Posts Tagged ‘paper published’

Collapse Informatics and Practice: Theory, Method, and Design - November 16th, 2012

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Congratulations to Informatics faculty and researchers, Bill Tomlinson, Bonnie Nardi, Don Patterson and Six Silberman on having their paper, “Collapse Informatics and Practice: Theory, Method, and Design” accepted to a special issue of ToCHI focussed on ‘Sustainable HCI through Everyday Practices’

“What happens if efforts to achieve sustainability fail? Research in many fields argues that contemporary global industrial civilization will not persist indefinitely in its current form, and may, like many past human societies, eventually collapse. Arguments in environmental studies, anthropology, and other fields indicate that this transformation could begin within the next half-century. While imminent collapse is far from certain, it is prudent to consider now how to develop sociotechnical systems for use in these scenarios. We introduce the notion of collapse informatics—the study, design, and development of sociotechnical systems in the abundant present for use in a future of scarcity. We sketch the design space of collapse informatics and a variety of example projects. We ask how notions of practice—theorized as collective activity in the “here and now”—can shift to the future since collapse has yet to occur. ”

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Posted: 11/16/12 6:33 pm UTC by Make the First Comment
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The effects of EMR deployment on doctors’ work practices - February 13th, 2012

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Congratulations to grad students Sun Young Park, So Young Lee and LUCI faculty Yunan Chen on having their paper titled, “The effects of EMR deployment on doctors’ work practices: A qualitative study in the emergency department of a teaching hospital” accepted to The International Journal of Medical Informatics!

Results: The use of the EMR in the ED resulted in both direct and indirect effects on ED doctors’ work practices. It directly influenced the ED doctors’ documentation process: (i) increasing documentation time four to five fold, which in turn significantly increased the number of incomplete charts, (ii) obscuring the distinction between residents’ charting inputs and those of attendings, shifting more documentation responsibilities to the residents, and (iii) leading to the use of paper notes as documentation aids to transfer information from the patient bedside to the charting room. EMR use also had indirect consequences: it increased the cognitive burden of doctors, since they had to remember multiple patients’ data; it aggravated doctors’ multi-tasking due to flexibility in the system use allowing more interruptions; and it caused ED doctors’ work to become largely stationary in the charting room, which further contributed to reducing doctors’ time with patients and their interaction with nurses.

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Posted: 2/13/12 9:52 pm UTC by Make the First Comment
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Designing Online Games for Real-life Relationships - February 7th, 2012

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Congratulations to former grad student Yong Ming Kow, and LUCI faculty Yunan Chen on having their paper titled, “Designing Online Games for Real-life Relationships: Examining QQ Farm in Intergenerational Play” accepted to CSCW 2012!

Abstract: Intergenerational players are online game players of different generations within an extended family. We investigated intergenerational play between older parents and their adult children in the popular Chinese social networking game QQ Farm. We identified game features that encourage intergenerational play. To do this, we conducted online observations and semi-structured interviews with nine pairs of Chinese parents and their adult children. The results of this study suggest that an online game for intergenerational play needs to consider a range of factors, including social and occupational responsibilities, gaming interests, and gaming expertise among extended family members. The data suggests that intergenerational online games may generally benefit from the following features: (1) low entry barrier, (2) appealing game theme, (3) online interactions that extend real-life relationships, (4) low time commitment, and (5) asynchronous play. We have also found features which may have unique appeal to Chinese intergenerational gamers.

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Posted: 2/7/12 4:52 pm UTC by Make the First Comment
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Loosely Formed Patient Care Teams - February 6th, 2012

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Congratulations to grad students Soyoung Lee, Sun Young Park, and LUCI faculty Yunan Chen on having their paper titled, “Loosely Formed Patient Care Teams: Communication Challenges and Technology Design” accepted to CSCW 2012!

Abstract: We conducted an observational study to investigate nurses’ communication behaviors in an Emergency Department (ED). Our observations reveal unique collaboration practices exercised by ED staff, which we term as “loosely formed team collaboration.” Specifically, ED patient care teams are dynamically and quickly assembled upon patient arrival, wherein team members engage in interdependent and complex care activities. The responsible care team then disassembles when a patient leaves the ED. The coordination mechanism required for these work practices challenges nurses’ communication processes, often increasing breakdown susceptibility. Our analysis of the ED nurses’ communication behaviors and use of communication channels highlights the importance of maintaining team awareness and supporting role-based communication. This points to the need for explicit efforts to coordinate tasks and informative interruptions. These findings call for the design of future communication technologies to meet the needs of loosely formed collaborative environments to provide team-based communication, lightweight feedback, and information transparency.

