CHI 2015: Seoul, Republic of Korea

• 
  Bo Begole, Jinwoo Kim, Kori Inkpen, Woontack Woo:
  Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, CHI 2015, Seoul, Republic of Korea, April 18-23, 2015. ACM 2015, ISBN 978-1-4503-3145-6

Non-Rigid Interaction Surfaces

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  Lining Yao, Jifei Ou, Chin-Yi Cheng, Helene Steiner, Wen Wang, Guanyun Wang, Hiroshi Ishii:
  bioLogic: Natto Cells as Nanoactuators for Shape Changing Interfaces. 1-10
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  Deepak Ranjan Sahoo, Diego Martínez Plasencia, Sriram Subramanian:
  Control of Non-Solid Diffusers by Electrostatic Charging. 11-14
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  Yomna Abdelrahman, Alireza Sahami Shirazi, Niels Henze, Albrecht Schmidt:
  Investigation of Material Properties for Thermal Imaging-Based Interaction. 15-18
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  John Hardy, Christian Weichel, Faisal Taher, John Vidler, Jason Alexander:
  ShapeClip: Towards Rapid Prototyping with Shape-Changing Displays for Designers. 19-28
• 
  Masa Ogata, Masaaki Fukumoto:
  FluxPaper: Reinventing Paper with Dynamic Actuation Powered by Magnetic Flux. 29-38

What do I hear? Communicating with Sound

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  João Guerreiro, André Rodrigues, Kyle Montague, Tiago João Vieira Guerreiro, Hugo Nicolau, Daniel Gonçalves:
  TabLETS Get Physical: Non-Visual Text Entry on Tablet Devices. 39-42
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  Mark Cartwright, Bryan Pardo:
  VocalSketch: Vocally Imitating Audio Concepts. 43-46
• 
  Robert Tubb, Simon Dixon:
  An Evaluation of Multidimensional Controllers for Sound Design Tasks. 47-56
• 
  Ryohei Suzuki, Daisuke Sakamoto, Takeo Igarashi:
  AnnoTone: Record-time Audio Watermarking for Context-aware Video Editing. 57-66
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  Thomas Smith, Simon J. Bowen, Bettina Nissen, Jonathan Hook, Arno Verhoeven, John Bowers, Peter C. Wright, Patrick Olivier:
  Exploring Gesture Sonification to Support Reflective Craft Practice. 67-76

Rethinking Evaluation for Today's HCI

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  Kevin Chen, Haoqi Zhang:
  Remote Paper Prototype Testing. 77-80
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  Sandy Claes, Niels Wouters, Karin Slegers, Andrew Vande Moere:
  Controlling In-the-Wild Evaluation Studies of Public Displays. 81-84
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  Anna Luusua, Johanna Ylipulli, Marko Jurmu, Henrika Pihlajaniemi, Piia Markkanen, Timo Ojala:
  Evaluation Probes. 85-94
• 
  Gunnar Harboe, Elaine M. Huang:
  Real-World Affinity Diagramming Practices: Bridging the Paper-Digital Gap. 95-104
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  Cosmin Munteanu, Heather Molyneaux, Wendy Moncur, Mario Romero, Susan O'Donnell, John Vines:
  Situational Ethics: Re-thinking Approaches to Formal Ethics Requirements for Human-Computer Interaction. 105-114

Improving Game Experiences

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  Mélodie Vidal, Rémi Bismuth, Andreas Bulling, Hans Gellersen:
  The Royal Corgi: Exploring Social Gaze Interaction for Immersive Gameplay. 115-124
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  Arun Kulshreshth, Joseph J. LaViola Jr.:
  Exploring 3D User Interface Technologies for Improving the Gaming Experience. 125-134
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  Zenja Ivkovic, Ian Stavness, Carl Gutwin, Steven W. T. Sutcliffe:
  Quantifying and Mitigating the Negative Effects of Local Latencies on Aiming in 3D Shooter Games. 135-144
• 
  Alena Denisova, Paul A. Cairns:
  First Person vs. Third Person Perspective in Digital Games: Do Player Preferences Affect Immersion? 145-148
• 
  Jin Ha Lee, Sungsoo (Ray) Hong, Hyerim Cho, Yea-Seul Kim:
  VIZMO Game Browser: Accessing Video Games by Visual Style and Mood. 149-152

