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The RegularGcc Matrix Constraint (pdf)
Ronald de Haan, Nina Narodytska and Toby Walsh. Dec 2011.

Manipulating Tournaments in Cup and Round Robin Competitions (pdf)
Tyrel Russell and Toby Walsh. Technical report COMIC-2009-015, May 2009.

Where are the really hard manipulation problems? The manipulation phase transition
(pdf, legal ps, letter ps)
Toby Walsh. Technical report COMIC-2008-013, December 2008. Note: the paper appears in the IJCAI-09 proceedings with a slightly modified subtitle.

Dynamic Symmetry Breaking Constraints (pdf, legal ps, letter ps)
George Katsirelos and Toby Walsh. Technical report COMIC-2008-012, March 2008.

The Parameterized Complexity of Global Constraints (pdf, legal ps, letter ps)
Christian Bessiere, Emmanuel Hebrard, Brahim Hnich, Zeynep Kiziltan, Claude-Guy Quimper and Toby Walsh. Technical report COMIC-2008-011, March 2008. Appeared at AAAI-08.

Encodings of the SEQUENCE Constraint (pdf, legal ps, letter ps)
Sebastian Brand, Nina Narodytska, Claude-Guy Quimper, Peter Stuckey and Toby Walsh. Technical report COMIC-2007-010, May 2007. Appeard at CP-07.

Decomposing Global Grammar Constraints (pdf, legal ps, letter ps)
Claude-Guy Quimper and Toby Walsh. Technical report COMIC-2007-009, April 2007. Appeared at CP-07.

Breaking Value Symmetry (pdf, legal ps, letter ps)
Toby Walsh. Technical report COMIC-2007-008, January 2007. Appeared at CP-07.

The SLIDE Constraint (pdf, legal ps, letter ps)
Christian Bessiere, Emmanuel Hebrard, Brahim Hnich, Zeynep Kiziltan and Toby Walsh. Technical report COMIC-2006-007, July 2006.

General Symmetry Breaking Constraints (pdf, legal ps, letter ps)
Toby Walsh. Technical report COMIC-2006-006, April 2006. Appeared at CP-06.

Global Grammar Constraints (pdf, legal ps, letter ps)
Claude-Guy Quimper and Toby Walsh. Technical report COMIC-2006-005, April 2006. Appeared at CP-06.

Estimating Search Tree Size (pdf, legal ps, letter ps)
Phil Kilby, John Slaney, Sylvie Thiebaux and Toby Walsh. Technical report COMIC-2006-004, March 2006. Appeared at AAAI-06.

The Range and Roots Constraints: some applications (pdf, legal ps, letter ps)
Christian Bessiere, Emmanuel Hebrard, Brahim Hnich, Zeynep Kiziltan and Toby Walsh. Technical report COMIC-2006-003, January 2006.

Symmetry Breaking using Value Precedence (pdf, legal ps, letter ps)
Toby Walsh. Technical report COMIC-2006-002, January 2006. Appeared at ECAI-06.

The Range and Roots Constraints: Algorithms and Implementation (pdf, legal ps, letter ps)
Christian Bessiere, Emmanuel Hebrard, Brahim Hnich, Zeynep Kiziltan and Toby Walsh. Technical report COMIC-2006-001, January 2006.

Search for Satisfaction (pdf)
Ian Gent and Toby Walsh. Technical report, Department of Computer Science, University of Strathclyde, 1999.

How Not To Do It (pdf)
Ian Gent, Stuart Grant, Ewan MacIntyre, Patrick Prosser, Paul Shaw, Barabara Smith and Toby Walsh. Technical report 97.27, School of Computer Studies, University of Leeds, 1997.