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Posted: 2/6/12 6:52 pm UTC by Make the First Comment
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Garnet’s OutRun project in Make: magazine - April 27th, 2011

Garnet’s OutRun project is features in a 4 page article in Make: Magazine.

Congrats Garnet!

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Posted: 4/27/11 10:00 pm UTC by Make the First Comment
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Bagging Gradient-Boosted Trees for High Precision, Low Variance Ranking Models - April 8th, 2011

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Congratulations to Informatics graduate student Yasser Ganjisaffar, Informatics faculty Crista Lopes and their collaborator Rich Caruana from Microsoft on having their paper,
‘Bagging Gradient-Boosted Trees for High Precision, Low Variance Ranking Models’ accepted to SIGIR 2011.

Abstract: Recent studies have shown that boosting provides excellent predictive performance across a wide variety of tasks. In Learning-to-rank, boosted models such as RankBoost and LambdaMART have been shown to be among the best performing learning methods based on evaluations on public data sets. In this paper, we show how the combination of bagging as a variance reduction technique and boosting as a bias reduction technique can result in very high precision and low variance ranking models. We perform thousands of parameter tuning experiments for LambdaMART to achieve a high precision boosting model. Then we show that a bagged ensemble of such LambdaMART boosted models results in higher accuracy ranking models while also reducing variance as much as 50%. We report our results on three public learning-to-rank data sets using four metrics. Bagged LamdbaMART outperforms all previously reported results on ten of the twelve comparisons, and bagged LambdaMART outperforms non-bagged LambdaMART on all twelve comparisons. For example, wrapping bagging around LambdaMART increases NDCG@1 from 0.4137 to 0.4200 on the MQ2007data set; the best prior results in the literature for this data set is 0.4134 by RankBoost.

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Posted: 4/8/11 6:40 pm UTC by Make the First Comment
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LUCI members get many papers accepted by CHI 2011 - January 27th, 2011

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The LUCI lab has had several papers accepted to CHI 2011. The list of accepted works was just released and includes the following by students, researchers, and faculty:

Full Papers:

Situating the Concern for Information Privacy through an Empirical Study of Responses to Video Recording by David Nguyen (LUCI Ph.D.), Aurora Bedford and Alex Bretana (Informatics undergrads) and Gillian R. Hayes (LUCI faculty)

Unpacking Exam-Room Computing: Negotiating Computer-Use in Patient-Physician Interactions by Yunan Chen (LUCI faculty), Victor Ngo and Sidney Harrison (Informatics Masters students) and Victoria Duong (UCI undergrad).

Comparing Activity Theory with Distributed Cognition for Video Analysis: Beyond “Kicking the Tires.” by Eric Baumer (former LUCI post-doc) and Bill Tomlinson (LUCI faculty)

Infrastructures for low-cost laptop use in Mexican schools
Ruy Cervantes (Informatics Ph.D.), Mark Warschauer (Ed. Dept.), Bonnie Nardi (LUCI Faculty), and Nithya Sambasivan (Informatics Ph.D.)

Designing a Phone Broadcasting System for Urban Sex Workers in India
Nithya Sambasivan (Informatics Ph.D.) and Ed Cutrell (Microsoft)

Classroom-Based Assistive Technology: Collective Use of Interactive Visual Schedules by Students with Autism
Meg Cramer (LUCI Ph.D.), Sen Hirano (LUCI M.S.), Monica Tentori (UABC), Michael Yeganyan (LUCI M.S.), and Gillian R. Hayes (LUCI Faculty)

Homebrew Databases: Complexities of Everyday Information Management in Nonprofit Organizations
Amy Voida (Informatics PostDoc), Ellie Harmon (LUCI Ph.D.), Ban Al-Ani (Informatics Faculty)

Why Do I Keep Interrupting Myself?: Environment, Habit and Self-Interruption
Laura Dabbish (CMU), Gloria Mark (Informatics Faculty), Victor Gonzalez, (ITAM)

Refraining from Technological Intervention by by Eric Baumer (former LUCI post-doc) and Six Silberman (former LUCI Ph.D. Student)

Congratulations
Alex, Aurora, Bill, David, Eric, Gillian, Sidney, Six, Victor, Yunan, Ruy, Bonnie, Nithya, Meg, Sen, Monica, Michael, Amy, Ellie, Ban, and Gloria!

