SACHI Seminar – The Missing Interface: Micro Gestures on Objects for Augmented Reality Interaction
Speaker: Klen Čopič Pucihar
Abstract:
Augmented reality technology can introduce digital elements to arbitrary objects. However, these objects were never designed to incorporate the digital component, hence do not provide the necessary interface. To overcome this limitation, AR Interaction systems add sensors to objects, use additional handheld hardware or perform hand and body tracking. These methods are not optimal for direct interaction with physical objects  because they:

• require modification of existing objects,
• require the the user to hold the controller in their hand,
• are based on synthesis of captured RGB or RGB-D data streams imposing the following limitations: (i) gestures need to be  performed within the view of the camera; (ii) the gestures include reasonable large hand or finger movements (e.g. pinching the fingers, blooming gesture of opening the palm; (iii) the hand performing gesture is not occluded (e.g. cannot detect gestures if performed whilst grasping an object).

In this talk Klen will look at alternative methods which try to overcome such limitations and make inconspicuous, precise and flexible object oriented interaction possible for both augmented and mediated reality applications.
Speaker Biography

Klen Čopič Pucihar is assistant professor at the Faculty of Mathematics, Natural Sciences and Information Technologies at University of Primorska. Klen’s research vision is to look for new ways in which one could augmented, modify and mediate rich sources of visual, auditory and tactile stimuli that fabricate our everyday life experiences. The goal is to augment human abilities with new ways of using computational resources. This is important because the interface presents itself as the bottleneck between us humans and the benefit ever increasing computational resources could have on our everyday life. This makes the interfaces the core challenge for the future and the essence of Klen’s research which is currently mainly concentrated on augmented reality, mobile computing and human-computer interaction focusing on different perceptual issues that arise whilst interacting with various computer systems which lead to innovative user interface designs. Klen’s work was published as high ranked scientific publications and won him best poster award at ISMAR 2014.

Abstract:  This talk is in two parts, in the first of which Adriana will focus on her experiences in assessment and feedback in large classes, and in the second part on her work in encouraging gender diversity in computer science.
The focus of the first part will be on her involvement in redesigning an undergraduate module on HCI, where the methods of assessment used were no suitable for increasingly larger classes (up to 160 students). Redesign decisions needed to preserve the validity and reliability of the assessment whilst respecting the need for timely feedback. Adriana will specifically talk about the exam and coursework, and how learning activities in the module were aligned to the assessment, through the use of PeerWise for student-authored MCQs, and the use of video for assessment to foster creativity and application of knowledge. During the talk, there will be an opportunity for discussion on the challenges then encountered.
A (shorter) second part of the talk will present her experiences in supporting women in computing, starting with a very small-scale intervention with staff and students at her previous institution, and concluding with her engagement at the Early Career Women’s Network in St Andrews.

Title:
Instant Interaction
Abstract:
Although Mark Weiser’s original vision of “ubiquitous computing” has all but arrived due to the wide availability of smartphones, tablets and interactive screens, the envisioned ease of use is still mostly lacking. This is particularly apparent when we consider interaction and collaboration between multiple persons and their personal mobile devices. These issues can be partly mitigated by relying on cloud services for data exchange, but this approach opens up multiple other issues regarding data safety and privacy. In this talk, I will present the concept of “instant interaction”, which aims to enable ad-hoc interaction between multiple persons, their individual mobile devices, and fixed infrastructure, without requiring any prior exchange of account data or PINs. The only prerequisite for immediate interaction is physical proximity. Examples from my current research will illustrate this  concept.
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Title
Augmenting touch expressivity to improve the touch modality
Abstract
During the last decades, touch surfaces have become more and more ubiquitous. Whether on tablets, on smartphones or on laptops, touch surfaces are used by a majority of us on a daily basis. However, the limited expressivity – the different channels used to convey information to the system – of the touch modality restricts drastically the amount of features that can be controlled via touch only. For instance, a typical smartphone touchscreen only provides the absolute position of a contact on the screen, thus applications usually offer only one way to carry out tasks (which can augment user frustration or cap performances) or restrict possibilities (e.g. Photoshop on desktop offers more than 600 commands but only about 40 on smartphones and tablets). In this talk, I will present an overview of my on-going research and discuss different ways to tackle this problem, augment touch expressivity and user efficiency: from tools that helps better designing touch interfaces to the use of new input dimensions in original interaction techniques.
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Title:
Visualization and Taxonomy
Abstract:
This talk will consider the relationship between visualization and taxonomy from two perspectives. Firstly, how visualization can aid understanding the process of taxonomy, specifically biological taxonomy and the visualization challenges this poses. Secondly, the role of taxonomy in understanding and making sense of the growing field of visualization will be discussed and the challenges facing the visualization community in making this process more rigorous will be considered.
Speaker Bio:
Jessie joined Edinburgh Napier University in 1986 as a lecturer, was promoted to Senior Lecturer, Reader, and then Professor in 2000 Thereafter she held the post of Director of the Institute for Informatics and Digital Innovation from 2010-14 and is currently Dean of Research and Innovation for the University.
Jessie has published widely, with over 100 peer-reviewed publications and over £2 million in research funding from a range of bodies, including EPSRC, BBSRC, National Science Foundation, and KTP, and has had 13 PhD students complete. She has been programme chair, programme committee member and organiser of many international conferences, a reviewer and panel member for many national and international computer science funding bodies, and became a Member of EPSRC Peer Review College in 1996 and a Fellow of the British Computer Society.
Jessie has a long-standing record of contribution to inter-disciplinary research, working to further biological research through the application of novel computing technology.
Her research in the areas of user interfaces to databases and data visualisation in biology contributed to the establishment of the field of biological visualisation. She hosted the first biological visualisation workshop at the Royal Society of Edinburgh in 2008, was an invited speaker at a BBSRC workshop on Challenges in Biological Visualisation in 2010, was a founding member of the International Symposium in Biological Visualisation – being Programme Chair in 2011, General Chair in 2012 and 2013 – and steering committee member since 2014.
She has been keynote speaker at related international conferences and workshops, such as VIZBI, the International Visualisation conference and BioIT World, and is currently leading a BBSRC network on biological visualisation.
Her research in collaboration with taxonomists at the Royal Botanic Gardens, Edinburgh, produced a data model for representing differing taxonomic opinions in Linnaean classification. This work led to collaboration on a large USA-funded project with ecologists from six US universities and resulted in a data standard for the exchange biodiversity data that has been adopted by major global taxonomic and biodiversity organisations.