Facebook Newsfeeds & Friendships

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  Motahhare Eslami, Aimee Rickman, Kristen Vaccaro, Amirhossein Aleyasen, Andy Vuong, Karrie Karahalios, Kevin Hamilton, Christian Sandvig:
  "I always assumed that I wasn't really that close to [her]": Reasoning about Invisible Algorithms in News Feeds. 153-162
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  Paul Lapides, Apoorve Chokshi, Sheelagh Carpendale, Saul Greenberg:
  News Feed: What's in it for Me? 163-172
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  Emilee J. Rader, Rebecca Gray:
  Understanding User Beliefs About Algorithmic Curation in the Facebook News Feed. 173-182

Activism in Wikipedia & Beyond

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  Scott A. Hale:
  Cross-language Wikipedia Editing of Okinawa, Japan. 183-192
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  Erik Borra, Esther Weltevrede, Paolo Ciuccarelli, Andreas Kaltenbrunner, David Laniado, Giovanni Magni, Michele Mauri, Richard Rogers, Tommaso Venturini:
  Societal Controversies in Wikipedia Articles. 193-196
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  Shilad Sen, Heather Ford, David R. Musicant, Mark Graham, Oliver S. B. Keyes, Brent J. Hecht:
  Barriers to the Localness of Volunteered Geographic Information. 197-206
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  Amanda Menking, Ingrid Erickson:
  The Heart Work of Wikipedia: Gendered, Emotional Labor in the World's Largest Online Encyclopedia. 207-210
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  Shih-Wen Huang, Minhyang (Mia) Suh, Benjamin Mako Hill, Gary Hsieh:
  How Activists Are Both Born and Made: An Analysis of Users on Change.org. 211-220

HMDs & Wearables to Overcome Disabilities

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  Meethu Malu, Leah Findlater:
  Personalized, Wearable Control of a Head-mounted Display for Users with Upper Body Motor Impairments. 221-230
• 
  Kristin Williams, Karyn Moffatt, Denise McCall, Leah Findlater:
  Designing Conversation Cues on a Head-Mounted Display to Support Persons with Aphasia. 231-240
• 
  Dhruv Jain, Leah Findlater, Jamie Gilkeson, Benjamin Holland, Ramani Duraiswami, Dmitry N. Zotkin, Christian Vogler, Jon E. Froehlich:
  Head-Mounted Display Visualizations to Support Sound Awareness for the Deaf and Hard of Hearing. 241-250
• 
  Simon Katan, Mick Grierson, Rebecca Fiebrink:
  Using Interactive Machine Learning to Support Interface Development Through Workshops with Disabled People. 251-254
• 
  Mayank Goel, Chen Zhao, Ruth Vinisha, Shwetak N. Patel:
  Tongue-in-Cheek: Using Wireless Signals to Enable Non-Intrusive and Flexible Facial Gestures Detection. 255-258

Visualizing Data

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  Jian Zhao, Zhicheng Liu, Mira Dontcheva, Aaron Hertzmann, Alan Wilson:
  MatrixWave: Visual Comparison of Event Sequence Data. 259-268
• 
  Xiaotong Liu, Han-Wei Shen:
  The Effects of Representation and Juxtaposition on Graphical Perception of Matrix Visualization. 269-278
• 
  Nan Cao, Yu-Ru Lin, Liangyue Li, Hanghang Tong:
  g-Miner: Interactive Visual Group Mining on Multivariate Graphs. 279-288
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  Fan Du, Nan Cao, Jian Zhao, Yu-Ru Lin:
  Trajectory Bundling for Animated Transitions. 289-298

