1, 2006.

Practical Low Delay Broadcast of Compressed Variable Bit Rate Movies

N. Cherniavsky, R.E. Ladner, Data Compression Conference, 2006.

MobileASL: Intelligibility of Sign Language Video as Constrained by Mobile Phone Technology

A. Cavender, R.E. Ladner, E.A. Riskin, The Eighth International ACM SIGACCESS Conference on Computers and Accessibility, 2006.

Agreement/Disagreement Classification: Exploiting Unlabeled Data using Contrast Classifiers

S. Hahn, M. Ostendorf, R.E. Ladner, Proceedings of the Human Language Technology Conference, 2006.

Near-Lossless Compression of Hyperspectral Images

A. Miguel, J. Liu, D. Barney, R.E. Ladner, E. Riskin, International Conference on Image Processing, 2006.

Optimal Delay for Media-on-Demand with Pre-loading and Pre-buffering

A. Bar-Noy, R.E. Ladner, T. Tamir, 13th Colloquium on Structural Information and Communication Complexity, 2006.

Optimal Adaptation Strategies for Golomb Codes on Correlated Sources

E.S. Hong, R.E. Ladner, IEEE International Conference on Image Processing 1, 2005.

Stream Merging for Live Continuous Broadcast with Time-Shifting

A. Bar-Noy, G. Goshi, R.E. Ladner, T. VanDeGrift, 2nd International Conference on Broadband Networks, 2005.

Window Scheduling of Arbitrary Length Jobs on Parallel Machines

A. Bar-Noy, R.E. Ladner, T. Tamir, T. VanDeGrift, Proceedings of the 17th Annual ACM Symposium on Parallel Algorithms, 2005.

Unequal Loss Protection for H.263 Compressed Video

J. Goshi, A.E. Mohr, R.E. Ladner, E.A. Riskin, A. Lippman, Transactions on Circuits and Systems for Video Technology 15:5, 2005.

MINMAX Bit Allocation for Quantization-Based Video Coders

G. Shavit, R.E. Ladner, E.A. Riskin, Data Compression Conference, 2005.

Cache Efficient Simple Dynamic Progamming

C. Cherng, R.E. Ladner, 2005 International Conference on the Analysis of Algorithms, 2005.

A General Buffer Scheme for the Windows Scheduling Problem

A. Bar-Noy, J. Christensen, R.E. Ladner, T. Tamir, 4th International Workshop on Efficient and Experimental Algorithms, 2005.

Automating Tactile Graphics Translation

R.E. Ladner, M.Y. Ivory, R. Rao, S. Burgstahler, D. Comden, S. Hahn, M. Renzelmann, S. Krisnandi, M. Ramasamy, B. Slabosky, A. Martin, A. Lacenski, S. Olsen, D. Croce, The Seventh International ACM SIGACCESS Conference on Computers and Accessibility, 2005.

Reduced Complexity Wavelet-Based Predictive Coding of Hyperspectral Images for FPGA Implementation

A.C. Miguel, A.R. Askew, A. Chang,  S.Hauck, R.E. Ladner, E.A. Riskin, Data Compression Conference, 2004.

Windows Scheduling as a Restricted Version of Bin Packing

A. Bar-Noy, R.E. Ladner, T. Tamir, Fifteenth Annual ACM-SIAM Symposium on Discrete Algorthims, 2004.

Group Testing for Video Compression

G. Shavit, M.F. Ringenburg, J. West, R.E. Ladner, E.A. Riskin, Data Compression Conference, 2004.

Global MINMAX Interframe Bit Allocation for Embedded Video Coding

M.F. Ringenburg, R.E. Ladner, E.A. Riskin, Data Compression Conference, 2004.

Efficient Algorithms for Optimal Stream Merging for Media-on-Demand

A. Bar-Noy, R.E. Ladner, SIAM Journal on Computing 33:5, 2004.

Comparison of Stream Merging Algorithms for Media-on-Demand

A. Bar-Noy, G. Goshi, R.E. Ladner, K. Tam, Multimedia Systems Journal 9, 2004.

Unequal Loss Protection for H.263 Compressed Video

J. Goshi, R.E. Ladner, A.E. Mohr, E.A. Riskin, A. Lippman, IEEE Data Compression Conference, 2003.

Windows Scheduling Problems for Broadcast Systems

A. Bar-Noy, R.E. Ladner, SIAM Journal on Computing 32:4, 2003.

Unequal Loss Protection for H.263 Compressed Video

J. Goshi, R.E. Ladner, A.E. Mohr, E.A. Riskin, A. Lippman, IEEE Data Compression Conference, 2003.

Semi-Matchings for Bipartite Graphs and Load Balancing

N.J.A. Harvey, R.E. Ladner, L. Lovasz, T. Tamir, Workshop on Algorithms and Data Structures, 2003.

