Conference Proceedings
KnuckleGuide: Mid-Air Haptic Guidance System Targeting Dorsal Hand Using Airborne UltrasoundQirong Zhu, Xiwen Yao, Ruoting Sun, Kotaro Hara, Yang Jiao Proceedings of IEEE World Haptics Conference 2025
“I can run at night!": Using Augmented Reality to Support Nighttime Guided Running for Low-vision RunnersYuki Abe, Keisuke Matsushima, Kotaro Hara, Daisuke Sakamoto, and Tetsuo Ono Proceedings of CHI 2025, Yokohama, Japan. Honorable Mention Award
Audio Description CustomizationRosiana Natalie, Ruei-Che Chang, Smitha Sheshadri, Anhong Guo, and Kotaro Hara Proceedings of ASSETS 2024, St. John's, Newfoundland and Labrador, Canada
How People Prompt to Create Interactive VR ScenesSetareh Aghel Manesh, Tianyi Zhang, Yuki Onishi, Kotaro Hara, Scott Bateman, Jiannan Li, and Anthony Tang Proceedings of DIS 2024, Copenhagen, Denmark.
Navigating Real-World Challenges: A Quadruped Robot Guiding System for Visually Impaired People in Diverse EnvironmentsShaojun Cai, Ashwin Ram, Zhengtai Gou, Mohd Alqama Wasim Shaikh, Yu-An Chen, Yingjia Wan, Kotaro Hara, Shengdong Zhao, and David Hsu Proceedings of CHI 2024, Hawaii, USA. Honorable Mention Award
SwapVid: Integrating Video Viewing and Document Exploration with Direct ManipulationTaichi Murakami, Kazuyuki Fujita, Kotaro Hara, Kazuki Takashima, and Yoshifumi Kitamura Proceedings of CHI 2024, Hawaii, USA
Supporting Novices Author Audio Descriptions via Automatic FeedbackRosiana Natalie, Joshua Tseng, Hernisa Kacorri, and Kotaro Hara Proceedings of CHI 2023, Hamburg, Germany
The Efficacy of Collaborative Authoring of Video Scene DescriptionsRosiana Natalie, Jolene Loh, Huei Suen Tan, Joshua Tseng, Ian Luke Yi-Ren Chan, Ebrima H. Jarjue, Hernisa Kacorri, and Kotaro Hara Proceedings of ASSETS 2021, Online Conference, Best Paper Nomination
LiveSnippets: Voice-based Live Authoring of Multimedia Articles about ExperiencesHyeongcheol Kim, Shengdong Zhao, Can Liu, and Kotaro Hara Proceedings of MobileHCI 2020, Online Conference
Project Sidewalk: A Web Based Crowdsourcing Tool for Collecting Sidewalk Accessibility Data at ScaleManaswi Saha, Michael Saugstad, Hanuma Teja Maddali, Aileen Zeng, Ryan Holland, Steven Bower, Aditya Dash, Sage Chen, Anthony Li, Kotaro Hara, and Jon Froehlich Proceedings of CHI 2019, Glasgow, U.K. Best Paper Award
Striving to Earn More: A Survey of Work Strategies and Tool Use Among Crowd WorkersToni Kaplan, Susumu Saito, Kotaro Hara, and Jeffrey P. Bigham Proceedings of HCOMP 2018, Zurich, Switzerland
A Data-Driven Analysis of Workers' Earnings on Amazon Mechanical TurkKotaro Hara, Abigail Adams, Kristy Milland, Saiph Savage, Chris Callison-Burch, and Jeffrey P. Bigham Proceedings of CHI 2018, Montreal, QC, Canada. Honourable Mention Award
Vocal Programming for People with Upper-Body Motor ImpairmentsLucas Rosenblatt, Patrick Carrington, Kotaro Hara, Jeffrey P. Bigham Proceedings of W4A 2018, Lyon, France
Introducing People with ASD to Crowd WorkKotaro Hara and Jeffrey P. Bigham Proceedings of ASSETS 2017, Baltimore, USA.
The Crowd Work Accessibility ProblemSaiganesh Swaminathan, Kotaro Hara, Jeffrey P. Bigham Proceedings of W4A 2017, Perth, Australia, Best Paper Nomination
The Design of Assistive Location-based Technologies for People with Ambulatory Disabilities: A Formative StudyKotaro Hara, Christine Chan, Jon E. Froehlich Proceedings of CHI 2016, San Jose, USA.