Interaction in 3D Space

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  Simon T. Perrault, Eric Lecolinet, Yoann Pascal Bourse, Shengdong Zhao, Yves Guiard:
  Physical Loci: Leveraging Spatial, Object and Semantic Memory for Command Selection. 299-308
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  Themis Omirou, Asier Marzo, Sue Ann Seah, Sriram Subramanian:
  LeviPath: Modular Acoustic Levitation for 3D Path Visualisations. 309-312
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  Mark M. Shovman, James L. Bown, Andrea Szymkowiak, Kenneth C. Scott-Brown:
  Twist and Learn: Interface Learning in 3DOF Exploration of 3D Scatterplots. 313-316
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  Merwan Achibet, Géry Casiez, Anatole Lécuyer, Maud Marchal:
  THING: Introducing a Tablet-based Interaction Technique for Controlling 3D Hand Models. 317-326
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  Gary Perelman, Marcos Serrano, Mathieu Raynal, Celia Picard, Mustapha Derras, Emmanuel Dubois:
  The Roly-Poly Mouse: Designing a Rolling Input Device Unifying 2D and 3D Interaction. 327-336

Understanding & Evaluating Performance

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  Saleema Amershi, Max Chickering, Steven M. Drucker, Bongshin Lee, Patrice Y. Simard, Jina Suh:
  ModelTracker: Redesigning Performance Analysis Tools for Machine Learning. 337-346
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  Matthew Kay, Shwetak N. Patel, Julie A. Kientz:
  How Good is 85%?: A Survey Tool to Connect Classifier Evaluation to Acceptability of Accuracy. 347-356
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  Andy Cockburn, Philip Quinn, Carl Gutwin:
  Examining the Peak-End Effects of Subjective Experience. 357-366
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  Siddhartha Asthana, Pushpendra Singh, Parul Gupta:
  Survival Analysis: Objective assessment of Wait Time in HCI. 367-376

Music & Art

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  Giovanni Maria Troiano, Esben Warming Pedersen, Kasper Hornbæk:
  Deformable Interfaces for Performing Music. 377-386
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  Adrian Hazzard, Steve Benford, Gary E. Burnett:
  Sculpting a Mobile Musical Soundtrack. 387-396
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  Daniela K. Rosner, Hidekazu Saegusa, Jeremy Friedland, Allison Chambliss:
  Walking by Drawing. 397-406
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  Tim Coughlan, Laura Carletti, Gabriella Giannachi, Steve Benford, Derek McAuley, Dominic Price, Cristina Locatelli, Rebecca Sinker, John Stack:
  ArtMaps: Interpreting the Spatial Footprints of Artworks. 407-416

Supporting Change in Developing Countries

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  Aditya Vashistha, Edward Cutrell, Gaetano Borriello, William Thies:
  Sangeet Swara: A Community-Moderated Voice Forum in Rural India. 417-426
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  Neha Kumar, Richard J. Anderson:
  Mobile Phones for Maternal Health in Rural India. 427-436
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  Syed Ishtiaque Ahmed, Nusrat Jahan Mim, Steven J. Jackson:
  Residual Mobilities: Infrastructural Displacement and Post-Colonial Computing in Bangladesh. 437-446
• 
  Emeline Therias, Jon Bird, Paul Marshall:
  Más Tecnologia, Más Cambio?: Investigating an Educational Technology Project in Rural Peru. 447-456

Privacy, Security & Interruptions

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  Ewa Luger, Lachlan Urquhart, Tom Rodden, Michael Golembewski:
  Playing the Legal Card: Using Ideation Cards to Raise Data Protection Issues within the Design Process. 457-466
• 
  Qatrunnada Ismail, Tousif Ahmed, Apu Kapadia, Michael K. Reiter:
  Crowdsourced Exploration of Security Configurations. 467-476
• 
  Eric Gilbert:
  Open Book: A Socially-inspired Cloaking Technique that Uses Lexical Abstraction to Transform Messages. 477-486
• 
  Seungjun Kim, Jaemin Chun, Anind K. Dey:
  Sensors Know When to Interrupt You in the Car: Detecting Driver Interruptibility Through Monitoring of Peripheral Interactions. 487-496