Algorithms for Dynamic Multicast Key Distribution Trees

J. Goshi, R.E. Ladner, Twenty-Second ACM Symposium on Principles of Distributed Computing, 2003.

Off-line and On-line Guaranteed Start-up Delay for Media-on-Demand with Stream Merging

A. Bar-Noy, J. Goshi, R.E. Ladner, Fifteenth ACM Symposium on Parallelism in Algorithms and Architectures, 2003.

Group Testing for Image Compression Using Alternative Transforms

E. Hong, R.E. Ladner, E.A. Riskin, Signal Processing: Image Communication 18, 2003.

Scheduling Techniques for Media-on-Demand

A. Bar-Noy, R.E. Ladner, T. Tamir, Thirteenth Annual ACM-SIAM Symposium on Discrete Algorthims, 2003.

Protecting regions of interest in medical images in a lossy packet network

T. Wu, A.C. Miguel, E.A. Riskin, A.E. Mohr, R.E. Ladner, S. Hauck, Medical Imaging 2002: PACS and Integrated Medical Information Systems: Design and Evaluation 4685, 2002.

Thresholds and Optimal Binary Comparison Search Trees.

R. Anderson, S. Kannan, H. Karloff, R.E. Ladner, Journal of Algorithms 44, 2002.

Windows Scheduling Problems for Broadcast Systems

A. Bar-Noy, R.E. Ladner, Thirteenth Annual ACM-SIAM Symposium on Discrete Algorthims, 2002.

Nearest Neighbor Search for Data Compression

K. Zatloukal, M.H. Johnson, R.E. Ladner, M.H. Goldwasser (Editor), D.S. Johnson (Editor), C.C. McGeoch (Editor), Near Neighbor Searches, and Methodology: Fifth and Sixth DIMACS Implementation Challenges 59, 2002.

Group Testing for Image Compression

E.S. Hong, R.E. Ladner, IEEE Transactions on Image Processing 11:88, 2002.

A Comparison of Cache Aware and Cache Oblivious Static Search Trees using Program Instrumentation

R.E. Ladner, R. Fortna, B.H. Nguyen, R. Fleischer (Editor), B. Moret, E.M. Schmidt, From Algorithm Design to Robust and Efficient Software, 2002.

Comparison of Stream Merging Algorithms for Media-on-Demand

A. Bar-Noy, G. Goshi, R.E. Ladner, K. Tam, Multimedia Computing and Networking, 2002.

Competitive On-Line Stream Merging Algorithms for Media-on-Demand

A. Bar-Noy, R.E. Ladner, Journal of Algorithms 48:1, 2002.

Thresholds and Optimal Binary Comparison Search Trees

R. Anderson, S. Kannan, H. Karloff, R.E. Ladner, Foundations of Software Technology and Theoretical Computer Science 21st Conference, 2001.

Wavelet Compression of MODIS Satellite Images

A. Lenharth, R.E. Ladner, S. Hauck, E.A. Riskin, A. Miguel, NASA Earth Science Technology Conference, 2001.

Group Testing for Wavelet Packet Image Compression

E.S. Hong, R.E. Ladner, E.A. Riskin, IEEE Data Compression Conference, 2001.

Group Testing for Block Transform Image Compression

E.S. Hong, R.E. Ladner, E.A. Riskin, Thirty-Fifth Annual Asilomar Conference on Signals, Systems, and Computers, 2001.

Approximately Optimal Assignment for Unequal Loss Protection

A.E. Mohr, E.A. Riskin, R.E. Ladner, Proceedings 2000 International Conference on Image Processing:367-370, 2001.

Competitive On-Line Stream Merging Algorithms for Media-on-Demand

A. Bar-Noy, R.E. Ladner, Twelfth Annual ACM-SIAM Symposium on Discrete Algorithms, 2001.

Unequal Loss Protection: Graceful Degradation of Image Quality Over Packet Erasure Channels Through Forward Error Correction

A.E. Mohr, E.A. Riskin, R.E. Ladner, IEEE Journal of Selected Areas in Communications Special Issue on Error-Resilient Image and Video Transmission 18:6, 2000.

Optimizing Static Calendar Queues

K.B. Erickson, R.E. Ladner, A. LaMarca, ACM Transactions on Modeling and Simulation 10:3, 2000.

Group Testing for Image Compression

E.S. Hong, R.E. Ladner, IEEE Data Compression Conference, 2000.