Title:  How to Closely Read a Topic Model: Visualizing the Poetry of Emily Dickinson
Biography:  Jonathan Armosa is a Doctoral Fellow at New York University (NYU).  Jonathan’s research is in the area of Digital Humanities and focuses on Computational Modelling of Literature and Information Visualization.  MORE

Please note that this seminar is confirmed for Purdie C on Wednesday October 4th between 14:00 and 15:00
Title: New file metaphors for a networked world
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Please note that this seminar will now take place in Jack Cole 1.33A on Wednesday 5th July between 15:00 and 16:00
Title: Between Exploration and Explanation: Visualizations for Insights, Curiosity, and Storytelling.
Abstract: This talk presents a set of interactive visualizations for exploration and recent work in how to communicate insights through data-driven stories. In particular, I will present work on visualizing networks including an open-source online platform. Then, I will discuss comics as an approach to communicate not only changes in temporal data but to weave narration, textual explanations, and data visualizations. The questions raised by the talk are about effective ways to engage a larger audience in understanding, learning, and use of visualizations for exploration and communication. As visualizations are becoming more and more commonplace and familiar to people, we can see more and more aspects of our daily lives being potentially enriched with information presented visually. Eventually, I want to raise the question of which role novel technology such as Augmented and Virtual Reality can play in exploring, communicating, and interacting with visualizations.
Biography: Benjamin is a Lecturer in Design Informatics and Visualization at the University of Edinburgh. His research designs and investigates interactive information visualizations to help people explore, present, and understand information hidden in data. He focuses on the visualization of dynamic networks (e.g., social networks, brain connectivity networks), as well as temporal data (e.g., changes in videos and Wikipedia articles, events on timelines), comics for storytelling with visualizations, as well as visualization and interaction in Augmented and Virtual Reality. Before joining the University of Edinburgh in 2017, Benjamin worked as a postdoc at Harvard University, Monash University, as well as the Microsoft-Research Inria Joint Centre. Benjamin was visiting researcher at the University of Washington and Microsoft Research in 2015. He obtained his PhD in 2014 from the Université Paris Sud where he worked at the Aviz Group at Inria.

Title:  Finding What to Read: Visual Text Analytics Tools and Techniques to Guide Investigation
Abstract:  Text is one of the most prominent forms of open data available, from social media to legal cases. Text visualizations are often critiqued for not being useful, for being unstructured and presenting data out of context (think: word clouds). I argue that we should not expect them to be a replacement for reading. In this talk I will briefly discuss the close/distant reading debate then focus on where I think text visualization can be useful: hypothesis generation and guiding investigation. Text visualization can help someone form questions about a large text collection, then drill down to investigate through targeted reading of the underlying source texts. Over the past 10 years my research focus has been primarily on creating techniques and systems for text analytics using visualization, across domains as diverse as legal studies, poetics, social media, and automotive safety.  I will review several of my past projects with particular attention to the capabilities and limitations of the technologies and tools we used, how we use semantics to structure visualizations, and the importance of providing interactive links to the source materials. In addition, I will discuss the design challenges which, while common across visualization, are particularly important with text (legibility, label fitting, finding appropriate levels of ‘zoom’).
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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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