Making & Sharing Assistive Technologies

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  Roisin McNaney, Ivan Poliakov, John Vines, Madeline Balaam, Pengfei Zhang, Patrick Olivier:
  LApp: A Speech Loudness Application for People with Parkinson's on Google Glass. 497-500
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  Roisin McNaney, Madeline Balaam, Amey Holden, Guy Schofield, Daniel Jackson, Mary Webster, Brook Galna, Gillian Barry, Lynn Rochester, Patrick Olivier:
  Designing for and with People with Parkinson's: A Focus on Exergaming. 501-510
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  Helena M. Mentis, Rita Shewbridge, Sharon Powell, Paul Fishman, Lisa Shulman:
  Being Seen: Co-Interpreting Parkinson's Patient's Movement Ability in Deep Brain Stimulation Programming. 511-520
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  Diane Gromala, Xin Tong, Amber Choo, Mehdi Karamnejad, Chris D. Shaw:
  The Virtual Meditative Walk: Virtual Reality Therapy for Chronic Pain Management. 521-524
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  Erin Buehler, Stacy M. Branham, Abdullah Ali, Jeremy J. Chang, Megan Kelly Hofmann, Amy Hurst, Shaun K. Kane:
  Sharing is Caring: Assistive Technology Designs on Thingiverse. 525-534

Matching & Facilitating Social Interactions

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  Christina A. Masden, W. Keith Edwards:
  Understanding the Role of Community in Online Dating. 535-544
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  Julia M. Mayer, Starr Roxanne Hiltz, Quentin Jones:
  Making Social Matching Context-Aware: Design Concepts and Open Challenges. 545-554
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  Tien T. Nguyen, Duyen T. Nguyen, Shamsi T. Iqbal, Eyal Ofek:
  The Known Stranger: Supporting Conversations between Strangers with Personalized Topic Suggestions. 555-564
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  Ionut Damian, Chiew Seng Sean Tan, Tobias Baur, Johannes Schöning, Kris Luyten, Elisabeth André:
  Augmenting Social Interactions: Realtime Behavioural Feedback using Social Signal Processing Techniques. 565-574

Reflecting Upon Design Reflection

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  William Odom:
  Understanding Long-Term Interactions with a Slow Technology: an Investigation of Experiences with FutureMe. 575-584
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  Eric P. S. Baumer:
  Reflective Informatics: Conceptual Dimensions for Designing Technologies of Reflection. 585-594
• 
  Yuzuru Tanahashi, Kwan-Liu Ma:
  Stock Lamp: An Engagement-Versatile Visualization Design. 595-604
• 
  Mark Matthews, Jaime Snyder, Lindsay Reynolds, Jacqueline T. Chien, Adam Shih, Jonathan W. Lee, Geri Gay:
  Real-Time Representation Versus Response Elicitation in Biosensor Data. 605-608

Makers & Hackers

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  Ron Wakkary, Markus Lorenz Schilling, Matthew A. Dalton, Sabrina Hauser, Audrey Desjardins, Xiao Zhang, Henry W. J. Lin:
  Tutorial Authorship and Hybrid Designers: The Joy (and Frustration) of DIY Tutorials. 609-618
• 
  Jennifer Jacobs, Amit Zoran:
  Hybrid Practice in the Kalahari: Design Collaboration through Digital Tools and Hunter-Gatherer Craft. 619-628
• 
  Austin L. Toombs, Shaowen Bardzell, Jeffrey Bardzell:
  The Proper Care and Feeding of Hackerspaces: Care Ethics and Cultures of Making. 629-638
• 
  Lora Oehlberg, Wesley Willett, Wendy E. Mackay:
  Patterns of Physical Design Remixing in Online Maker Communities. 639-648

How Fast Can you Type on your Phone?