Fast Nearest Neighbor Search of Entropy-Constrained Vector Quantization

M.H. Johnson, R.E. Ladner, E.A. Riskin, IEEE Transactions on Image Processing 9:8, 2000.

Progressive Transmission of Images using MAP Detection over Channels with Memory

B.S. Srinivas, R. Ladner, E.A. Riskin, M. Azizoglu, IEEE Transactions on Image Processing 8:4, 1999.

The Influence of Caches on the Performance of Sorting

A. LaMarca, R.E. Ladner, Journal of Algorithms 31, 1999.

Nearest Neighbor Search in Vector Quantization

K. Zatloukal, R.E. Ladner, M.H. Johnson, Workshop on Algorithm Engineering and Experimentation, 1999.

Generalized Multiple Description Coding through Unequal Error Correction

A.E. Mohr, E.A. Riskin, R. Ladner, 1999 International Conference on Image Processing 1, 1999.

Cache Performance Analysis of Traversals and Random Accesses

J.D. Fix, R.E. Ladner, Tenth Annual ACM-SIAM Symposium on Discrete Algorithms, 1999.

Multiresolution Banded Refinement to Accelerate Surface Reconstruction from Polygons

J.D. Fix, R.E. Ladner, Computational Geometry 13, 1999.

Graceful Degradation over Packet Erasure Channels through Forward Error Correction

A.E. Mohr, E.A. Riskin, R.E. Ladner, IEEE Data Compression Conference, 1999.

Sorting by Parallel Insertion on a One-Dimensional Sub-Bus Array

J.D. Fix, R.E. Ladner, IEEE Transactions on Computers 47:11, 1998.

Recovering from Bit Errors in Scalar-Quantized Discrete Wavelet Transformed Images

A.E. Mohr, E.A. Riskin, J. Goldschneider, R. Ladner, Proceedings of ICIP 1998, 1998.

Bit Allocation for Wavelet Image Compression and Uniform Bit Loss

A.E. Mohr, E.A. Riskin, R. Ladner, Proceedings of the 32th Annual Conference on Information Sciences and Systems, 1998.

Counting Protocols for Reliable End-to-End Transmission

R.E. Ladner, A. LaMarca, E. Tempero, Journal of Computer and System Sciences 56:1, 1998.

Multiresolution Banded Refinement to Accelerate Surface Reconstruction from Polygons

J.D. Fix, R.E. Ladner, Fourteenth Annual ACM Symposium on Computational Geometry, 1998.

The Influence of Caches on the Performance of Sorting

A. LaMarca, R.E. Ladner, Eighth Annual ACM-SIAM Symposium on Discrete Algorithms, 1997.

Morphological Restoration of Degraded Document Imagery for OCR and Retrieval

M.Y. Jaisimha, R. Ladner, E.A. Riskin, W. Stuetzle, IST/SPIE Symposium on Electronic Imaging, 1996.

Progressive Image Transmission with Error Concealment on a Lossy Packet Network

B.S. Srinivas, M. Azizoglu, E. Riskin, R. Ladner, International Conference on Acoustics, Speech and Signal Processing, 1996.

The Influence of Caches on the Performance of Heaps

A. LaMarca, R.E. Ladner, Journal of Experimental Algorithmics 1:4, 1996.

Fast Nearest Neighbor Search for ECVQ and other Modified Distorsion Measures by Comparing Boundary Distance

M.H. Johnson, R. Ladner, E.A. Riskin, IEEE International Conference on Image Processing, 1996.

Complexity of Sub-Bus Mesh Computations

A. Condon, R.E. Ladner, J. Lampe, R. Sinha, SIAM Journal on Computing 25:3, 1996.

Codebook Organization to Enhance Maximum A Posteriori Detection of Progressive Transmission of Vector Quantized Images over Noisy Channels

R.Y. Wang, E.A. Riskin, R. Ladner, IEEE Transactions on Image Processing 5:1, 1996.

Progressive Image Transmission on a Channel with Memory

B.S. Srinivas, E.A. Riskin, R. Ladner, M. Azioglu, Thirty-third Annual Allerton Conference on Communications, Control and Computing, 1995.

Symmetric K-Span Matching Problem

C.L. Cheung, R.E. Ladner, Journal of Undergraduate Research 2:2, 1995.

Recoverable Sequence Transmission Protocols.

E. Tempero, R. Ladner, Journal of the ACM 42:5, 1995.

Optimal One-Way Sorting on a One-Dimensional Sub-Bus Array

J.D. Fix, R.E. Ladner, Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, 1995.

