Nina Valkanova - Academia.edu (original) (raw)
Papers by Nina Valkanova
Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems
International Journal of Human-Computer Studies, 2015
In the inspiring and windy journey of my doctoral research, I was fortunate to receive the suppor... more In the inspiring and windy journey of my doctoral research, I was fortunate to receive the support of many amazing people. This is an attempt to thank them. I would like to express my deepest gratitude to my supervisors, Prof. Sergi Jorda and Prof. Andrew Vande Moere for supporting this dissertation and teaching me independence and persistence in research. You both have been an inspiration for me-as persons, and as researchers. I would also like to thank Prof. Josep Blat and Dr. Ernesto Arroyo for introducing me to research in the first place and giving me guidance and freedom to find out and follow what I am passionate about. I am very grateful to Prof. Joerg Mueller who hosted me in his Mobile and Physical Interaction Lab at the Telekom Innovation Laboratories and gave me the confidence to reach higher when collaborating with his colleagues. The work conducted throughout this dissertation would not be possible without the support of friends and colleagues who provided me with timely help and creative advise, and made me learn a lot about interaction design research, as well as friendship. I deeply thank to my Barcelona family: Martin Inderbitzin, Stiliana Mitzeva, Encarni Marcos and Sytse Wierenga, and to my friends and partners in crime Robert
ABSTRACT Most of today's public displays only show predefined con-tents that passers-by a... more ABSTRACT Most of today's public displays only show predefined con-tents that passers-by are not able to change. We argue that interactive public displays would benefit from immedi-ately usable mid-air techniques for choosing options, express-ing opinions or more generally selecting one among several items. We propose a design space for hand-gesture based mid-air selection techniques on interactive public displays, along with four specific techniques that we evaluated at three different locations in the the field. Our findings include: 1) if no hint is provided, people successfully use Point+Dwell for selecting items, 2) the user representation could be switched from Mirror to Cursor after registration without causing con-fusion, 3) people tend to explore items before confirming one, 4) in a public context, people frequently interact inadvertently (without looking at the screen). We conclude by providing recommendations for designers of interactive public displays to support immediate usability for mid-air selection.
Proceedings of the 16th international conference on Human-computer interaction with mobile devices & services - MobileHCI '14, 2014
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems - CHI '13, 2013
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing - CSCW '14, 2014
We present the design and evaluation of MyPosition, a public display in the form of a large proje... more We present the design and evaluation of MyPosition, a public display in the form of a large projection, featuring an interactive poll visualization. MyPosition aims at facilitating the deliberation and comparison of individual opinions on locally relevant topics in an opportunistic and engaging way. We evaluated MyPosition in an in-the-wild study and demonstrated that the engaging nature of the installation was effective in enticing public discussion. We found that (i) the increased identifiability of users positively impacted the engagement with and the social debate around the installation, however lowered the actual voting rate; (ii) people submitted their personal opinion instead of playing around with the interactive features; and (iii) the display led to considerable discussion as well as nudging among people, in particular in zones beyond the interaction area in front of the screen.
Proceedings of The International Symposium on Pervasive Displays - PerDis '14, 2014
In this paper we introduce the notion of media architectural interfaces (MAIs), which describe th... more In this paper we introduce the notion of media architectural interfaces (MAIs), which describe the relation between users engaging with dynamic content on media façades through tangible artifacts on street level. Firstly, we outline existing research concerned with public displays, urban screens and media facades, secondly we summarize related works that explore mediated urban interactions in connection with MAIs. We report on the technical set up of a field study, in which we deployed a novel tangible user interface (TUI), called the Smart Citizen Sentiment Dashboard (SCSD). This device gives citizens the opportunity to express their mood about local urban challenges. The input from this TUI is then instantly displayed on a very large (3700 sqm) media façade. The installation ran for three weeks during a media arts festival in Sao Paulo, Brazil. During this deployment period, we were able to gather data to help us understand the relationship between passers-by, participants, the TUI and the media façade. As a result we identified emergent behavior in the immediate space around the TUI and the wider urban space. The contribution this paper makes is in highlighting challenges in the design and deployment of large-scale media architectural interfaces.
Proceedings of the 2014 companion publication on Designing interactive systems - DIS Companion '14, 2014
ABSTRACT Media façades are becoming part of our urban landscapes, challenging media artists and d... more ABSTRACT Media façades are becoming part of our urban landscapes, challenging media artists and designers to create content for them. The diversity of resolution and spatial properties of these façades hasn't stopped content creators to adapt their projects to multiple media façades with significant different resolution, shapes, surroundings and social environment. \ In this paper we introduce Puzzle Facade as an example of an urban technological intervention that has a strong connection with the spatial properties of the media façade it was conceived for, the media façade of the Ars Electronica Center.
