huashen218/convxai-cia-dataset huggingface dataset:
Title: Analysis and Modeling of Grid Performance on Touchscreen Mobile Devices
Authors: family: Pfeuffer
given: Ken; family: Li
given: Yang
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: grid ui, predictive interfaces, performance modeling, machine learning, touchscreen mobile device

Abstract: Touchscreen mobile devices can afford rich interaction behaviors but they are complex to model. Scrollable two-dimensional grids are a common user interface on mobile devices that allow users to access a large number of items on a small screen by direct touch. By analyzing touch input and eye gaze of users during grid interaction, we reveal how multiple performance components come into play in such a task, including navigation, visual search and pointing. These findings inspired us to design a novel predictive model that combines these components for modeling grid tasks. We realized these model components by employing both traditional analytical methods and data-driven machine learning approaches. In addition to showing high accuracy achieved by our model in predicting human performance on a test dataset, we demonstrate how such a model can lead to a significant reduction in interaction time when used in a predictive user interface.
Title: Communication Behavior in Embodied Virtual Reality
Authors: family: Smith
given: Harrison Jesse; family: Neff
given: Michael
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: computer-mediated communication, vr, embodiment, social presence, virtual reality

Abstract: Embodied virtual reality faithfully renders users' movements onto an avatar in a virtual 3D environment, supporting nuanced nonverbal behavior alongside verbal communication. To investigate communication behavior within this medium, we had 30 dyads complete two tasks using a shared visual workspace: negotiating an apartment layout and placing model furniture on an apartment floor plan. Dyads completed both tasks under three different conditions: face-to-face, embodied VR with visible full-body avatars, and no embodiment VR, where the participants shared a virtual space, but had no visible avatars. Both subjective measures of users' experiences and detailed annotations of verbal and nonverbal behavior are used to understand how the media impact communication behavior. Embodied VR provides a high level of social presence with conversation patterns that are very similar to face-to-face interaction. In contrast, providing only the shared environment was generally found to be lonely and appears to lead to degraded communication.
Title: In the Eye of the Student: An Intangible Cultural Heritage Experience, with a Human-Computer Interaction Twist
Authors: family: Giglitto
given: Danilo; family: Lazem
given: Shaimaa; family: Preston
given: Anne
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: decolonization, hci, egypt, hci education, ict4d, hci4d, intangible cultural heritage, bottom-up, cross-cultural design, postcolonialism

Abstract: We critically engage with CHI communities emerging outside the global North (ArabHCI and AfriCHI) to explore how participation is configured and enacted within socio-cultural and political contexts fundamentally different from Western societies. We contribute to recent discussions about postcolonialism and decolonization of HCI by focusing on non-Western future technology designers. Our lens was a course designed to engage Egyptian students with a local yet culturally-distant community to design applications for documenting intangible heritage. Through an action research, the instructors reflect on selected students' activities. Despite deploying a flexible learning curriculum that encourages greater autonomy, the students perceived themselves with less agency than other institutional stakeholders involved in the project. Further, some of them struggled to empathize with the community as the impact of the cultural differences on configuring participation was profound. We discuss the implications of the findings on HCI education and in international cross-cultural design projects.
Title: shapeShift: 2D Spatial Manipulation and Self-Actuation of Tabletop Shape Displays for Tangible and Haptic Interaction
Authors: family: Siu
given: Alexa F.; family: Gonzalez
given: Eric J.; family: Yuan
given: Shenli; family: Ginsberg
given: Jason B.; family: Follmer
given: Sean
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: actuated tangibles, shape-changing user interfaces, shape displays

Abstract: We explore interactions enabled by 2D spatial manipulation and self-actuation of a tabletop shape display. To explore these interactions, we developed shapeShift, a compact, high-resolution (7 mm pitch), mobile tabletop shape display. shapeShift can be mounted on passive rollers allowing for bimanual interaction where the user can freely manipulate the system while it renders spatially relevant content. shapeShift can also be mounted on an omnidirectional-robot to provide both vertical and lateral kinesthetic feedback, display moving objects, or act as an encountered-type haptic device for VR. We present a study on haptic search tasks comparing spatial manipulation of a shape display for egocentric exploration of a map versus exploration using a fixed display and a touch pad. Results show a 30% decrease in navigation path lengths, 24% decrease in task time, 15% decrease in mental demand and 29% decrease in frustration in favor of egocentric navigation.
Title: Where is Community Among Online Learners? Identity, Efficacy and Personal Ties
Authors: family: Sun
given: Na; family: Rosson
given: Mary Beth; family: Carroll
given: John M.
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: online community, sense of community, distance education, collective efficacy

