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4C Anniversary Celebration

CP 2012 in Quebec City

I was a co-author for three papers in this year's CP conference. Nicolas and myself had a paper in the technical track of the conference, describing our Model Seeker tool. Model Seeker Presentation Poster

The second paper describes our (Deepak Mehta, Barry O'Sullivan and myself) solution to the ROADEF/EURO challenge of this year. Our team, S38, came second overall, with a specific constraint based approach implementing a large neighborhood search. This paper was in the application track of the conference. Machine Reassignment Presentation Poster

The third paper was in the multi-disciplinary track of the conference. It is about energy price aware scheduling, combining machine learning for the prediction of the energy price in Ireland, and optimization for a scheduling problem. This joint work with Georgiana Ifrim and Barry O'Sullivan. Energy Price Presentation Poster

In another part of the conference was a panel on future research directions for Constraint Programming. I helped to put a position paper together, the other authors are Nicolas Beldiceanu, Pierre Flener, Jean-Noel Monette and Justin Person from the Ecole des Mines de Nantes and from Uppsala University. Poster

Constraints Journal

International Symposium on Mathematical Programming (ISMP 2012) in Berlin

There will be more on the ModelSeeker next week at the CoCoMile2012 workshop of ECAI2012 and at CP2012 in Quebec.

CP-AI-OR 2012 in Nantes

I gave an invited talk on optimization with variable energy prices (abstract) at the conference. The slides are here. All presentations at the conference were recorded and are available as videos in itunes. A link to the list of talks is here.

CP 2011 in Perugia

CP 2011 - Day 4

CP 2011 - Day 3

CP 2011 - Day 2

CP 2011 - Day 1

Images from Perugia

Freuderfest

The slides from my presentation are here.

ModRef 2011

Nicolas and myself have been working on an extension of the Constraint Seeker for automated modelling of problems from examples. A description of our first attempt is in this paper.

Paper in the Main Conference Program

AICS

A Constraint Seeker

CP-AI-OR 2011, in Berlin

Irish Collegiate Programming Contest 2011

CSCLP 2010 in Berlin

Barry and myself reported on the Almost Square Packing Problem (Presentation), a variant of the square packing problem we looked at in our CP2008 paper.

ICTAI 2010 in Arras

CP2010 Conference in St. Andrews

CROCS 2010

ModRef 2010

CRAGS 2010

ACP Executive Committee

CP-Viz

Blog

I've started a blog on constraint applications.

Computational Sustainability, June 28-30, 2010, Boston, MA

S4 Envisa Colloquium, June 21/22, 2010, Cork, Ireland

CP-AI-OR 2010 Workshops, June 15th, 2010, Bologna, Italy

CP-VIZ: An Open Source Visualization Platform for CP (Presentation) (Abstract) with P. Davern in "Open Source Tools for Constraint Programming and Mathematical Programming"

Sixiemes Journees Francophones de Programmation par Contraintes JFPC 2010, June 9-11, 2010, Caen, France

SAIS/SweConsNet, May 20/21, 2010, Uppsala, Sweden

VIZ - A Generic Constraint Visualization Tool (Presentation) with P. Davern, presented at the SweConsNet Meeting 2010

New Papers

A Resource Cost Aware Cumulative with Tarik Hadzic

1st Annual Irish Collegiate Programming Contest

UCC Boole Lecture 2009: Peter Norvig

CP 2009, Lisbon, September 2009

SYMCON 09 - Ninth International Workshop on Symmetry and Constraint Satisfaction Problems (CP2009)

SPARK 09 - Scheduling and Applications Workshop (ICAPS 2009), September 2009

Association for Constraint Programming Summer School 2009

This is a self-study course on constraint programming using the ECLiPSe language. The course consists of video lectures, slides, handouts and other material. The slides have been updated for the course, the video lectures are not using the latest slide versions.

CSCLP 2009, Barcelona, June 2009

Solving the Static Design Routing and Wavelength Assignment Problem Presentation (PDF)

Shikaku as a Constraint Problem Presentation (PDF)

CP-AI-OR 2009 Masterclass: Modelling in Constraint Programming

CP-AI-OR 2009, Pittsburgh, May 2009

Algodec Doctoral School

Others

Pictures from CP2008	Sydney, Australia	Index Sheet
Search Strategies for Rectangle Packing.	H. Simonis and B. O'Sullivan. CP 2008 Application Track.	Download PDF	Slides	Watch the Trailer!
Kakuro as a Constraint Problem	MODREF08, Sydney Australia, September 2008	Download PDF	Slides

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