We have a SACHI seminar on Monday 12th June 2017 which will be given by two speakers, presenting two connected talks within the normal hour slot.
The speakers are Dr Oliver Schneider from the Hasso Plattner Institute in Potsdam, Germany and Professor Karon MacLean who is Professor of Computer Science at the University of British Columbia, Canada.
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When:  Thursday June 15th
Where:  Maths Seminar Room 2
Time:  14:00 – 15:00
Title:  New Approaches to Mode-Switching
Abstract:  The fundamental unit of all interaction is issuing commands, and the trickiest types of commands are those that control “modes” — different ways to map the same input to different application actions. For example, the current mode in a tablet drawing app could determine if the exact same sequence of touch movements draws a line, pans the canvas, makes a marquee selection, or issues a gestural command. Switching between modes like these are frequent, so finding optimum mode-switching methods is important.  In this talk, I survey my group’s work to understand and improve mode-switching and command selection for different input types and device form factors. These include: Pin-and-Cross, a touch overloading technique combining static touches with nearby crossing selection; Conté, a pen-like input device that leverages small changes in contact geometry; Doppio, a reconfigurable two-faced smartwatch for tangible input; and Gunslinger, a mid-air interaction technique using bare hand postures and gestures performed in a relaxed arms-down position.
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When: Tuesday 30th May, 14:00 to 15:00
Where: Jack Cole room 1.33A
Title:  Internet services, energy demand and everyday life
Abstract:  Over the last decade, the growth in data traffic across the Internet has been dramatic, and forecasts predict a similar ongoing pattern. Since this is associated with remarkable electricity consumption (about 10% globally, and rising), such a trend is significant to efforts to reduce carbon emissions.  This calls for careful attention to the nature of these trends, as levels of Internet electricity demand become ever more directly and explicitly problematic.  Based on a host of prior literature and two field studies, this talk explores what we know about the energy intensity of digital stuff, and the growth of Internet traffic.  It considers how such traffic can be attributed to different Internet services like video streaming or social networking, and how these link to everyday practices which draw upon and generate data online.
Biography:  Dr Mike Hazas is a Senior Lecturer at Lancaster University, who works at the confluence of human-computer interaction and social science. His research combines qualitative and quantitative methods to understand everyday practices and technologies, how they can be related to carbon emissions and energy demand, and more sustainable trajectories. Mike co-directs the multidisciplinary Socio-Digital Sustainability group at Lancaster, and has served as a chair of the CHI Specific Application Areas subcommittee for the last three years.  Mike is a co-investigator in the DEMAND Centre (EPSRC, 2013-2018) which is concerned with the relationship of social practices and energy demand.

When: Tuesday 11th April
Time: 14:00 – 15:00
Where: Cole 1.33A
Title: Co-Designed, Collocated & Playful Mobile Interactions
Abstract: Mobile devices such as smartphones and tablets were originally conceived and have traditionally been utilized for individual use. Research on mobile collocated interactions has explored situations in which collocated users engage in collaborative activities using their mobile devices, thus going from personal/individual toward shared/multiuser experiences and interactions.
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When: Monday 3rd April 2017, 14:00 – 15:00
Where: Jack Cole 1.33a
Title: Social interaction characteristics for socially acceptable robots
Abstract: The last decade has seen fast advances in Social Robotic Technology. Social Robots start to be successfully used as robot companions and as therapeutic aids. In both of these cases the robots need to be able to interact intuitively and comfortably with their human users in close physical proximity.
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Title:  An argumentation-based approach to facilitate and improve human reasoning.
Abstract:  The ability of understanding and reasoning about different alternatives for a decision is fundamental for making informed choices. Intelligent autonomous systems have the potential to improve the quality of human-decision making but the use of such systems may be hampered by human difficulties to interact and trust their outputs.
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Title:  The design of digital technologies to support transitional events in the human lifespan
Abstract:  This talk will focus on (i) qualitative research undertaken to understand how digital technologies are being used during transitional periods across the human lifespan, such as becoming an adult, romantic breakup, and end of life, and (ii) the opportunities for technology design that have emerged as a result. Areas of focus include presentation of self online, group social norms, and the problematic nature of ‘ownership’ of digital materials.
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Title:  The Collaborative Design of Tangible Interactions in Museums
Abstract:  Interactive technology for cultural heritage has long been a subject of study for Human-Computer Interaction. Findings from a number of studies suggest that, however, technology can sometime distance visitors from heritage holdings rather than enabling people to establish deeper connections to what they see. Furthermore, the introduction of innovative interactive installations in museum is often seen as an interesting novelty but seldom leads to substantive change in how a museum approaches visitor engagement. This talk will discuss work on the EU project “meSch” (Material EncounterS with Digital Cultural Heritage) aimed at creating a do-it-yourself platform for cultural heritage professionals to design interactive tangible computing installations that bridge the gap between digital content and the materiality of museum objects and exhibits. The project has adopted a collaborative design approach throughout, involving cultural heritage professionals, designers, developers and social scientist. The talk will feature key examples of how collaboration unfolded and relevant lessons learned, particularly regarding the shared envisioning of tangible interaction concepts at a variety of heritage sites including archaeology and art museums, hands-on exploration centres and outdoor historical sites.
Biography:  Dr. Luigina Ciolfi is Reader in Communication at Sheffield Hallam University. She holds a Laurea (Univ. of Siena, Italy) and a PhD (Univ. of Limerick, Ireland) in Human-Computer Interaction. Her research focuses on understanding and designing for human situated practices mediated by technology in both work and leisure settings, particularly focusing on participation and collaboration in design. She has worked on numerous international research projects on heritage technologies, nomadic work and interaction in public spaces. She is the author of over 80 peer-reviewed publications, has been an invited speaker in ten countries, and has advised on research policy around digital technologies and cultural heritage for several European countries. Dr. Ciolfi serves in a number of scientific committees for international conferences and journals, including ACM CHI, ACM CSCW, ACM GROUP, ECSCW, COOP and the CSCW Journal. She is a member of the EUSSET (The European Society for Socially Embedded Technologies) and of the ACM CSCW Steering Groups.  Dr. Ciolfi is a senior member of the ACM. Full information on her work can be found at http://luiginaciolfi.com