IEEE Computer Graphics and Applications, 2000
Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems
International Journal of Human-Computer Studies, 2015
In the inspiring and windy journey of my doctoral research, I was fortunate to receive the suppor... more In the inspiring and windy journey of my doctoral research, I was fortunate to receive the support of many amazing people. This is an attempt to thank them. I would like to express my deepest gratitude to my supervisors, Prof. Sergi Jorda and Prof. Andrew Vande Moere for supporting this dissertation and teaching me independence and persistence in research. You both have been an inspiration for me-as persons, and as researchers. I would also like to thank Prof. Josep Blat and Dr. Ernesto Arroyo for introducing me to research in the first place and giving me guidance and freedom to find out and follow what I am passionate about. I am very grateful to Prof. Joerg Mueller who hosted me in his Mobile and Physical Interaction Lab at the Telekom Innovation Laboratories and gave me the confidence to reach higher when collaborating with his colleagues. The work conducted throughout this dissertation would not be possible without the support of friends and colleagues who provided me with timely help and creative advise, and made me learn a lot about interaction design research, as well as friendship. I deeply thank to my Barcelona family: Martin Inderbitzin, Stiliana Mitzeva, Encarni Marcos and Sytse Wierenga, and to my friends and partners in crime Robert
ABSTRACT Most of today's public displays only show predefined con-tents that passers-by a... more ABSTRACT Most of today's public displays only show predefined con-tents that passers-by are not able to change. We argue that interactive public displays would benefit from immedi-ately usable mid-air techniques for choosing options, express-ing opinions or more generally selecting one among several items. We propose a design space for hand-gesture based mid-air selection techniques on interactive public displays, along with four specific techniques that we evaluated at three different locations in the the field. Our findings include: 1) if no hint is provided, people successfully use Point+Dwell for selecting items, 2) the user representation could be switched from Mirror to Cursor after registration without causing con-fusion, 3) people tend to explore items before confirming one, 4) in a public context, people frequently interact inadvertently (without looking at the screen). We conclude by providing recommendations for designers of interactive public displays to support immediate usability for mid-air selection.
Proceedings of the 16th international conference on Human-computer interaction with mobile devices & services - MobileHCI '14, 2014
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems - CHI '13, 2013
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing - CSCW '14, 2014
We present the design and evaluation of MyPosition, a public display in the form of a large proje... more We present the design and evaluation of MyPosition, a public display in the form of a large projection, featuring an interactive poll visualization. MyPosition aims at facilitating the deliberation and comparison of individual opinions on locally relevant topics in an opportunistic and engaging way. We evaluated MyPosition in an in-the-wild study and demonstrated that the engaging nature of the installation was effective in enticing public discussion. We found that (i) the increased identifiability of users positively impacted the engagement with and the social debate around the installation, however lowered the actual voting rate; (ii) people submitted their personal opinion instead of playing around with the interactive features; and (iii) the display led to considerable discussion as well as nudging among people, in particular in zones beyond the interaction area in front of the screen.
Proceedings of The International Symposium on Pervasive Displays - PerDis '14, 2014
In this paper we introduce the notion of media architectural interfaces (MAIs), which describe th... more In this paper we introduce the notion of media architectural interfaces (MAIs), which describe the relation between users engaging with dynamic content on media façades through tangible artifacts on street level. Firstly, we outline existing research concerned with public displays, urban screens and media facades, secondly we summarize related works that explore mediated urban interactions in connection with MAIs. We report on the technical set up of a field study, in which we deployed a novel tangible user interface (TUI), called the Smart Citizen Sentiment Dashboard (SCSD). This device gives citizens the opportunity to express their mood about local urban challenges. The input from this TUI is then instantly displayed on a very large (3700 sqm) media façade. The installation ran for three weeks during a media arts festival in Sao Paulo, Brazil. During this deployment period, we were able to gather data to help us understand the relationship between passers-by, participants, the TUI and the media façade. As a result we identified emergent behavior in the immediate space around the TUI and the wider urban space. The contribution this paper makes is in highlighting challenges in the design and deployment of large-scale media architectural interfaces.
Proceedings of the 2014 companion publication on Designing interactive systems - DIS Companion '14, 2014
ABSTRACT Media façades are becoming part of our urban landscapes, challenging media artists and d... more ABSTRACT Media façades are becoming part of our urban landscapes, challenging media artists and designers to create content for them. The diversity of resolution and spatial properties of these façades hasn't stopped content creators to adapt their projects to multiple media façades with significant different resolution, shapes, surroundings and social environment. \ In this paper we introduce Puzzle Facade as an example of an urban technological intervention that has a strong connection with the spatial properties of the media façade it was conceived for, the media façade of the Ars Electronica Center.
IEEE Computer Graphics and Applications, 2000