Abstract: Research questions about community among online learners are gaining importance as enrollments in online programs explode. However, what community means for this context has not been studied in a comprehensive way. We contribute a quantitative study of learners' feelings and behavior expectations about online community, adapting scales for sense of community (SOC) and developing an instrument to assess community collective efficacy (CCE). Our analysis of students' responses to these scales revealed two factors underlying SOC (shared identity and interpersonal friendship) and three factors underlying CCE (identity regulation, coordination and social support). We used these factors to discuss contrasting definitions of community (shared identity versus ego networks). Exploratory data analyses also revealed relationships to other student variables that begin to articulate roles and mechanisms for online students' felt community, and raise design implications about what we might do with and for the community structure.
Title: SpeechBubbles: Enhancing Captioning Experiences for Deaf and Hard-of-Hearing People in Group Conversations
Authors: family: Peng
given: Yi-Hao; family: Hsi
given: Ming-Wei; family: Taele
given: Paul; family: Lin
given: Ting-Yu; family: Lai
given: Po-En; family: Hsu
given: Leon; family: Chen
given: Tzu-chuan; family: Wu
given: Te-Yen; family: Chen
given: Yu-An; family: Tang
given: Hsien-Hui; family: Chen
given: Mike Y.
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: deaf and hard of hearing, hololens, text bubbles, augmented reality, word balloons, accessibility, closed captions

Abstract: Deaf and hard-of-hearing (DHH) individuals encounter difficulties when engaged in group conversations with hearing individuals, due to factors such as simultaneous utterances from multiple speakers and speakers whom may be potentially out of view. We interviewed and co-designed with eight DHH participants to address the following challenges: 1) associating utterances with speakers, 2) ordering utterances from different speakers, 3) displaying optimal content length, and 4) visualizing utterances from out-of-view speakers. We evaluated multiple designs for each of the four challenges through a user study with twelve DHH participants. Our study results showed that participants significantly preferred speechbubble visualizations over traditional captions. These design preferences guided our development of SpeechBubbles, a real-time speech recognition interface prototype on an augmented reality head-mounted display. From our evaluations, we further demonstrated that DHH participants preferred our prototype over traditional captions for group conversations.
Title: Juxtapeer: Comparative Peer Review Yields Higher Quality Feedback and Promotes Deeper Reflection
Authors: family: Cambre
given: Julia; family: Klemmer
given: Scott; family: Kulkarni
given: Chinmay
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: contrasting cases, comparative peer review, feedback

Abstract: Peer review asks novices to take on an evaluator's role, yet novices often lack the perspective to accurately assess the quality of others' work. To help learners give feedback on their peers' work through an expert lens, we present the Juxtapeer peer review system for structured comparisons. We build on theories of learning through contrasting cases, and contribute the first systematic evaluation of comparative peer review. In a controlled experiment, 476 consenting learners across four courses submitted 1,297 submissions, 4,102 reviews, and 846 self assessments. Learners assigned to compare submissions wrote reviews and self-reflections that were longer and received higher ratings from experts than those who evaluated submissions one at a time. A second study found that a ranking of submissions derived from learners' comparisons correlates well with staff ranking. These results demonstrate that comparing algorithmically-curated pairs of submissions helps learners write better feedback.
Title: Evorus: A Crowd-powered Conversational Assistant Built to Automate Itself Over Time
Authors: family: Huang
given: Ting-Hao (Kenneth); family: Chang
given: Joseph Chee; family: Bigham
given: Jeffrey P.
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: chatbot, conversational assistant, crowd-powered system, crowdsourcing, real-time crowdsourcing

Abstract: Crowd-powered conversational assistants have been shown to be more robust than automated systems, but do so at the cost of higher response latency and monetary costs. A promising direction is to combine the two approaches for high quality, low latency, and low cost solutions. In this paper, we introduce Evorus, a crowd-powered conversational assistant built to automate itself over time by (i) allowing new chatbots to be easily integrated to automate more scenarios, (ii) reusing prior crowd answers, and (iii) learning to automatically approve response candidates. Our 5-month-long deployment with 80 participants and 281 conversations shows that Evorus can automate itself without compromising conversation quality. Crowd-AI architectures have long been proposed as a way to reduce cost and latency for crowd-powered systems; Evorus demonstrates how automation can be introduced successfully in a deployed system. Its architecture allows future researchers to make further innovation on the underlying automated components in the context of a deployed open domain dialog system.
Title: "Play PRBLMS": Identifying and Correcting Less Accessible Content in Voice Interfaces
Authors: family: Springer
given: Aaron; family: Cramer
given: Henriette
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: bias, music, findability, voice