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  Andrew Fowler, Kurt Partridge, Ciprian Chelba, Xiaojun Bi, Tom Ouyang, Shumin Zhai:
  Effects of Language Modeling and its Personalization on Touchscreen Typing Performance. 649-658
• 
  Keith Vertanen, Haythem Memmi, Justin Emge, Shyam Reyal, Per Ola Kristensson:
  VelociTap: Investigating Fast Mobile Text Entry using Sentence-Based Decoding of Touchscreen Keyboard Input. 659-668
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  Luis A. Leiva, Alireza Sahami Shirazi, Alejandro Catalá, Niels Henze, Albrecht Schmidt:
  Text Entry on Tiny QWERTY Soft Keyboards. 669-678
• 
  Shyam Reyal, Shumin Zhai, Per Ola Kristensson:
  Performance and User Experience of Touchscreen and Gesture Keyboards in a Lab Setting and in the Wild. 679-688

Understand & Enhancing Learning

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  Yi-Chieh Lee, Wen-Chieh Lin, Fu-Yin Cherng, Hao-Chuan Wang, Ching-Ying Sung, Jung-Tai King:
  Using Time-Anchored Peer Comments to Enhance Social Interaction in Online Educational Videos. 689-698
• 
  Andrea Bianchi, So-Ryang Ban, Ian Oakley:
  Designing a Physical Aid to Support Active Reading on Tablets. 699-708

Family Communication

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  Henriette Cramer, Maia L. Jacobs:
  Couples' Communication Channels: What, When & Why? 709-712
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  Margot Brereton, Alessandro Soro, Kate Vaisutis, Paul Roe:
  The Messaging Kettle: Prototyping Connection over a Distance between Adult Children and Older Parents. 713-716
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  Roberta M. Melvin, Andrea Bunt, Erick Oduor, Carman Neustaedter:
  The Effect of Signal Expense and Dependability on Family Communication in Rural and Northern Canada. 717-726
• 
  Alexis Hiniker, Kiley Sobel, Hyewon Suh, Yi-Chen Sung, Charlotte P. Lee, Julie A. Kientz:
  Texting while Parenting: How Adults Use Mobile Phones while Caring for Children at the Playground. 727-736
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  Adam Fourney, Ryen W. White, Eric Horvitz:
  Exploring Time-Dependent Concerns about Pregnancy and Childbirth from Search Logs. 737-746

Crowdsourcing Fans & Friends

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  Martin D. Flintham, Raphael Velt, Max L. Wilson, Edward J. Anstead, Steve Benford, Anthony Brown, Timothy Pearce, Dominic Price, James Sprinks:
  Run Spot Run: Capturing and Tagging Footage of a Race by Crowds of Spectators. 747-756
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  Franco Curmi, Maria Angela Ferrario, Jon Whittle, Florian 'Floyd' Mueller:
  Crowdsourcing Synchronous Spectator Support: (go on, go on, you're the best)^n-1. 757-766
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  Guy Schofield, Tom Bartindale, Peter C. Wright:
  Bootlegger: Turning Fans into Film Crew. 767-776
• 
  Hwajung Hong, Eric Gilbert, Gregory D. Abowd, Rosa I. Arriaga:
  In-group Questions and Out-group Answers: Crowdsourcing Daily Living Advice for Individuals with Autism. 777-786