Title: Control Theoretical Models of Pointing
Speaker: Rod Murray-Smith, University of Glasgow
http://www.dcs.gla.ac.uk/~rod/
Abstract: I will talk about two topics:
1. (Joint work with Jörg Müller & Antti Oulasvirta) I will present an empirical comparison of four models from manual control theory on their ability to model targetting behaviour by human users using a mouse: McRuer’s Crossover, Costello’s Surge, second-order lag (2OL), and the Bang-bang model. Such dynamic models are generative, estimating not only movement time, but also pointer position, velocity, and acceleration on a moment-to-moment basis. We describe an experimental framework for acquiring pointing actions and automatically fitting the parameters of mathematical models to the empirical data. We present the use of time-series, phase space and Hooke plot visualisations of the experimental data, to gain insight into human pointing dynamics. We find that the identified control models can generate a range of dynamic behaviours that captures aspects of human pointing behaviour to varying degrees. Conditions with a low index of difficulty (ID) showed poorer fit because their unconstrained nature leads naturally to more dynamic variability. We report on characteristics of human surge behaviour in pointing. We describe trade-offs among the models. We conclude that control theory offers a promising complement to Fitts’ law based approaches in HCI, with models providing representations and predictions of human pointing dynamics which can improve our understanding of pointing and inform design.
2. Casual control. How and why we can design systems to work at a range of levels of engagement.
Biography: Roderick Murray-Smith is a Professor of Computing Science at Glasgow University, in the “Inference, Dynamics and Interaction” research group and the Head of the Information, Data and Analysis Section. He works in the overlap between machine learning, interaction design and control theory. In recent years his research has included multimodal sensor-based interaction with mobile devices, mobile spatial interaction, Brain-Computer interaction and nonparametric machine learning. Prior to this he held positions at the Hamilton Institute, NUIM, Technical University of Denmark, M.I.T., and Daimler-Benz Research, Berlin, and was the Director of SICSA, the Scottish Informatics and Computing Science Alliance. He works closely with the mobile phone industry, having worked together with Nokia, Samsung, FT/Orange, Microsoft and Bang & Olufsen. He was a member of Nokia’s Scientific Advisory Board and is a member of the Scientific Advisory Board for the Finnish Centre of Excellence in Computational Inference Research. He has co-authored three edited volumes, 22 journal papers, 16 book chapters, and 88 conference papers.

Title: Designing Real-time Interactions Using Machine Learning
Abstract: Supervised learning algorithms can be understood not only as a set of techniques for building accurate models of data, but also as design tools that can enable rapid prototyping, iterative refinement, and embodied engagement— all activities that are crucial in the design of new musical instruments and other embodied interactions. Realising the creative potential of these algorithms requires a rethinking of the interfaces through which people provide data and build models, providing for tight interaction-feedback loops and efficient mechanisms for people to steer and explore algorithm behaviours.
In this talk, I will discuss my research on better enabling composers, musicians, and developers to employ supervised learning in the design of new real-time systems. I will show a live demo of tools that I have created for this purpose, centering around the Wekinator software toolkit for interactive machine learning. I’ll discuss some of the outcomes from 7 years of creating machine learning-based tools and observing people using these tools in creative contexts. These outcomes include a better understanding how machine learning can be used as a tool for design by end users and developers, and how using machine learning as a design tool differs from more conventional application contexts.
Biography: Dr. Rebecca Fiebrink is a Lecturer at Goldsmiths, University of London. Her research focuses on designing new ways for humans to interact with computers in creative practice, including on the use of machine learning as a creative tool. Fiebrink is the developer of the Wekinator system for real-time interactive machine learning (with a new version just released in 2015!), a co-creator of the Digital Fauvel platform for interactive musicology, and a Co-I on the £1.6M Horizon 2020-funded RAPID-MIX project on Real-time Adaptive Prototyping for Industrial Design of Multimodal Expressive Technology. She is the creator of a MOOC titled “Machine Learning for Artists and Musicians,” which launched in 2016 on the Kadenze platform. She was previously an Assistant Professor at Princeton University, where she co-directed the Princeton Laptop Orchestra. She has worked with companies including Microsoft Research, Sun Microsystems Research Labs, Imagine Research, and Smule, where she helped to build the #1 iTunes app “I am T-Pain.” She holds a PhD in Computer Science from Princeton University.