Abstract: Voice interfaces often struggle with specific types of named content. Domain-specific terminology and naming may push the bounds of standard language, especially in domains like music where artistic creativity extends beyond the music itself. Artists may name themselves with symbols (e.g. M S C RA) that most standard automatic speech recognition (ASR) systems cannot transcribe. Voice interfaces also experience difficulty surfacing content whose titles include non-standard spellings, symbols or other ASCII characters in place of English letters, or are written using a non-standard dialect. We present a generalizable method to detect content that current voice interfaces underserve by leveraging differences in engagement across input modalities. Using this detection method, we develop a typology of content types and linguistic practices that can make content hard to surface. Finally, we present a process using crowdsourced annotations to make underserved content more accessible.
Title: Exploring the Value of Parent Tracked Baby Data in Interactions with Healthcare Professionals: A Data-Enabled Design Exploration
Authors: family: van Kollenburg
given: Janne; family: Bogers
given: Sander; family: Rutjes
given: Heleen; family: Deckers
given: Eva; family: Frens
given: Joep; family: Hummels
given: Caroline
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: situated explorations, data-enabled design, healthcare, personal informatics

Abstract: This paper presents a designerly exploration of the potential values of parent-tracked baby data in interactions between parents and healthcare professionals (HCPs). Where previous work has used parent-tracked data as part of the solution to a problem, we contribute by starting our design exploration from data, using it as creative material in our design process. As we intend to work towards a system that could be viable across different levels of care, we invited three different types of HCPs and five families with newborns, for a five-week situated design exploration. Facilitated by an open and dynamic data collection toolkit, parents and HCPs could together decide what data to collect. In a continuous dialogue, they reflected on the relevance of that data in their interaction. Based on this, we continuously and remotely developed two concepts.
Title: Tangible Awareness: How Tangibles on Tabletops Influence Awareness of Each Other's Actions
Authors: family: Cherek
given: Christian; family: Brocker
given: Anke; family: Voelker
given: Simon; family: Borchers
given: Jan
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: collocated group work, secondary task awareness, tangibles, information processing, tangible interaction vs. touch interaction, large tabletops, awareness

Abstract: Tangibles on multitouch tabletops increase speed, accuracy, and eyes-free operability for individual users, and verbal and behavioral social interaction among multiple users around smaller tables with a shared focus of attention. Modern multitouch tables, however, provide sizes and resolutions that let groups work alongside each other in separate workspaces. But how aware do these users remain of each other's actions, and what impact can tangibles have on their awareness? In our study, groups of 2--4 users around the table played an individual game grabbing their attention as primary task, while they also had to occasionally become aware of other players'actions and react as secondary task. We found that players were significantly more aware of other players'actions using tangibles than those using pure multitouch interaction, indicated by faster reaction times. This effect was especially strong with more players. We close with qualitative user feedback and design recommendations. We found that players were significantly more aware of other players'actions using tangibles than those using pure multitouch interaction, indicated by faster reaction times. This effect was especially strong with more players. We close with qualitative user feedback and design recommendations.
Title: Grand Challenges in Shape-Changing Interface Research
Authors: family: Alexander
given: Jason; family: Roudaut
given: Anne; family: Steimle
given: Jürgen; family: Hornbæk
given: Kasper; family: Bruns Alonso
given: Miguel; family: Follmer
given: Sean; family: Merritt
given: Timothy
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: shape-changing interfaces, grand challenges, research agenda

Abstract: Shape-changing interfaces have emerged as a new method for interacting with computers, using dynamic changes in a device's physical shape for input and output. With the advances of research into shape-changing interfaces, we see a need to synthesize the main, open research questions. The purpose of this synthesis is to formulate common challenges across the diverse fields engaged in shape-change research, to facilitate progression from single prototypes and individual design explorations to grander scientific goals, and to draw attention to challenges that come with maturity, including those concerning ethics, theory-building, and societal impact. In this article we therefore present 12 grand challenges for research on shape-changing interfaces, derived from a three-day workshop with 25 shape-changing interface experts with backgrounds in design, computer science, human-computer interaction, engineering, robotics, and material science.
Title: Investigating the Role of an Overview Device in Multi-Device Collaboration
Authors: family: Brudy
given: Frederik; family: Budiman
given: Joshua Kevin; family: Houben
given: Steven; family: Marquardt
given: Nicolai
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: multi-device interaction, ad-hoc collaboration, mobiles and tablets, decision-making, co-located collaboration