Interactive Proof Systems with Polynomial Bounded Strategies

A. Condon, R. Ladner, Journal of Computer and Systems Sciences 50, 1995.

Theory and Practice of Vector Quantizers Trained on Small Training Sets

D. Cohn, E.A. Riskin, R. Ladner, IEEE Transactions on Pattern Analysis and Machine Intelligence 16, 1994.

Optimizing Static Calendar Queues

K.B. Erickson, R.E. Ladner, A. LaMarca, 35th Annual Symposium on Foundations of Computer Science, 1994.

Index Assignment for Progressive Transmission of Full Search Vector Quantization. Correspondence

E.A. Riskin, R. Ladner, R.Y. Wang, L.E. Atlas, IEEE Transactions on Image Processing 3:3, 1994.

Improving Generalization with Self-Directed Learning

L. D. Cohn, L. Atlas, R. Ladner, Machine Learning 15, 1994.

Vector Prefix Addition on Sub-Bus Mesh Computers

R.E. Ladner, J. Lampe, R. Rogers, 5th Annual ACM Symposium on Parallel Algorithms and Architectures, 1993.

Index Assignment for Progressive Transmission of Full Search Vector Quantization

E.A. Riskin, R. Ladner, L.E. Atlas, R.Y. Wang, IEEE 1993 International Symposium on Information Theory, 1993.

Theory and Practice of Vector Quantizers Trained on Small Training Sets

D. Cohn, E.A. Riskin, R. Ladner, IEEE 1993 International Symposium on Information Theory, 1993.

The Complexity of Computing Symmetric Functions Using Threshold Circuits

P. Beame, E. Brisson, R.E. Ladner, Theoretical Computer Science 100, 1992.

Parallel Algorithms for Computational Biology (Extended Abstract)

J. Felsenstein, R. Ladner, J. Lampe, T. Nguyen, Data Parallel Research Initiative Symposium sponsored by Digital Equipment Corporation, 1992.

Interactive Proof Systems with Polynomial Bounded Strategies

A. Condon, R. Ladner, IEEE Conference on Structure in Complexity Theory, 1992.

Safety and Liveness of $\omega$-Context-Free Languages

S. Chaudhuri, R.E. Ladner, Information Processing Letters 37, 1991.

Tight Bounds for Weakly-Bounded Protocols

E. Tempero, R.E. Ladner, Ninth Annual ACM Symposium on Principles of Distributed Computing, 1990.

Computer Accessibility for Federal Workers with Disabilities: It's the Law

R.E. Ladner, Communications of the ACM 32:8, 1989.

Training Connectionist Networks with Queries and Selective Sampling

D. Cohn, L. Atlas, R. Ladner, M.R. II, M. El-Sharkawi, M. Aggoune, D. Park, Advances in Neural Information Processing, 1989.

Polynomial Space Counting Problems

R.E. Ladner, SIAM Journal on Computing 18, 1989.

Probabilistic Game Automata

A. Condon, R.E. Ladner, Journal of Computer and System Sciences 36:3, 1988.

Computer Accessibility for Workers with Disabilities: It's the Law

R.E. Ladner, Directions and Implications of Advanced Computing, 1988.

Estimating the Multiplicities of Conflicts to Speed Their Resolution in Multiple Access Channels

A.G. Greenberg, P. Flajolet, R.E. Ladner, Journal of the ACM 34:2, 1987.

DBNet - A Computer Network for Deaf-Blind People

R. Ladner, Computer Technology/Special Education/Rehabilitation, 1987.

A User Interface for Deaf-Blind People (Preliminary Report)

R. Ladner, R. Day, D. Gentry, K. Meyer, S. Rose, Conference on Human Factors in Computing and Graphics Interface, 1987.

The Logic of Distributed Protocols

R.E. Ladner, J. Reif, Theoretical Aspects of Reasoning about Knowledge 1986 Conference, 1986.

Probabilistic Game Automata

A. Condon, R. Ladner, Structure in Complexity Theory, Conference held at the University of California, 1986.

Solitaire Automata

R.E. Ladner, J.K. Norman, Journal of Computer and System Sciences 31:1, 1985.

DBNet - A Computer Network for Deaf-Blind People

R.E. Ladner, 10th University Study Conference (Sponsored by IBM), 1985.

Networks for Deaf-Blind People

R.E. Ladner, B.J. Wagreich, Spring COMPCON '84, 1984.