Managing Personal Privacy

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  Hazim Almuhimedi, Florian Schaub, Norman M. Sadeh, Idris Adjerid, Alessandro Acquisti, Joshua Gluck, Lorrie Faith Cranor, Yuvraj Agarwal:
  Your Location has been Shared 5, 398 Times!: A Field Study on Mobile App Privacy Nudging. 787-796
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  Jeffrey Warshaw, Tara Matthews, Steve Whittaker, Chris Kau, Mateo N. Bengualid, Barton A. Smith:
  Can an Algorithm Know the "Real You"?: Understanding People's Reactions to Hyper-personal Analytics Systems. 797-806
• 
  Fuming Shih, Ilaria Liccardi, Daniel J. Weitzner:
  Privacy Tipping Points in Smartphones Privacy Preferences. 807-816
• 
  Yang Wang, Liang Gou, Anbang Xu, Michelle X. Zhou, Huahai Yang, Hernan Badenes:
  VeilMe: An Interactive Visualization Tool for Privacy Configuration of Using Personality Traits. 817-826

Health Sensors & Monitoring

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  Mikael B. Skov, Pauline G. Johansen, Charlotte Schmidt Skov, Astrid Lauberg:
  No News is Good News: Remote Monitoring of Implantable Cardioverter-Defibrillator Patients. 827-836
• 
  Fadel Adib, Hongzi Mao, Zachary Kabelac, Dina Katabi, Robert C. Miller:
  Smart Homes that Monitor Breathing and Heart Rate. 837-846
• 
  Teng Han, Xiang Xiao, Lanfei Shi, John F. Canny, Jingtao Wang:
  Balancing Accuracy and Fun: Designing Camera Based Mobile Games for Implicit Heart Rate Monitoring. 847-856
• 
  Yongqiang Lyu, Xiaomin Luo, Jun Zhou, Chun Yu, Congcong Miao, Tong Wang, Yuanchun Shi, Ken-ichi Kameyama:
  Measuring Photoplethysmogram-Based Stress-Induced Vascular Response Index to Assess Cognitive Load and Stress. 857-866

Collaborative Tables, Walls & Rooms

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  Florian Block, James Hammerman, Michael S. Horn, Amy Spiegel, Jonathan Christiansen, Brenda Caldwell Phillips, Judy Diamond, E. Margaret Evans, Chia Shen:
  Fluid Grouping: Quantifying Group Engagement around Interactive Tabletop Exhibits in the Wild. 867-876
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  Paul K. Luff, Naomi Yamashita, Hideaki Kuzuoka, Christian Heath:
  Flexible Ecologies And Incongruent Locations. 877-886
• 
  Derek F. Reilly, Andy Echenique, Andy Wu, Anthony Tang, W. Keith Edwards:
  Mapping out Work in a Mixed Reality Project Room. 887-896

The Value of Things

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  Anne E. Bowser, Oliver L. Haimson, Edward F. Melcer, Elizabeth F. Churchill:
  On Vintage Values: The Experience of Secondhand Fashion Reacquisition. 897-906
• 
  Gary W. Pritchard, John Vines, Patrick Olivier:
  Your Money's No Good Here: The Elimination of Cash Payment on London Buses. 907-916
• 
  Junius Gunaratne, Oded Nov:
  Informing and Improving Retirement Saving Performance using Behavioral Economics Theory-driven User Interfaces. 917-920

Muscle-Computer Interfaces

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  Christoph Amma, Thomas Krings, Jonas Böer, Tanja Schultz:
  Advancing Muscle-Computer Interfaces with High-Density Electromyography. 929-938
• 
  Pedro Lopes, Alexandra Ion, Willi Mueller, Daniel Hoffmann, Patrik Jonell, Patrick Baudisch:
  Proprioceptive Interaction. 939-948

