Dan Morris
About the author:
No description available of Dan Morris...
Publications by Dan Morris (bibliography)
» 2009 «
Fiebrink, Rebecca, Morris, Dan and Morris, Meredith Ringel (2009): Dynamic mapping of physical controls for tabletop groupware. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 471-480. Available online
“Multi-touch interactions are a promising means of control for interactive tabletops. However, a lack of precision and tactile feedback makes multi-touch controls a poor fit for tasks where precision and feedback are crucial. We present an approach that offers precise control and tactile feedback for tabletop systems through the integration of dynamically re-mappable physical controllers with the multi-touch environment, and we demonstrate this approach in our collaborative tabletop audio editing environment. An observational user study demonstrates that our approach can provide needed precision and feedback, while preserving the collaborative benefits of a shared direct-manipulation surface. Our observations also suggest that direct touch and physical controllers can offer complementary benefits, and that providing both allows users to adjust their control strategy based on considerations including precision, convenience, visibility, and user role.”
Copyrights may apply
Morris, Dan and Secretan, Jimmy (2009): Computational creativity support: using algorithms and machine learning to help people be more creative. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 4733-4736. Available online
“The emergence of computers as a core component of creative processes, coupled with recent advances in machine-learning, signal-processing, and algorithmic techniques for manipulating creative media, offers tremendous potential for building end-user creativity-support tools. However, the scientific community making advances in relevant algorithmic techniques is not, in many cases, the same community that is currently making advances in the design, evaluation, and user-experience aspects of creativity support. The primary objective of this workshop is thus to bring together participants from diverse backgrounds in the HCI, design, art, machine-learning, and algorithms communities to facilitate the advancement of novel creativity support tools.”
Copyrights may apply
Grimes, Andrea, Tan, Desney and Morris, Dan (2009): Toward technologies that support family reflections on health. In: GROUP09 - International Conference on Supporting Group Work 2009. pp. 311-320. Available online
“Previous research has explored how technology can motivate healthy living in social groups such as friends and coworkers. However, little research has focused on the implications of collecting, sharing, and reflecting upon health information within families. To explore this domain, we conducted a study that consisted of a week-long journaling activity followed by semi-structured interviews and formative design activities with 15 families (66 people). We identified four areas in which these practices are unique in a family context. Based on these findings we propose preliminary considerations for technologies that effectively support family reflections on health data.”
Copyrights may apply
Nichols, Eric, Morris, Dan and Basu, Sumit (2009): Data-driven exploration of musical chord sequences. In: Proceedings of the 2009 International Conference on Intelligent User Interfaces 2009. pp. 227-236. Available online
“We present data-driven methods for supporting musical creativity by capturing the statistics of a musical database. Specifically, we introduce a system that supports users in exploring the high-dimensional space of musical chord sequences by parameterizing the variation among chord sequences in popular music. We provide a novel user interface that exposes these learned parameters as control axes, and we propose two automatic approaches for defining these axes. One approach is based on a novel clustering procedure, the other on principal components analysis. A user study compares our approaches for defining control axes both to each other and to an approach based on manually-assigned genre labels. Results show that our automatic methods for defining control axes provide a subjectively better user experience than axes based on manual genre labeling.”
Copyrights may apply
» 2008 «
Saponas, T. Scott, Tan, Desney S., Morris, Dan and Balakrishnan, Ravin (2008): Demonstrating the feasibility of using forearm electromyography for muscle-computer interfaces. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 515-524. Available online
“We explore the feasibility of muscle-computer interfaces (muCIs): an interaction methodology that directly senses and decodes human muscular activity rather than relying on physical device actuation or user actions that are externally visible or audible. As a first step towards realizing the mu-CI concept, we conducted an experiment to explore the potential of exploiting muscular sensing and processing technologies for muCIs. We present results demonstrating accurate gesture classification with an off-the-shelf electromyography (EMG) device. Specifically, using 10 sensors worn in a narrow band around the upper forearm, we were able to differentiate position and pressure of finger presses, as well as classify tapping and lifting gestures across all five fingers. We conclude with discussion of the implications of our results for future muCI designs.”
Copyrights may apply
Simon, Ian, Morris, Dan and Basu, Sumit (2008): MySong: automatic accompaniment generation for vocal melodies. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 725-734. Available online
“We introduce MySong, a system that automatically chooses chords to accompany a vocal melody. A user with no musical experience can create a song with instrumental accompaniment just by singing into a microphone, and can experiment with different styles and chord patterns using interactions designed to be intuitive to non-musicians. We describe the implementation of MySong, which trains a Hidden Markov Model using a music database and uses that model to select chords for new melodies. Model parameters are intuitively exposed to the user. We present results from a study demonstrating that chords assigned to melodies using MySong and chords assigned manually by musicians receive similar subjective ratings. We then present results from a second study showing that thirteen users with no background in music theory are able to rapidly create musical accompaniments using MySong, and that these accompaniments are rated positively by evaluators.”
