www.cs.aau.dk - News

New adjunct professor at the Department of Computer Science

Tue, 27 Sep 2011 11:36:00 +0200

Anders L. Madsen, PhD, CEO at HUGIN EXPERT A/S has been appointed adjunct professor at the Department of Computer Science. He will give an inauguration lecture entitled: Decision Support Based on Probalistic Graphical Models ---- A Review of Applications. Time: Friday 21. October, 13.00 pm Place: Aalborg University, Department of Computer Science, Selma Lagerlöfs Vej 300, Room 02.13. Feel free to join - no registration required. See invitation Abstract:
Probabilistic graphical models such as Bayesian networks and influence diagrams are increasingly popular knowledge representations for decision support under uncertainty. Their applications have grown in size and number ever since belief update became feasible for reasonably sized models in the eighties. Now Bayesian networks and influence diagrams are being applied in a wide range of domains to support both simple and complex decisions.

The presentation starts with a short introduction to Bayesian networks and influence diagrams with a focus on knowledge representation and usage. Next I present examples of decision support applications based on Bayesian networks and influence diagrams using as examples the domains of food safety and finance. The examples include both existing applications in operation and potential new applications.

PhD.-defense by Thorsten Ottosen

Mon, 05 Sep 2011 10:28:00 +0200

In partial fulfillment of the terms for obtaining the Ph.D.-degree, Thorsten Jørgen Ottosen will give a lecture on the following subject: Solutions and Heuristics for Decision Theoretic Troubleshooting with Dependent Actions and Conditional Costs on Monday 12th of September 2011, 13.00, in room 02.13 at Selma Lagerlöfs Vej 300 Abstract and invitation

Talk on Fast sheet-defined functions in spreadsheets

Sat, 17 Sep 2011 11:09:00 +0200

Professor Peter Sestoft will give a talk on fast sheet-defined functions in spreadsheets, se abstract below. Time: August 26, 11-12 am, Department of Computer Science, Selma Lagerlöfs Vej 300, 9220 Aalborg East, Room 02.13. Title and abstract: Fast sheet-defined functions in spreadsheets Spreadsheets appeal to millions of users because they are concrete, declarative and non-iterative. However, the absence of abstraction facilities leads to models that are unwieldy, slow, error-ridden and difficult to maintain. Our goal is to allow users to define new functions within the familiar spreadsheet paradigm, without resorting to external languages such as VBA in Excel, and with performance comparable to built-in functions. We present a prototype spreadsheet implementation that achieves these goals, based on the concept of sheet-defined function. Type analysis and continuation-based compilation are used to generate efficient .NET bytecode from such sheet-defined functions at runtime. Thanks to the platform's just-in-time compiler the implementation is fast. We give several examples of useful functions definable this way. We show that higher-order and recursive sheet-defined functions have natural uses. For instance, the Goal Seek numerical equation solver, and several other built-in functions from Excel, can be user-defined in our framework. Since sheet-defined functions are declarative, they can be specialized (partially evaluated) quite easily. For the same reason, it is relatively easy to exploit the near-explicit parallelism of spreadsheet models. We mention some preliminary experiments with multicore computers and graphics processors (GPGPUs)

PhD.-defense Nadeem Iftikhar

Mon, 15 Aug 2011 10:31:00 +0200

Ph.D. Lecture In partial fulfillment of the terms for obtaining the Ph.D.-degree, Nadeem Iftikhar will give a lecture on the following subject: Flexible and Effective Aggregation and Exchange of Farming-related Data on Friday 26th of August 2011, 13.00, in room 02.13 at Selma Lagerlöfs Vej 300 Abstract and invitation

PhD.-defense by Carmen Ruiz Vicente

Mon, 15 Aug 2011 10:30:00 +0200

Ph.D. Lecture In partial fulfillment of the terms for obtaining the Ph.D.-degree, Carmen Ruiz Vicente will give a lecture on the following subject: Enabling Location-Related Privacy in Geo-Social Mobile Internet Services on Wednesday 24th of August 2011, 13.00, in room 02.13 at Selma Lagerlöfs Vej 300 Abstract and invitation

PhD-defense by Morten Goodwin

Mon, 15 Aug 2011 10:31:00 +0200

Ph.D. Lecture In partial fulfillment of the terms for obtaining the Ph.D.-degree, Morten Goodwin will give a lecture on the following subject: Towards Automated eGovernment Monitoring on Friday 12th of August 2011, 13.00, in room 02.13 at Selma Lagerlöfs Vej 300 Abstract and invitation

PhD.-defense by Kostas Tzoumas

Mon, 15 Aug 2011 10:32:00 +0200

Ph.D. Lecture In partial fulfillment of the terms for obtaining the Ph.D.-degree, Kostas Tzoumas will give a lecture on the following subject: Techniques for the Efficient Management of Non-Uniform Data and Workloads on Monday 20th of June 2011, 13.00, in room 02.13 at Selma Lagerlöfs Vej 300 Abstract and invitation