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Algorithms and theory47205 (208)
Communication and collaboration47188 (177)
Computational linguistics47189 (143)
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Cecily Morrison, Neil Smyth, Robert Corish, Kenton O'Hara, and Abigail Sellen
Computer visions (CV) systems are increasingly finding new roles in domains such as healthcare. These collaborative settings are a new challenge for CV systems, requiring the design of appropriate interaction paradigms. The provision of feedback, particularly of what the CV system can “see,” is a key aspect, and may not always be possible to present visually. We explore the design space for audio feedback for a scenario of interest, the clinical assessment of Multiple Sclerosis using a CV system. We then...
Publication details
Date: 25 June 2014
Type: Article
Andrew Begel, Thomas Fritz, Sebastian Mueller, Serap Yigit-Elliott, and Manuela Zueger
Software developers make programming mistakes that cause serious bugs for their customers. Existing work to detect problematic software focuses mainly on post hoc identification of correlations between bug fixes and code. We propose a new approach to address this problem — detect when software developers are experiencing difficulty while they work on their programming tasks, and stop them before they can introduce bugs into the code. In this paper, we investigate a novel approach to classify the...
Publication details
Date: 4 June 2014
Type: Inproceeding
Publisher: International Conference on Software Engineering
Tawfiq Ammari, Meredith Ringel Morris, and Sarita Yardi Schoenebeck
Over 10 million children are diagnosed with a special need in the United States each year. For their parents, the economic and emotional costs can be overwhelming. Using a mixed methods approach, this research explores how social media supports parents of children with special needs. We find that parents prefer Facebook pages and groups and Yahoo! groups for seeking information and social support. These online sites offer geographic communities for local needs (e.g. school services) and case-based...
Publication details
Date: 1 June 2014
Type: Inproceeding
Publisher: AAAI
Ariel Schwartz, Mohini Bhavsar, Edward Cutrell, Jonathan Donner, and Melissa Densmore
Mobile devices are increasingly powerful and flexible tools for grassroots work. This document offers guidelines for thinking about your deployment, drawing attention to the latent project features that can influence the use of a device you issue for community level or frontline social service work.
Publication details
Date: 1 April 2014
Type: Technical report
Number: MSR-TR-2014-45
Munmun De Choudhury, Meredith Ringel Morris, and Ryen White
Search engines and social media are two of the most commonly used online services; in this paper, we examine how users appropriate these platforms for online health activities via both large-scale log analysis and a survey of 210 people. While users often turn to search engines to learn about serious or highly stigmatic conditions, a surprising amount of sensitive health information is also sought and shared via social media, in our case the public social plat-form Twitter. We contrast what health content...
Publication details
Date: 1 April 2014
Type: Inproceeding
Publisher: ACM
Florian 'Floyd' Mueller, Martin Gibbs, Frank Vetere, Stefan Agamanolis, and Darren Edge
Supporting physical exertion is a growing trend in digital technology design. However, most experiences focus on bodily actions in which participants act independently of each other. In contrast, we focus on virtual body-to-body interactions between multiple participants, inspired by combat-oriented sports such as boxing that highlight the need to act while avoiding reciprocal bodily action. Mediating such body-to-body interactions with technology is challenging, particularly when participants are not...
Publication details
Date: 1 February 2014
Type: Inproceeding
Publisher: ACM
Michael Massimi, Jackie L. Bender, Holly O. Witteman, and Osman H. Ahmed
Online health communities are places where people can come together in order to exchange social support at a particular point in an individual's life. There are, however, relatively few accounts that look across multiple communities across the lifespan. In this paper, we reflect on four case studies of research on different online health communities in order to identify patterns in how individuals selectively adopt, use, and disengage from these communities throughout their lives. We argue that users...
Publication details
Date: 1 January 2014
Type: Inproceeding
Publisher: ACM
Florian 'Floyd' Mueller, Martin R. Gibbs, Frank Vetere, and Darren Edge
Advances in sensing technologies have led to research into exertion games that support physically effortful experiences. Despite the existence of theoretical frameworks that can be used to analyze such exertion experiences, there are few tools to support the hands-on practice of exertion game design. To address this, we present a set of design cards based on the “Exertion Framework”, grounded in our experience of creating exertion games for over a decade. We present results demonstrating the value and...
Publication details
Date: 1 January 2014
Type: Inproceeding
Publisher: ACM
Anthony Gitter, Alfredo Braunstein, Andrea Pagnani, Carlo Baldassi, Christian Borgs, Jennifer Chayes, Riccardo Zecchina, and Ernest Fraenkel
Advances in experimental techniques resulted in abundant genomic, transcriptomic, epigenomic, and proteomic data that have the potential to reveal critical drivers of human diseases. Complementary algorithmic developments enable researchers to map these data onto protein-protein interaction networks and infer which signaling pathways are perturbed by a disease. Despite this progress, integrating data across different biological samples or patients remains a substantial challenge because samples from the...
