Seminar

SACHI Seminar: Subtle Gaze-Dependent Techniques for Visualising Display Changes in Multi-Display Environments, by Jakub Dostal, University of St. Andrews

Abstract:

Modern computer workstation setups regularly include multiple displays in various configurations. With such multi-monitor or multi-display setups we have reached a stage where we have more display real-estate available than we are able to comfortably attend to. This talk will present the results of an exploration of techniques for visualising display changes in multi-display environments. Apart from four subtle gaze-dependent techniques for visualising change on unattended displays, it will cover the technology used to enable quick and cost-effective deployment to workstations. An evaluation of the technology as well as the techniques themselves will be presented as well. The talk will conclude with a brief discussion on the challenges in evaluating subtle interaction techniques. Continue reading

Event details

  • When: 5th March 2013 13:00 - 14:00
  • Where: Cole 1.33a
  • Format: Seminar

Sinhalese Text Entry Research by Shyam Reyal, University of St. Andrews

More info

The Sinhalese language (which falls into the family of Indo-Aryan languages) is spoken, read and written by over 22 million users worldwide (and by almost all the citizens of Sri Lanka). The language itself is very rich and complex – with over 60 base characters + 13 vowel variations for each, and also in terms of contextual phrases and idioms, which are much more diverse than Western languages. Nevertheless, very little work has been done in terms of creating efficient, user friendly text entry mechanisms for Sinhalese, in both computers and mobile devices. As present, despite attempts to standardize input methods, no such single main-stream popular method of text entry has surfaced. Continue reading

Event details

  • When: 5th February 2013 13:00 - 14:00
  • Where: Cole 1.33a
  • Format: Seminar

Seminar by Leo Liberti on “Symmetry in Mathematical Programming”, 19th Nov, 11am

Leo Liberti, the director of the Optimisation and Sustainable Development Chair at Ecole Polytechnique, will be giving a seminar on Monday 19th November, 2012, at 11am-12, in Jack Cole 1.33a.

Symmetry in Mathematical Programming

Abstract: When solving Mathematical Programming (MP) problems (be they linear or nonlinear, continuous or mixed-integer) using Branch-and-Bound (BB), the presence of symmetries of the solution set results in BB taking longer than strictly needed, due to the symmetries induced on the BB tree. I shall illustrate a class of “symmetry breaking” methods based on reformulating the symmetric MPs so that some of the symmetric optima become infeasible. I shall show how to automatically detect MP formulation symmetries by reducing MP to graphs, and how to automatically generate reformulated MPs with (hopefully) fewer symmetric optima. Although computational tests show that reformulations may not always succeed in making BB terminate faster, they can be applied very efficiently – so they can be considered an efficient “pre-solving step” to running BB.

Event details

  • When: 19th November 2012 11:00 - 12:00
  • Where: Cole 1.33a
  • Format: Seminar

School Seminar – Mari Ostendorf

Professor Mari Ostendorf of the University of Washington is visiting
Edinburgh, Glasgow and St Andrews as part of a SICSA Distinguishing
Fellowship.

Title: Rich Speech Transcription for Spoken Document Processing

Abstract:
As storage costs drop and bandwidth increases, there has been rapid growth of spoken information available via the web or in online archives — including radio and TV broadcasts, oral histories, legislative proceedings, call center recordings, etc. — raising problems of document retrieval, information extraction, summarization and translation for spoken language. While there is a long tradition of research in these technologies for text, new challenges arise when moving from written to spoken language. In this talk, we look at differences between speech and text, and how we can leverage the information in the speech signal beyond the words to provide a rich, automatically generated transcript that better serves language processing applications. In particular, we look at how prosodic cues can be used to recognize segmentation, emphasis and intent in spoken language, and how this information can impact tasks such as topic detection, information extraction, translation, and social group analysis.

Event details

  • When: 27th November 2012 15:00 - 16:00
  • Where: Phys Theatre C
  • Format: Seminar

Distinguished Lecture Series: MySQL and Open Source Business, by Monty Widenius

Monty Widenius delivered the Semester 1 Distinguished Lecture Series on Monday 15th October 2012, from 10am to 3.30pm, in Upper College Hall.

Monty is CEO & CTO at Monty Program Ab, and is perhaps best known as founder of MySQL, the world’s most used open source.

Monty delivered three lectures on MySQL and Open Source Business.  He has kindly made the slides available – linked to from the titles.

The lectures were  introduced by the Dean of Science, Prof Al Dearle, and refreshments were provided at 11am.

These lectures were open to all.

The detailed programme is available as a pdf: Monty Widenius DLS Programme

Event details

  • When: 15th October 2012 10:00 - 15:30
  • Series: Distinguished Lectures Series
  • Format: Seminar

School Seminar – Andy Gordon

Reverend Bayes, meet Countess Lovelace: Probabilistic Programming for Machine Learning

Andrew D. Gordon, Microsoft Research and University of Edinburgh

Abstract: We propose a marriage of probabilistic functional programming with Bayesian reasoning. Infer.NET Fun turns the simple succinct syntax of F# into an executable modeling language – you can code up the conditional probability distributions of Bayes’ rule using F# array comprehensions with constraints. Write your model in F#. Run it directly to synthesize test datasets and to debug models. Or compile it with Infer.NET for efficient statistical inference. Hence, efficient algorithms for a range of regression, classification, and specialist learning tasks derive by probabilistic functional programming.

Bio: Andy Gordon is a Principal Researcher at Microsoft Research Cambridge, and is a Professor at the University of Edinburgh. Andy wrote his PhD on input/output in lazy functional programming, and is the proud inventor of Haskell’s “>>=” notation for monads. He’s worked on a range of topics in concurrency, verification, and security, never straying too far from his roots in functional programming. His current passion is deriving machine learning algorithms from F# programs.

Event details

  • When: 8th October 2012 15:00 - 16:00
  • Where: Phys Theatre C
  • Format: Seminar