Phones for more than Just Talking & Text

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  Florian Heller, Jan O. Borchers:
  AudioScope: Smartphones as Directional Microphones in Mobile Audio Augmented Reality Systems. 949-952
• 
  Jeungmin Oh, Woohyeok Choi, Joohyun Kim, Uichin Lee:
  ScanShot: Detecting Document Capture Moments and Correcting Device Orientation. 953-956
• 
  Brennan Jones, Anna Witcraft, Scott Bateman, Carman Neustaedter, Anthony Tang:
  Mechanics of Camera Work in Mobile Video Collaboration. 957-966
• 
  Frank R. Bentley, Ying-Yu Chen, Christian Holz:
  Reducing the Stress of Coordination: Sharing Travel Time Information Between Contacts on Mobile Phones. 967-970
• 
  Pavel Andreevich Samsonov, Xun Tang, Johannes Schöning, Werner Kuhn, Brent J. Hecht:
  You Can't Smoke Here: Towards Support for Space Usage Rules in Location-aware Technologies. 971-974

Search & Recommendations

• 
  Benedikt Loepp, Katja Herrmanny, Jürgen Ziegler:
  Blended Recommending: Integrating Interactive Information Filtering and Algorithmic Recommender Techniques. 975-984
• 
  Jaimie Yejean Park, Neil O'Hare, Rossano Schifanella, Alejandro Jaimes, Chin-Wan Chung:
  A Large-Scale Study of User Image Search Behavior on the Web. 985-994
• 
  Yanir Kleiman, Joel Lanir, Dov Danon, Yasmin Felberbaum, Daniel Cohen-Or:
  DynamicMaps: Similarity-based Browsing through a Massive Set of Images. 995-1004
• 
  Maximilian Speicher, Andreas Both, Martin Gaedke:
  S.O.S.: Does Your Search Engine Results Page (SERP) Need Help? 1005-1014

Kids Haptic, Wearable, Tangible Learning

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  Nesra Yannier, Ali Israr, Jill Fain Lehman, Roberta L. Klatzky:
  FeelSleeve: Haptic Feedback to Enhance Early Reading. 1015-1024
• 
  Leyla Norooz, Matthew Louis Mauriello, Anita Jorgensen, Brenna McNally, Jon E. Froehlich:
  BodyVis: A New Approach to Body Learning Through Wearable Sensing and Visualization. 1025-1034
• 
  Zhen Bai, Alan F. Blackwell, George Coulouris:
  Exploring Expressive Augmented Reality: The FingAR Puppet System for Social Pretend Play. 1035-1044
• 
  Nesra Yannier, Kenneth R. Koedinger, Scott E. Hudson:
  Learning from Mixed-Reality Games: Is Shaking a Tablet as Effective as Physical Observation? 1045-1054

Motivation & Participation

• 
  Erin L. Brady, Meredith Ringel Morris, Jeffrey P. Bigham:
  Gauging Receptiveness to Social Microvolunteering. 1055-1064
• 
  Kristen K. Dergousoff, Regan L. Mandryk:
  Mobile Gamification for Crowdsourcing Data Collection: Leveraging the Freemium Model. 1065-1074
• 
  Patrick C. Shih, Victoria Bellotti, Kyungsik Han, John M. Carroll:
  Unequal Time for Unequal Value: Implications of Differing Motivations for Participation in Timebanking. 1075-1084
• 
  Victoria Bellotti, Alexander Ambard, Daniel Turner, Christina Gossmann, Kamila Demkova, John M. Carroll:
  A Muddle of Models of Motivation for Using Peer-to-Peer Economy Systems. 1085-1094

Sustainability & Recycling

• 
  Pascal Lessel, Maximilian Altmeyer, Antonio Krüger:
  Analysis of Recycling Capabilities of Individuals and Crowds to Encourage and Educate People to Separate Their Garbage Playfully. 1095-1104
• 
  Eva Ganglbauer, Geraldine Fitzpatrick, Florian Güldenpfennig:
  Why and what did we throw out?: Probing on Reflection through the Food Waste Diary. 1105-1114
• 
  William W. Gaver, Mike Michael, Tobie Kerridge, Alex Wilkie, Andy Boucher, Liliana Ovalle, Matthew Plummer-Fernandez:
  Energy Babble: Mixing Environmentally-Oriented Internet Content to Engage Community Groups. 1115-1124
•