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Posted: 1/27/11 7:36 pm UTC by Add Your Comment
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LUCI has 8 (!) papers accepted to CSCW - November 12th, 2010

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The LUCI lab will have a tremendous showing at CSCW 2011. The list of accepted works was just released and includes the following by grad students and faculty:

Full Papers:

“We will never forget you [online]”: An empirical investigation of post-mortem MySpace comments by Jed R. Brubaker (LUCI grad student), Gillian R. Hayes (LUCI faculty)

SELECT * FROM USER: Infrastructure and Socio-technical Representation by Jed R. Brubaker (LUCI grad student), Gillian R. Hayes (LUCI faculty)

Improving Communication and Social Support for Caregivers of High-Risk Infants through Mobile Technologies by Leslie S. Liu (LUCI grad student), Sen H. Hirano (LUCI grad student), Monica Tentori (LUCI post-doc), Karen G. Cheng (Charles Drew University of Medicine and Science), Sheba George (Charles Drew University of Medicine and Science), Sunyoung Park (LUCI grad student), Gillian R. Hayes (LUCI faculty)

The Values of Data: Considering the Context of Production in Data Economies by Janet Vertesi (Princeton University), Paul Dourish (LUCI faculty)

Social Mechanisms and Technological Affordances for Building Trust: ICT Use By Civilians in a Warzone by Bryan Semaan (Informatics grad student), Gloria Mark (Informatics faculty)

Notes:

Health Information Use in Chronic Care Cycles by Yunan Chen (LUCI faculty)

Forget Online Communities? Revisit Cooperative Work! by Yong Ming Kow (Informatics grad student), Bonnie Nardi (LUCI faculty)

What Do My Buddies Choose?: Informing Privacy Preferences with Social Navigation by Sameer Patil (former LUCI grad student), Xinru Page (Informatics grad student), Alfred Kobsa (Informatics faculty)

Congratulations
Jed, Gillian, Leslie, Sen, Monica Tentori, Karen, Sheba, Sunyoung, Bryan, Gloria, Yunan, Janet, Paul, Yong Ming, Bonnie, Sameer, Xinru and Alfred!

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Posted: 11/12/10 4:24 pm UTC by Add Your Comment
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Disability Studies as a Source of Critical Inquiry for the Field of Assistive Technology - October 28th, 2010

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Informatics faculty member Gillian Hayes and collaborators just received a SIGACCESS best paper award for a paper published in ASSETS 2010, the International ACM Conference on Conference on Computers and Accessibility, going on in Orlando, Florida. Their paper, “Disability Studies as a Source of Critical Inquiry for the Field of Assistive Technology” comes out of the research they’ve been doing on HCI for individuals with disabilities.

Abstract:
Disability studies and assistive technology are two related fields that have long shared common goals–understanding the experience of disability and identifying and addressing relevant issues. Despite these common goals, there are some important differences in what professionals in these fields consider problems, perhaps related to the lack of connection between the fields. To help bridge this gap, we review some of the key literature in disability studies. We present case studies of two research projects in assistive technology and discuss how the field of disability studies influenced that work, led us to identify new or different problems relevant to the field of assistive technology, and helped us to think in new ways about the research process and its impact on the experiences of individuals who live with disability. We also discuss how the field of disability studies has influenced our teaching and highlight some of the key publications and publication venues from which our community may want to draw more deeply in the future.

Congratulations Gillian!

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Posted: 10/28/10 12:57 am UTC by Make the First Comment
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Rhythms and plasticity: television temporality at home - September 30th, 2010

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Congratulations to Informatics grad student, Lilly Irani on having her paper, “Rhythms and plasticity: television temporality at home” , published in Personal and Ubiquitous Computing

Abstract:Digital technologies have enabled new temporalities of media consumption in the home. Through a field study of home television viewing practices, we investigated temporal orderings of television watching. In contrast to traditional pictures of television use, our evidence suggests that rhythms across households play an important role in shaping television watching. Further, we found a flexibility and openness within the patterns of television viewing that we refer to as “plasticity.” Our data suggest that plasticity and rhythms co-exist and together compose the qualitative experience of domestic television time; an understanding of both aspects of temporality suggests an approach for the design of future television technologies.

Congratulations Lilly!

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Posted: 9/30/10 11:24 pm UTC by Make the First Comment
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