Effect of Machine Translation in Interlingual Conversation: Lessons from a Formative StudyKotaro Hara and Shamsi T. Iqbal Proceedings of CHI 2015, Seoul, Korea.
Tohme: Detecting Curb Ramps in Google Street View Using Crowdsourcing, Computer Vision, and Machine LearningKotaro Hara, Jin Sun, Robert Moore, David Jacobs, Jon E. Froehlich Proceedings of UIST 2014, ACM CR Best of Computing
Improving Public Transit Accessibility for Blind Riders by Crowdsourcing Bus Stop Landmark Locations with Google Street ViewKotaro Hara, Shiri Azenkot, Megan Campbell, Cynthia L. Bennett, Vicki Le, Sean Pannella, Robert Moore, Kelly Minckler, Rochelle H. Ng, Jon E. Froehlich Proceedings of ASSETS 2013, Bellevue, Washington. Best Paper Award
Combining Crowdsourcing and Google Street View to Identify Street-level Accessibility ProblemsKotaro Hara, Victoria Le, Jon E. Froehlich Proceedings of CHI 2013, Paris, France, Apr 24-May 2, 2013.
Journal Papers
Conversational Localization: Indoor Human Localization through Intelligent ConversationSmitha Sheshadri and Kotaro Hara Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Volume 7, Issue 4, Article No.: 176, pp 1-32
The Gender Wage Gap in an Online Labor Market: The Cost of InterruptionsAbi Adams-Prassl, Kotaro Hara, Kristy Milland, Chris Callison-Burch The Review of Economics and Statistics 1–23.
Commanding and Re-dictation: Developing Eyes-free Voice-based Interaction for Editing Dictated TextDebjyoti Ghosh, Can Liu, Shengdong Zhao, and Kotaro Hara ACM Transactions on Computer-Human Interaction, Volume 27, Issue 4, August 2020 Article No.: 28, pp 1–31
Improving Public Transit Accessibility for Blind Riders by Crowdsourcing Bus Stop Landmark Locations with Google Street View: An Extended AnalysisKotaro Hara, Shiri Azenkoto, Megan Campbell, Cynthia L. Bennett, Vicki Le, Sean Pannella, Robert Moor, Kelly Minckler, Rochelle H. Ng, Jon E. Froehlich ACM Transactions on Accessible Computing, Volume 6, Issue 2, March 2015, Article No.: 5, pp 1–23
Poster Proceedings
Tactile Data Comics: A Step-by-step Multimodal Presentation Method on a Refreshable Tactile Display for Blind and Visually Impaired IndividualsRuoting Sun, Rong Luo, Xiwen Yao, Xinran She, Kotaro Hara, Yang Jiao Poster Proceedings of CHI 2025, Yokohama, Japan
Exploring Auditory Hand Guidance for Eyes-free 3D Path TracingYuki Abe, Kotaro Hara, Daisuke Sakamoto, Tetsuo Ono Poster Proceedings of CHI 2025, Yokohama, Japan
SPASCA: Social Presence and Support with Conversational Agent for Persons Living with DementiaAli Köksal, Jingjing Gu, Kotaro Hara, Jing Jiang, Joo-Hwee Lim, Qianli Xu Demonstration Track, Proceedings of the AAAI Conference on Artificial Intelligence, Pennsylvania, USA
Exploring Conversations between a Practitioner and a Person with DementiaKotaro Hara, Rosiana Natalie, Wei Soon Cheong, Jingjing Gu, and Qianli Xu Poster Proceedings of ASSETS 2024, St. John’s, Canada
Beyond Anthropomorphism: Unraveling the True Priorities of Chatbot Usage in SMEsTamas Makany, Sungjong Roh, Kotaro Hara, Jie Min Hua, Felicia Goh Si Ying, and Wilson Teh Poster Proceedings of CUI 2023, Eindhoven, The Netherlands
Investigating Accessibility Challenges and Opportunities for Users with Low Vision Disabilities in Customer-to-Customer (C2C) MarketplacesBektur Ryskeldiev, Kotaro Hara, Mariko Kobayashi, and Koki Kusano Poster Proceedings of ASSETS 2022, Athens, Greece
