SRG Seminar: “Efficient Cross-architecture Hardware Virtualisation” by Tom Spink

Virtualisation is a powerful tool used for the isolation, partitioning, and sharing of physical computing resources. Employed heavily in data centres, becoming increasingly popular in industrial settings, and used by home-users for running alternative operating systems, hardware virtualisation has seen a lot of attention from hardware and software developers over the last ten?fifteen years.

From the hardware side, this takes the form of so-called hardware assisted virtualisation, and appears in technologies such as Intel-VT, AMD-V and ARM Virtualization Extensions. However, most forms of hardware virtualisation are typically same-architecture virtualisation, where virtual versions of the host physical machine are created, providing very fast isolated instances of the physical machine, in which entire operating systems can be booted. But, there is a distinct lack of hardware support for cross-architecture virtualisation, where the guest machine architecture is different to the host.

I will talk about my research in this area, and describe the cross-architecture virtualisation hypervisor Captive that can boot unmodified guest operating systems, compiled for one architecture in the virtual machine of another.

I will talk about the challenges of full system simulation (such as memory, instruction, and device emulation), our approaches to this, and how we can efficiently map guest behaviour to host behaviour.

Finally, I will discuss our plans for open-sourcing the hypervisor, the work we are currently doing and what future work we have planned.

Event details

  • When: 11th October 2018 13:00 - 14:00
  • Where: Cole 1.33b
  • Series: Systems Seminars Series
  • Format: Seminar, Talk

School Seminar – Professor Anirudha Joshi: The story of Swarachakra – Cracking the puzzle of text input in Indian languages

Title: The story of Swarachakra – Cracking the puzzle of text input in Indian languages

Abstract: There was a time when text input in Indian languages was called a ‘puzzle’. People found it so difficult that became a barrier that prevented them from using most other technology products, from doing common tasks such as searching the web or saving a contact. As a result, Indians typed very little in their own languages. The Roman script (in which we write English) is an Alphabet. In contrast, a large majority of Indian scripts are Abugidas – a different type of scripts. In our lab, we were convinced that we need different solutions – what works for Alphabets may not work for Abugidas. Over the years we explored several designs. Our early solutions were for desktop computers. Later we developed concepts for the feature phones. We tried several creative ideas and made prototypes. We got interesting results in the lab. We published papers and case studies. But beyond that, we could not reach out and make a difference to the end-users. Then smartphones arrived, and quickly became popular. It became relatively easier to develop and deploy keyboards. Again, we tried several ideas. One solution stood out in comparison with others. We called it “Swarachakra”. Today, Swarachakra is available for 12 Indian languages and has been downloaded by about 4 million users. What was the problem, and how was it solved? And what challenges remain? Come to the talk to find out.

Speaker biography: Anirudha Joshi is professor in the interaction design stream in the IDC School of Design, IIT Bombay, India, though currently he is on a sabbatical, visiting universities in the UK. His specialises in design of interactive products for emergent users in developing economies. He has worked in diverse domains including healthcare, literacy, Indian language text input, banking, education, industrial equipment, and FMCG packaging. Anirudha also works in the area of integrating HCI activities with software engineering processes. He has developed process models, tools, and metrics to help HCI practitioners deliver a better user experience. Anirudha is active with HCI communities in India and outside. He has chaired in various roles in several conferences including India HCI, INTERACT and CHI. Since 2007, he represents India on IFIP TC13. He is the founding director of HCI Professionals Association of India since 2013. Since 2015 he is the Liaison for India for the ACM SIGCHI Asian Development Committee. Since 2016, he has been the VP Finance of the ACM SIGCHI Executive Committee. Anirudha has diverse backgrounds. He is a BTech (1989) in Electrical Engineering, an MDes (1992), in Visual Communication Design, and a PhD (2011) in Computer Science and Engineering, all from IIT Bombay.