Copyrights may apply
Morris, Dan, Morris, Meredith Ringel and Venolia, Gina (2008): SearchBar: a search-centric web history for task resumption and information re-finding. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 1207-1216. Available online
“Current user interfaces for Web search, including browsers and search engine sites, typically treat search as a transient activity. However, people often conduct complex, multi-query investigations that may span long durations and may be interrupted by other tasks. In this paper, we first present the results of a survey of users' search habits, which show that many search tasks span long periods of time. We then introduce SearchBar, a system for proactively and persistently storing query histories, browsing histories, and users' notes and ratings in an interrelated fashion. SearchBar supports multi-session investigations by assisting with task context resumption and information re-finding. We describe a user study comparing use of SearchBar to status-quo tools such as browser histories, and discuss our findings, which show that users find SearchBar valuable for task reacquisition. Our study also reveals the strategies employed by users of status-quo tools for handling multi-query, multi-session search tasks.”
Copyrights may apply
Morris, Dan, Brush, A. J. Bernheim and Meyers, Brian R. (2008): SuperBreak: using interactivity to enhance ergonomic typing breaks. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 1817-1826. Available online
“Repetitive strain injuries and ergonomics concerns have become increasingly significant health issues as a growing number of individuals frequently use computers for long periods of time. Currently, limited software mechanisms exist for managing ergonomics; the most well-known are "break-reminder" packages that schedule and recommend typing breaks. Yet despite the proven benefits of taking breaks, such packages are rarely adopted due to the over-head of introducing periodic interruptions into a user's workflow. In this paper, we describe SuperBreak, a break-reminder package that provides hands-free interactions during breaks, with the goal of encouraging users to take more breaks and enhancing the benefits of those breaks. In a field study of 26 knowledge workers, 85% preferred SuperBreak over a traditional break-reminder system, and on average participants took a higher percentage of the interactive breaks suggested to them. Our results highlight the value of interactivity for improving the adoption and retention of ergonomic break practices.”
Copyrights may apply
» 2007 «
White, Ryen W. and Morris, Dan (2007): Investigating the querying and browsing behavior of advanced search engine users. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2007. pp. 255-262. Available online
“One way to help all users of commercial Web search engines be more successful in their searches is to better understand what those users with greater search expertise are doing, and use this knowledge to benefit everyone. In this paper we study the interaction logs of advanced search engine users (and those not so advanced) to better understand how these user groups search. The results show that there are marked differences in the queries, result clicks, post-query browsing, and search success of users we classify as advanced (based on their use of query operators), relative to those classified as non-advanced. Our findings have implications for how advanced users should be supported during their searches, and how their interactions could be used to help searchers of all experience levels find more relevant information and learn improved searching strategies.”
Copyrights may apply
» 2006 «
Ruffaldi, Emanuele, Morris, Dan, Edmunds, Timothy, Barbagli, Federico and Pai, Dinesh K. (2006): Standardized Evaluation of Haptic Rendering Systems. In: HAPTICS 2006 - 14th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems 25-26 March, 2006, Arlington, VA, USA. p. 33. Available online
» 2004 «
Morris, Meredith Ringel, Morris, Dan and Winograd, Terry (2004): Individual audio channels with single display groupware: effects on communication and task strategy. In: Proceedings of ACM CSCW04 Conference on Computer-Supported Cooperative Work 2004. pp. 242-251. Available online
“We introduce a system that allows four users to each receive sound from a private audio channel while using a shared tabletop display. In order to explore how private audio channels affect a collaborative work environment, we conducted a user study with this system. The results reveal differences in work strategies when groups are presented with individual versus public audio, and suggest that the use of private audio does not impede group communication and may positively impact group dynamics. We discuss the findings, as well as their implications for the design of future audio-based "single display privacyware" systems.”
Copyrights may apply
SHOW THIS LIST ON YOUR HOMEPAGE
What do YOU think?
Give us your opinion! Do you have any comments/additions that you would like other visitors to see?
You say:
Mar 16th, 2010
Changes to this page (author)
16 Feb 2010: Enabled abstracts to be shown on Dan Morris's author page.12 Jun 2009: Author was edited 02 Jun 2009: Author was edited
02 Jun 2009: Author was edited
09 May 2009: Author was edited
09 May 2009: Author was edited
12 May 2008: Author was edited
12 May 2008: Author was edited
12 May 2008: Author was edited
12 May 2008: Author was edited
12 May 2008: Author was edited
22 Jun 2007: Author was edited
22 Jun 2007: Author was added to the bibliography