Signsolvability Revisited

V. Klee, R.E. Ladner, R. Manber, Linear Algebra and Its Applications 59, 1984.

Concurrency Control in a Dynamic Search Structure

U. Manber, R.E. Ladner, ACM Transactions on Database Systems 9:3, 1984.

Alternating Pushdown and Stack Automata

R.E. Ladner, R.J. Lipton, L.J. Stockmeyer, SIAM Journal on Computing 13:1, 1984.

A Large Font Virtual Terminal Interface - A Software Prosthesis for the Visually Impaired

E.P. Glinert, R.E. Ladner, Communications of the ACM 27:6, 1984.

Estimating the Multiplicities of Conflicts in Multiple Access Channels (Preliminary Report)

A.G. Greenberg, R.E. Ladner, Proceedings of the 24th IEEE Symposium on Foundations of Computer Science, 1983.

Binary Search in a Multiprocessing Environment

J.L. Baer, H.C. Du, R.E. Ladner, IEEE Transactions on Computers c-32:7, 1983.

Efficient Parallel Algorithms for Linear Recurrence Computation

A.G. Greenberg, R.E. Ladner, M.S. Paterson, Z. Galil, Information Processing Letters 15:1, 1982.

Concurrency Control in a Dynamic Search Structure

U. Manber, R.E. Ladner, ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, 1982.

Qualitative Matrices: Strong Sign-solvability and Weak Satisfiability

V. Klee, R.E. Ladner, H.J. Greenberg (Editor), J.S. Maybee (Editor), Computer-Assisted Analysis and Model Simplification, Academic Press, 1981.

The Complexity of Problems in Systems of Communicating Sequential Processes

R.E. Ladner, Journal of Computer and System Sciences 21:2, 1980.

Testing the Universal Instance Assumption

P. Honeyman, R.E. Ladner, M. Yannakakis, Information Processing Letters 10:1, 1980.

Complexity Theory with Emphasis on the Complexity of Logical Theories

R.E. Ladner, Proceedings of Logic Colloquium '79, 1980.

Parallel Prefix Computation

R.E. Ladner, M.J. Fischer, Journal of the ACM 27:4, 1980.

The Complexity of Problems in Systems of Communicating Sequential Processes

R.E. Ladner, Eleventh Annual ACM Symposium on Theory of Computing, 1979.

Propositional Dynamic Logic of Regular Programs

M.J. Fischer, R.E. Ladner, Journal of Computer and System Sciences 18:2, 1979.

Alternating Pushdown Automata

R.E. Ladner, R.J. Lipton, L.J. Stockmeyer, Nineteenth Annual Symposium on Foundations of Computer Science, 1978.

The Computational Complexity of Provability in Systems of Modal Propositional Logic

R.E. Ladner, SIAM Journal on Computing 6:3, 1977.

Straight-line Programs to Compute Finite Languages

G.B. Goodrich, R.E. Ladner, M.J. Fischer, Conference on Theoretical Computer Science, 1977.

Application of Model Theoretic Games to Discrete Linear Orders and Finite Automata

R.E. Ladner, Information and Control 33:4, 1977.

Parallel Prefix Computation

R.E. Ladner, M.J. Fischer, International Conference on Parallel Processing, 1977.

Propositional Modal Logic of Programs: Extended Abstract

M.J. Fischer, R.E. Ladner, Ninth Annual ACM Symposium on Theory of Computing, 1977.

Relativization of Questions about Log Space Computability

R.E. Ladner, N.A. Lynch, Mathematical Systems Theory 10:1, 1976.

Space Bounds for Processing Contentless Inputs

A.R. Freedman, R.E. Ladner, Journal of Computer and System Sciences 11:1, 1975.

The Weak Truth Table Degrees of Recursively Enumerable Sets

R.E. Ladner, L.P. Sasso, Annals of Mathematical Logic 8, 1975.

On the Structure of Polynomial Time Reducibility

R.E. Ladner, Journal of the ACM 22:1, 1975.

The Circuit Value Problem is Log Space Complete

R.E. Ladner, SIGACT NEWS 7:1, 1975.

A Comparison of Polynomial Time Reducibilities

R.E. Ladner, N.A. Lynch, A.L. Selman, Theoretical Computer Science 1, 1975.

Comparison of Polynomial-time Reducibilities

R.E. Ladner, N.A. Lynch, A.R. Selman, Sixth Annual ACM Symposium on Theory of Computing , 1974.

Polynomial Time Reducibility

R.E. Ladner, Fifth Annual ACM Symposium on Theory of Computing, 1973.

Mitotic Recursively Enumerable Sets

R.E. Ladner, Journal of Symbolic Logic 38:2, 1973.

A Completely Mitotic Nonrecursive R.E. Degree

R.E. Ladner, Transactions of the AMS 184, 1973.