Event details

  • When: 29th October 2018 15:00 - 16:00
  • Where: Cole 1.33a
  • Format: Seminar

School Seminar – Professor Patrick Olivier – Digital Civics: Infrastructuring Participatory Citizenship

Title:  Digital Civics: Infrastructuring Participatory Citizenship

Abstract:  Firstly, this is not technical talk, its a talk about a research initiative in “Digital Civics” that Open Lab is undertaking primarily with partners in the North East of England, but also nationally and internationally. Digital Civics proposes the use of digital technologies in the provision of relational models of public services, that is, models that take as a starting point the potential of digital technologies to support citizen-focused sharing of knowledge, experience and resources. By framing government as more than simply the provider of uniform and mechanistic services, digital civics aims to leverage technology to foster environments in which local agents (e.g. charities, local businesses, citizens) are able to solve problems together. Digital Civics research is inherently cross-disciplinary, action-oriented and place-based, and this requires us (as academic researchers) to configure ourselves differently to the communities with whom we conduct our research. In this talk I will be describing examples of our digital civics research, from applications in community engagement and education to public health and social justice, as well as the trajectory and pragmatics of the overall endeavour.

Speaker biography:  Patrick Olivier is Professor of Human-Computer Interaction in the School of Computing, Newcastle University, UK. He founded and leads Open Lab, Newcastle University’s centre for cross-disciplinary research in digital technologies. His research interests span interaction design, social computing and ubiquitous computing, particularly in public service and civic application contexts (education, public health and social justice). He is director of the EPSRC Centre for Doctoral Training in Digital Civics (55 cross-disciplinary PhD students) and the EPSRC Digital Economy Research Centre (a multidisciplinary five-year project involving 25 postdocs).

Google scholar:

https://scholar.google.co.uk/citations?hl=en&user=CUu9heMAAAAJ

ORCID:

https://orcid.org/0000-0003-2841-7580

Open Lab:

https://openlab.ncl.ac.uk/

Digital Civics:

https://digitalcivics.io/

Event details

  • When: 18th October 2018 14:00 - 15:00
  • Where: Cole 1.33a
  • Format: Seminar

An Academic’s Observations from a Sabbatical at Google

Professor Adam Barker is featured in this month’s Communications of the ACM Magazine (CACM) discussing his recent Visiting Faculty appointment at Google. The Viewpoints article summarises his experiences working in software engineering on the Borgmaster team, and some of the core lessons which can be brought back to academia.

Borg is Google’s cluster management framework, which runs hundreds of thousands of jobs, across a number of clusters each with up to tens of thousands of machines.

National University of Singapore

Professor Aaron Quigley has been appointed a Visiting Senior Research Fellow in the Smart Systems Institute in the National University of Singapore. As part of his next sabbatical Aaron will spend 6 months in the Creating Unique Technology for Everyone (CUTE) centre in Singapore [Video]. He will be collaborating with researchers there on next generation interfaces, discreet computing and new forms of interaction. The research and lessons learnt will help advance the field of HCI and will be incorporated in future teaching and research here in St Andrews.

Science and Innovation mission to Japan

Sue Kinoshita, Minister Counsellor economic affairs and Professor Quigley

This week Professor Quigley joined a mission to Japan with other academics from the University of Oxford, Edinburgh, UCL and Manchester. The week long event was organised by the UK’s Science and Innovation team in Japan, part of the Foreign and Commonwealth Office. Over five days the delegation visited and presented at seven companies along with three seminars and workshops. Across nine presentations Professor Quigley presented to hundreds of people and introduced some of the Human Computer Interaction research in SACHI, along with research from the AI research group. This mission has the goal to strengthen research collaboration and innovation partnership between the UK and Japan.

During his talks, Aaron provided examples from our engineering doctorate program, our MSc program, work on research interns, PhD students and academics from across Computer Science.

 

Sethu Vijayakumar, Edinburgh University, Sue Kinoshita, Minister Counsellor economic affairs, Professor Aaron Quigley, Seiichi Asano, Senior science Officer and Joesph Robertson, Science & Innovation Officer.