Publication details
Date: 1 January 2014
Type: Article
Publisher: World Scientific Publishing
Niranjan Pai, Pradnya Supe, Shailesh Kore, Y.S. Nandanwar, Aparna Hegde, Edward Cutrell, and William Thies
For years, researchers have explored the use of mobile phone reminders to improve adherence to medication. However, few studies have measured the direct medical benefit of those reminders, especially for low-literate populations in the developing world. This paper describes the use of automated voice calls to promote adherence to iron supplements among pregnant women in urban India. Unlike prior studies, we assess impact via a direct measurement of hemoglobin (Hb) levels in the blood. We enrolled 130...
Publication details
Date: 1 December 2013
Type: Inproceeding
Publisher: ACM
Aiden Doherty, Wilby Williamson, Melvyn Hillsdon, Steve Hodges, Charlie Foster, and Paul Kelly
BACKGROUND: The growing global burden of noncommunicable diseases makes it important to monitor and influence a range of health-related behaviours such as diet and physical activity Wearable cameras appear to record and reveal many of these behaviours in more accessible ways. However, having determined opportunities for improvement, most health-related interventions fail to result in lasting changes. AIM: To assess the use of wearable cameras as part of a behaviour change strategy and consider ethical...
Publication details
Date: 1 November 2013
Type: Inproceeding
Publisher: ACM
Yan Xu, Yining Wang, Jian-Tao Sun, Jianwen Zhang, Junichi Tsujii, and Eric Chang
To build large collections of medical terms from semi-structured information sources (e.g. tables, lists, etc.) and encyclopedia sites on the web. The terms are classified into the three semantic categories, Medical Problems, Medications, and Medical Tests, which were used in i2b2 challenge tasks. We developed two systems, one for Chinese and another for English terms. The two systems share the same methodology and use the same software with minimum language dependent parts. We produced large collections...
Publication details
Date: 9 July 2013
Type: Article
Publisher: PLoS
Munmun De Choudhury, Scott Counts, Eric Horvitz, and Michael Gamon
Major depression constitutes a serious challenge in personal and public health. Tens of millions of people each year suf-fer from depression and only a fraction receives adequate treatment. We explore the potential to use social media to detect and diagnose major depressive disorder in individu-als. We first employ crowdsourcing to compile a set of Twitter users who report being diagnosed with clinical de-pression, based on a standard psychometric instrument. Through their social media postings over a year...
Publication details
Date: 1 July 2013
Type: Inproceeding
Publisher: AAAI
Richard Muscat, Karin Strauss, Luis Ceze, and Georg Seelig
Performing computation inside living cells offers life-changing applications, from improved medical diagnostics to better cancer therapy to intelligent drugs. Due to its bio-compatibility and ease of engineering, one promising approach for performing in-vivo computation is DNA strand displacement. This paper introduces computer architects to DNA strand displacement “circuits”, discusses associated architectural challenges, and proposes a new organization that provides practical composability. In...
Publication details
Date: 25 June 2013
Type: Inproceeding
Publisher: ACM
Munmun de Choudhury, Michael Gamon, Aaron Hoff, and Asta Roseway
We propose an early prototype: a web-based tool “Moon Phrases” that leverages an individual’s social activity online for promoting emotional reflection and wellness. Specifically, Moon Phrases tracks the emotion and linguistic expression of individuals as manifested on the social media Twitter, and presents a novel visualization—an analogy to the phases of the moon, to reveal their longitudinal trends. Social media platforms, including Twitter and Facebook provide a window onto the thoughts and feelings of...
Publication details
Date: 1 May 2013
Type: Inproceeding
Publisher: European Alliance for Innovation
Ted McCarthy, Joyojeet Pal, and Edward Cutrell
We present results from a mixed methods study of screen reader use and switching behavior among people with vision impairments in India. We examine loyalty and experimentation with screen readers and find that the main drivers of adoption for early users differ significantly from the factors that drive continued use by advanced users. We discuss the factor that emerges as one of the strongest stated drivers of early adoption, TTS “voice” quality, particularly a “humansounding voice” as one of the key...
Publication details
Date: 27 February 2013
Type: Article
Publisher: Taylor & Francis
Aisling Ann O’Kane, Helena M. Mentis, and Eno Thereska
The purpose of the study is to explore how chronically ill patients and their specialized care network have viewed their personal medical information privacy and how it has impacted their perspectives of sharing their records with their network of healthcare providers and secondary use organizations. Diabetes patients and specialized diabetes medical care providers in Eastern England were interviewed about their sharing of medical information and their privacy concerns to inform a descriptive qualitative...