Abstract: The availability of mobile device ecologies enables new types of ad-hoc co-located decision-making and sensemaking practices in which people find, collect, discuss, and share information. However, little is known about what kind of device configurations are suitable for these types of tasks. This paper contributes new insights into how people use configurations of devices for one representative example task: collaborative co-located trip-planning. We present an empirical study that explores and compares three strategies to use multiple devices: no-overview, overview on own device, and a separate overview device. The results show that the overview facilitated decision- and sensemaking during a collaborative trip-planning task by aiding groups to iterate their itinerary, organize locations and timings efficiently, and discover new insights. Groups shared and discussed more opinions, resulting in more democratic decision-making. Groups provided with a separate overview device engaged more frequently and spent more time in closely-coupled collaboration.
Title: Greater than the Sum of its PARTs: Expressing and Reusing Design Intent in 3D Models
Authors: family: Hofmann
given: Megan; family: Hann
given: Gabriella; family: Hudson
given: Scott E.; family: Mankoff
given: Jennifer
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: fabrication, prototyping, 3d printing

Abstract: With the increasing popularity of consumer-grade 3D printing, many people are creating, and even more using, objects shared on sites such as Thingiverse. However, our formative study of 962 Thingiverse models shows a lack of re-use of models, perhaps due to the advanced skills needed for 3D modeling. An end user program perspective on 3D modeling is needed. Our framework (PARTs) empowers amateur modelers to graphically specify design intent through geometry. PARTs includes a GUI, scripting API and exemplar library of assertions which test design expectations and integrators which act on intent to create geometry. PARTs lets modelers integrate advanced, model specific functionality into designs, so that they can be re-used and extended, without programming. In two workshops, we show that PARTs helps to create 3D printable models, and modify existing models more easily than with a standard tool.
Title: Share and Share Alike? Social Information and Interaction Style in Coordination of Shared Use
Authors: family: Niemantsverdriet
given: Karin; family: van de Werff
given: Thomas; family: van Essen
given: Harm; family: Eggen
given: Berry
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: interaction design, social translucence, multi-user interaction, shared use, awareness, connected lighting

Abstract: Interfaces are commonly designed from the perspective of individual users, even though most of the systems we use in everyday life are in fact shared. We argue that more attention is needed for system sharing, especially because interfaces are known to influence coordination of shared use. In this work, we aim to deepen the understanding of this relation. To do so, we design three interfaces for a shared lighting system that vary in the type of social information they allow people to share with others and in their overall interaction style. We systematically compare longitudinal and real-life use of the interfaces, evaluating (1) people's appraisal of three types of social information and (2) the influence of an interaction style on coordination of shared use. The results disclose relations between the interface and the amount of verbal communication, consideration, and accountability. With this work, we urge the need for interaction designers to consider shared use.
Title: What's the Difference? Evaluating Variations of Multi-Series Bar Charts for Visual Comparison Tasks
Authors: family: Srinivasan
given: Arjun; family: Brehmer
given: Matthew; family: Lee
given: Bongshin; family: Drucker
given: Steven M.
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: visualization dashboards, visual comparison, online experiment, task-based evaluation

Abstract: An increasingly common approach to data analysis involves using information dashboards to visually compare changing data. However, layout constraints coupled with varying levels of visualization literacy among dashboard users make facilitating visual comparison in dashboards a challenging task. In this paper, we evaluate variants of bar charts, one of the most prevalent class of charts used in dashboards. We report an online experiment (N = 74) conducted to evaluate four alternative designs: 1) grouped bar chart, 2) grouped bar chart with difference overlays, 3) bar chart with difference overlays, and 4) difference bar chart. Results show that charts with difference overlays facilitate a wider range of comparison tasks while performing comparably to charts without them on individual tasks. Finally, we discuss the implications of our findings, with a focus on supporting visual comparison in dashboards.
Title: Eliciting Users' Demand for Interface Features
Authors: family: Nov
given: Oded; family: Su
given: Han
Venue: Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems
Keywords: economics, cost-benefit, user interface. feature economics, revealed preference, choice overload, demand, features

Abstract: How valuable are certain interface features to their users? How can users' demand for features be quantified? To address these questions, users' demand curve for the sorting feature was elicited in a controlled experiment, using personal finance as the user context. Users made ten rounds of investment allocation across up to 77 possible funds, thus encountering choice overload, typical of many online environments. Users were rewarded for positive investment returns. To overcome choice overload, users could sort the alternatives based on product attributes (fees, category, fund name, past performance). To elicit their demand for sorting, the experimental design enabled users to forgo 0%-9% of their reward in return for activating the sorting feature. The elicited downward sloping demand curve suggests a curvilinear relationship between sorting use and cost. More broadly, the study offers a way to quantify user demand of UI features, and a basis for comparison between features.