Feasibility Studies in Indoor Localization through Intelligent ConversationSmitha Sheshadri, Linus Cheng, and Kotaro Hara Poster Proceedings of CHI 2022, New Orleans, USA
Understanding Crowdsourcing Requesters’ Wage Setting BehaviorsKotaro Hara and Yudai Tanaka Poster Proceedings of CHI 2022, New Orleans, USA
Visionary Caption: Improving the Accessibility of Presentation Slides Through Highlighting VisualizationCarmen Yip, Jie Mi Chong, Sin Yee Kwek, Wang Yong, and Kotaro Hara Poster Proceedings of ASSETS 2021, Online Event
Uncovering Patterns in Reviewers’ Feedback to Scene Description AuthorsRosiana Natalie, Jolene Loh Kar Inn, Tan Huei Suen, Joshua Tseng Shi Hao, Hernisa Kacorri, Kotaro Hara Poster Proceedings of ASSETS 2021, Online Event
ViScene: A Collaborative Authoring Tool for Scene Descriptions in VideosRosiana Natalie, Ebrima Jarjue, Hernisa Kacorri, and Kotaro Hara Poster Proceedings of ASSETS 2020, Online Event
Techniques to Visualize Occluded Graph Elements for 2.5D Map EditingKazuyuki Fujita, Daigo Hayashi, Kotaro Hara, Kazuki Takashima, and Yoshifumi Kitamura Poster Proceedings of CHI 2020, Online Event
Worker Demographics and Earnings on Amazon Mechanical Turk: An Exploratory AnalysisHara, K., Adams, A. Milland, M., Savage S., Hanrahan, B.V., Bigham J.P., and Callison-Burch, C. Poster Proceedings of CHI 2019, Glasgow, Scotland, UK.
A Pilot Deployment of an Online Tool for Large-Scale Virtual Auditing of Urban AccessibilityManaswi Saha, Kotaro Hara, Soheil Behnezhad, Anthony Li, Michael Saugstad, Hanuma Maddali, Sage Chen, Jon E. Froehlich Poster Proceedings of ASSETS 2017, Baltimore, USA.
FluTCHA: Using Fluency to Distinguish Humans from ComputersKotaro Hara, Mohammad T. Hajiaghayi, Benjamin B. Bederson Poster Proceedings of WWW 2015, Florence, Italy
Low Effort Crowdsourcing: Leveraging Peripheral Attention for Crowd WorkVaish Rajan, Peter Organisciak, Kotaro Hara, Jeffrey P. Bigham, and Haoqi Zhang Poster Proceedings of HCOMP 2014
An Initial Study of Automatic Curb Ramp Detection with Crowdsourced Verification using Google Street View ImagesKotaro Hara, Jin Sun, Jonah Chazan, David Jacobs, Jon E. Froehlich Poster Proceedings of HCOMP 2013, Palm Springs, California, USA.
A Feasibility Study of Crowdsourcing and Google Street View to Determine Sidewalk AccessibilityKotaro Hara, Victoria Le, and Jon Froehlich Poster Proceedings of ASSETS 2012, Boulder, Colorado, USA.
Other Articles
Grand Challenges in Accessible MapsJon E. Froehlich, Anke M. Brock, Anat Caspi, João Guerreiro, Kotaro Hara, Reuben Kirkham, Johannes Schöning, and Benjamin Tannert Interactions, 2019
Characterizing and Visualizing Physical World Accessibility at Scale Using Crowdsourcing, Computer Vision, and Machine LearningKotaro Hara and Jon E. Froehlich SIGACCESS Newsletter, Issue 113. 2015
Scalable Methods to Collect and Visualize Sidewalk Accessibility Data for People with Mobility ImpairmentsKotaro Hara Doctoral Consortium of ASSETS 2014
Scalable Methods to Collect and Visualize Sidewalk Accessibility Data for People with Mobility ImpairmentsKotaro Hara Doctoral Symposium of UIST 2014
Exploring Early Solutions for Automatically Identifying Inaccessible Sidewalks in the Physical World using Google Street ViewKotaro Hara Human Computer Interaction Consortium 2013, Pacific Grove, California, USA. June 22-27, 2013.
Dissertation
Scalable Methods to Collect and Visualize Sidewalk Accessibility Data for People with Mobility ImpairmentsKotaro Hara University of Maryland Doctoral Dissertation