Griff Jones, First Secretary, science innovation & global challenges, Sethu Vijayakumar, Edinburgh University, Sue Kinoshita, Minister Counsellor economic affairs, Professor Aaron Quigley, Seiichi Asano, Senior science Officer and Joesph Robertson, Science & Innovation Officer.

Global Human Computer Interaction at World Usability Day Estonia

Professor Quigley will be a distinguished speaker at the World Usability Day in Tallinn, Estonia this November as part of the ACM DSP. Aaron was appointed to the Distinguished Speaker Program (DSP) of the Association for Computing Machinery (ACM) earlier this year. The DSP brings together international thought leaders from academia, industry, and government.

In Estonia, Aaron will present a talk on Global Human Computer Interaction. This is the study of HCI when considering global challenges, languages, concerns, cultures and different economic drivers. This talk explores new technologies and the next generation of interfaces beyond the desktop, in a global context. The World Usability Day was founded by the User Experience Professionals Association (UXPA) and the theme for 2018 is “Design for Good or Evil”. It brings together UX professionals and the topics range from usability to user experience, and innovative technologies to studies in human computer interaction.

SACHI Seminar: Alessio Malizia – User Experience: a step towards Natural User Interfaces.

Title: User Experience: a step towards Natural User Interfaces.

Abstract: The road to natural interfaces is still long and we are now witnessing an artificial naturality. These interfaces are natural, in the sense they employ hand gestures, but they are also artificial, because the system designer imposes the set of gestures. In this lecture we will explore together the benefits and issues of Natural User Interfaces.

Speaker biography: Alessio Malizia is a Professor of UX Design at the University of Hertfordshire and a distinguished speaker of the ACM (the international Association for Computer Machinery); he lives in London but is a “global soul” and has been living in Italy, Spain and US. He is the son of a blacksmith, but thereafter all pretensions of manual skills end. Prof. Malizia began his career as a bearded computer scientist at Sapienza – University of Rome and then, after an industrial experience in IBM and Silicon Graphics, moved on with a career in research. He was visiting researcher at the Xerox PARC where he was appreciated for his skills in neural networks (Multilayer Perceptrons) and as peanut butter and chocolate biscuits eater. He worked as Senior Lecturer at Brunel University London and as Associate Professor (and Spanish tapas aficionado) at the University Carlos III of Madrid. Prof Malizia’s research and teaching interests focus on Human-Centred Systems.

He is interested in the design of Ubiquitous Interactive Systems with a special focus on the End-User Development community. He is particularly interested in systems where the physical and digital become seamlessly intertwined producing a new hybrid landscape and the study of problems arising from designing such complex hybrid environments involving collaboration of various disciplines and stakeholders. In his role at the School of Creative Arts at University of Hertfordshire, he is keen to develop novel approaches and attract funding for improving methods to design almost invisible interfaces embedded in a physical environment naturally exploited by users’ innate interaction modalities.

Event details

  • When: 7th June 2018 14:00 - 15:00
  • Where: Cole 1.33a
  • Format: Seminar

SRG Seminar: “Application of Bayesian Nonparametric in household human activity recognition” by Lei Fang

Abstract

In this talk, I will talk about the possibility of using Bayesian nonparametric clustering, or Dirichlet Process Mixture model to solve human activity recognition problem. In particular, I will discuss how the technique can be useful when the activity labels are not annotated and/or the activity evolves over the time. This initial study is built on an existing work on using directional statistical models (von Mises-Fisher) distribution, called Hierarchical Mixture of Conditional Independent von Mises Fisher distribution (HMCIvMFs), for unknown events detection and learning. Markov chain Monte Carlo sampling based learning algorithm will be presented together with some initial experiment results.

Event details

  • When: 12th April 2018 13:00 - 14:00
  • Where: Cole 1.33b
  • Series: Systems Seminars Series
  • Format: Seminar