Publication details
Date: 23 February 2013
Type: Inproceeding
Publisher: ACM Conference on Computer Supported Cooperative Work
Yan Xu, Yining Wang, Tianren Liu, Junichi Tsujii, and Eric I-Chao Chang
Objective: To create an end-to-end system to identify temporal relation in discharge summaries for the 2012 i2b2 challenge. The challenge includes event extraction, timex extraction and temporal relation identification. Design: An end-to-end temporal relation system was developed. It includes three subsystems: event extraction system (CRF name entity extraction and their corresponding attribute classifiers), temporal extraction system (CRF name entity extraction, their corresponding attribute...
Publication details
Date: 1 February 2013
Type: Article
Publisher: BMJ Group
Pranav Ramkrishnan, Aditya Vashistha, Ed Cutrell, and Bill Thies
Because doctors are scarce in developing regions, they often lack the time to provide detailed counseling to every patient. In this paper, we propose DocTalk: a system that extends doctors' visits by allowing them to share pre-recorded audio messages, in their own voice, to patients with low-end mobile phones. DocTalk uses a combination of SMS and interactive voice response (IVR) to orchestrate this communication between doctors and patients. We describe the design and implementation of the system, as well...
Publication details
Date: 1 January 2013
Type: Inproceeding
Publisher: ACM Symposium on Computing for Development (ACM DEV)
Flavio Ribeiro, Dinei Florencio, Philip Chou, and Zhengyou Zhang
Augmented reality applications have focused on visually integrating virtual objects into real environments. In this paper, we propose an auditory augmented reality, where we integrate acoustic virtual objects into the real world. We sonify objects that do not intrinsically produce sound, with the purpose of revealing additional information about them. Using spatialized (3D) audio synthesis, acoustic virtual objects are placed at specific real-world coordinates, obviating the need to explicitly tell the...
Publication details
Date: 1 September 2012
Type: Inproceeding
Publisher: IEEE
Moshe Gabel, Erin Renshaw, Assaf Schuster, and Ran Gilad-Bachrach
Human gait is an important indicator of health, with applications ranging from diagnosis, monitoring, and rehabilitation. In practice, the use of gait analysis has been limited. Existing gait analysis systems are either expensive, intrusive, or require well-controlled environments such as a clinic or a laboratory. We present an accurate gait analysis system that is economical and non-intrusive. Our system is based on the Kinect sensor and thus can extract comprehensive gait information from all parts of...
Publication details
Date: 1 August 2012
Type: Inproceeding
Publisher: Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Nupur Bhatnagar, Abhishek Sinha, Navkar Samdaria, Aakar Gupta, Shelly Batra, Manish Bhardwaj, and William Thies
Managing chronic disease is particularly challenging in the developing world, because every trip to a health center can translate to lost time and wages on the part of the patient. This problem is especially acute for tuberculosis patients, who in India are required to visit a center over 40 times in the course of a six-month treatment period. In this paper, we explore the role of a biometric attendance terminal in persuading patients to complete follow-up health visits in slum communities of New Delhi,...
Publication details
Date: 1 June 2012
Type: Inproceeding
Publisher: International Conference on Persuasive Technology
Yan Xu, Junichi Tsujii, and Eric Chang
Objective: To develop a system to extract follow-up information from radiology reports. The method may be used as a component in a system which automatically generates follow-up information in a timely fashion. Methods: A novel method of combining an LSP (labeled sequential pattern) classifier with a CRF (conditional random field) recognizer was devised. The LSP classifier filters out irrelevant sentences, while the CRF recognizer extracts follow-up and time phrases from candidate sentences...
Publication details
Date: 28 May 2012
Type: Article
Dezhi Hong, Ben Zhang, Qiang Li, Shahriar Nirjon, Robert Dickerson, Guobin Shen, Xiaofan Jiang, and John A. Stankovic
A mobile phone, as a pervasive device, has great potential in human wellness monitoring. In this demo, we first present the design and implementation of our hardware - SEPTIMU. SEPTIMU consists of a small baseboard and a pair of tiny sensor boards embedded inside conventional earphones. The baseboard provides power conversion and data communication through the normal audio jack interface. The embedded sensor board is 1×1cm2 and integrates 3-axis accelerometer, gyroscope, thermometer, photodiode and...
Publication details
Date: 1 April 2012
Type: Inproceeding
Publisher: ACM
Indrani Medhi, Mohit Jain, Anuj Tewari, Mohini Bhavsar, Michael Matheke-Fischer, and Edward Cutrell
Most organizations in the developing world still rely on paper for record keeping, giving rise to many problems in aggregation, storage, transmission and analysis of data. Errors and time delays associated with paper data are particularly problematic in the domain of healthcare. We present a case study of CommCare, a low-cost mobile phone data collection solution deployed to enhance the paper-based record management system of a non-profit organization working in prevention of child malnutrition in rural...
Publication details
Date: 1 January 2012
Type: Inproceeding
Publisher: Nordic Conference on Human-Computer Interaction
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