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ORCIDChristopher Jefferson
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2020 – today
- 2023
[j18]Christopher Jefferson
, Rebecca Waldecker, Wilf A. Wilson:
Perfect refiners for permutation group backtracking algorithms. J. Symb. Comput. 114: 18-36 (2023)- [c39]Özgür Akgün, Alan M. Frisch, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Conjure: Automatic Generation of Constraint Models from Problem Specifications (Extended Abstract). IJCAI 2023: 6833-6838 - [i11]Ruth Hoffmann, Özgür Akgün, Christopher Jefferson:
Composable Constraint Models for Permutation Enumeration. CoRR abs/2311.17581 (2023) - 2022
- [j17]Özgür Akgün, Alan M. Frisch, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Conjure: Automatic Generation of Constraint Models from Problem Specifications. Artif. Intell. 310: 103751 (2022) - [j16]Mun See Chang, Christopher Jefferson:
Disjoint direct product decompositions of permutation groups. J. Symb. Comput. 108: 1-16 (2022) - [i10]Özgür Akgün, Ian P. Gent, Christopher Jefferson, Zeynep Kiziltan, Ian Miguel, Peter Nightingale, András Z. Salamon, Felix Ulrich-Oltean:
Automatic Tabulation in Constraint Models. CoRR abs/2202.13250 (2022) - 2021
- [j15]Sophie Huczynska, Christopher Jefferson, Silvia Nepsinská:
Strong external difference families in abelian and non-abelian groups. Cryptogr. Commun. 13(2): 331-341 (2021) - [j14]Mohamed Barakat, Reimer Behrends, Christopher Jefferson, Lukas Kühne, Martin Leuner:
On the Generation of Rank 3 Simple Matroids with an Application to Terao's Freeness Conjecture. SIAM J. Discret. Math. 35(2): 1201-1223 (2021) - [c38]Özgür Akgün, Jessica A. Enright, Christopher Jefferson, Ciaran McCreesh, Patrick Prosser, Steffen Zschaler:
Finding Subgraphs with Side Constraints. CPAIOR 2021: 348-364 - [c37]Joan Espasa, Ian P. Gent, Ruth Hoffmann, Christopher Jefferson, Matthew J. McIlree, Alice M. Lynch:
Explaining Pen and Paper Puzzles with MUSes? SICSA XAI 2021: 56-63 - [i9]Joan Espasa, Ian P. Gent, Ruth Hoffmann, Christopher Jefferson, Alice M. Lynch:
Using Small MUSes to Explain How to Solve Pen and Paper Puzzles. CoRR abs/2104.15040 (2021) - [i8]Özgür Akgün, Alan M. Frisch, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale, András Z. Salamon:
Towards Reformulating Essence Specifications for Robustness. CoRR abs/2111.00821 (2021)
2010 – 2019
- 2019
- [j13]Christopher Jefferson, Markus Pfeiffer, Rebecca Waldecker:
New refiners for permutation group search. J. Symb. Comput. 92: 70-92 (2019) - [c36]Saad Attieh, Nguyen Dang, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Athanor: High-Level Local Search Over Abstract Constraint Specifications in Essence. IJCAI 2019: 1056-1063 - 2018
- [c35]Özgür Akgün, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale, András Z. Salamon:
Automatic Discovery and Exploitation of Promising Subproblems for Tabulation. CP 2018: 3-12 - [c34]Özgür Akgün, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Metamorphic Testing of Constraint Solvers. CP 2018: 727-736 - [c33]Özgür Akgün, Saad Attieh, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale, András Z. Salamon, Patrick Spracklen, James Wetter:
A Framework for Constraint Based Local Search using Essence. IJCAI 2018: 1242-1248 - [c32]Ian P. Gent, Christopher Jefferson, Peter Nightingale:
Complexity of n-Queens Completion (Extended Abstract). IJCAI 2018: 5608-5611 - 2017
- [j12]Peter Nightingale, Özgür Akgün, Ian P. Gent, Christopher Jefferson, Ian Miguel, Patrick Spracklen:
Automatically improving constraint models in Savile Row. Artif. Intell. 251: 35-61 (2017) - [j11]Ian P. Gent, Christopher Jefferson, Peter Nightingale:
Complexity of n-Queens Completion. J. Artif. Intell. Res. 59: 815-848 (2017) - [i7]Christopher Jefferson, Eliza Jonauskyte, Markus Pfeiffer, Rebecca Waldecker:
Minimal and Canonical Images. CoRR abs/1703.00197 (2017) - [i6]Christopher Jefferson, Markus Pfeiffer, Rebecca Waldecker:
Orbital Graphs. CoRR abs/1703.04272 (2017) - 2016
- [c31]Özgür Akgün, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Exploiting Short Supports for Improved Encoding of Arbitrary Constraints into SAT. CP 2016: 3-12 - [c30]David A. Cohen, Christopher Jefferson, Karen E. Petrie:
A Theoretical Framework for Constraint Propagator Triggering. SOCS 2016: 19-27 - [i5]Christopher Jefferson, Markus Pfeiffer, Rebecca Waldecker:
New refiners for permutation group search. CoRR abs/1608.08489 (2016) - 2014
- [j10]Ian P. Gent, Christopher Jefferson, Steve Linton, Ian Miguel, Peter Nightingale:
Generating custom propagators for arbitrary constraints. Artif. Intell. 211: 1-33 (2014) - [j9]Thomas W. Kelsey, Lars Kotthoff, Christopher Jefferson, Stephen A. Linton, Ian Miguel, Peter Nightingale, Ian P. Gent:
Qualitative modelling via constraint programming. Constraints An Int. J. 19(2): 163-173 (2014) - [c29]Ian P. Gent, Bilal Syed Hussain, Christopher Jefferson, Lars Kotthoff, Ian Miguel, Glenna F. Nightingale, Peter Nightingale:
Discriminating Instance Generation for Automated Constraint Model Selection. CP 2014: 356-365 - [c28]Peter Nightingale, Özgür Akgün, Ian P. Gent, Christopher Jefferson, Ian Miguel:
Automatically Improving Constraint Models in Savile Row through Associative-Commutative Common Subexpression Elimination. CP 2014: 590-605 - [c27]Ozgur Akgun, Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Breaking Conditional Symmetry in Automated Constraint Modelling with CONJURE. ECAI 2014: 3-8 - [i4]Peter Nightingale, Ian Philip Gent, Christopher Jefferson, Ian Miguel:
Short and Long Supports for Constraint Propagation. CoRR abs/1402.0559 (2014) - 2013
- [j8]Christopher Jefferson, Peter Jeavons, Martin James Green, Marc R. C. van Dongen:
Representing and solving finite-domain constraint problems using systems of polynomials. Ann. Math. Artif. Intell. 67(3-4): 359-382 (2013) - [j7]Peter Nightingale, Ian P. Gent, Christopher Jefferson, Ian Miguel:
Short and Long Supports for Constraint Propagation. J. Artif. Intell. Res. 46: 1-45 (2013) - [c26]Ozgur Akgun, Alan M. Frisch, Ian P. Gent, Bilal Syed Hussain, Christopher Jefferson, Lars Kotthoff, Ian Miguel, Peter Nightingale:
Automated Symmetry Breaking and Model Selection in Conjure. CP 2013: 107-116 - [c25]Christopher Jefferson, Peter Nightingale:
Extending Simple Tabular Reduction with Short Supports. IJCAI 2013: 573-579 - 2012
- [c24]Andreas Distler, Christopher Jefferson, Tom Kelsey, Lars Kotthoff:
The Semigroups of Order 10. CP 2012: 883-899 - [c23]Dharini Balasubramaniam, Christopher Jefferson, Lars Kotthoff, Ian Miguel, Peter Nightingale:
An automated approach to generating efficient constraint solvers. ICSE 2012: 661-671 - [i3]Thomas W. Kelsey, Lars Kotthoff, Christopher Jefferson, Stephen A. Linton, Ian Miguel, Peter Nightingale, Ian P. Gent:
Qualitative Modelling via Constraint Programming: Past, Present and Future. CoRR abs/1209.3916 (2012) - 2011
- [c22]Ozgur Akgun, Ian Miguel, Christopher Jefferson, Alan M. Frisch, Brahim Hnich:
Extensible Automated Constraint Modelling. AAAI 2011: 4-11 - [c21]Christopher Jefferson, Karen E. Petrie:
Automatic Generation of Constraints for Partial Symmetry Breaking. CP 2011: 729-743 - [c20]Peter Nightingale, Ian P. Gent, Christopher Jefferson, Ian Miguel:
Exploiting Short Supports for Generalised Arc Consistency for Arbitrary Constraints. IJCAI 2011: 623-628 - [c19]Christopher Jefferson:
Modern constraint solving by propagation. MEMOCODE 2011: 143 - [c18]Christopher Jefferson, Wendy Moncur, Karen E. Petrie:
Combination: automated generation of puzzles with constraints. SAC 2011: 907-912 - [c17]Dharini Balasubramaniam, Lakshitha de Silva, Christopher Jefferson, Lars Kotthoff, Ian Miguel, Peter Nightingale:
Dominion: An Architecture-Driven Approach to Generating Efficient Constraint Solvers. WICSA 2011: 228-231 - [i2]Ozgur Akgun, Alan M. Frisch, Brahim Hnich, Christopher Jefferson, Ian Miguel:
Conjure Revisited: Towards Automated Constraint Modelling. CoRR abs/1109.1774 (2011) - [i1]Ian P. Gent, Christopher Jefferson, Lars Kotthoff, Ian Miguel:
Modelling Constraint Solver Architecture Design as a Constraint Problem. CoRR abs/1110.6290 (2011) - 2010
- [j6]Christopher Jefferson, Neil C. A. Moore, Peter Nightingale, Karen E. Petrie:
Implementing logical connectives in constraint programming. Artif. Intell. 174(16-17): 1407-1429 (2010) - [c16]Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Generating Special-Purpose Stateless Propagators for Arbitrary Constraints. CP 2010: 206-220 - [c15]Ian P. Gent, Christopher Jefferson, Lars Kotthoff, Ian Miguel, Neil C. A. Moore, Peter Nightingale, Karen E. Petrie:
Learning When to Use Lazy Learning in Constraint Solving. ECAI 2010: 873-878
2000 – 2009
- 2009
- [j5]Andrew Grayland, Christopher Jefferson, Ian Miguel, Colva M. Roney-Dougal:
Minimal ordering constraints for some families of variable symmetries. Ann. Math. Artif. Intell. 57(1): 75-102 (2009) - [c14]Christopher Jefferson, Serdar Kadioglu, Karen E. Petrie, Meinolf Sellmann, Stanislav Zivný:
Same-Relation Constraints. CP 2009: 470-485 - [c13]Andrea Rendl, Ian Miguel, Ian P. Gent, Christopher Jefferson:
Automatically Enhancing Constraint Model Instances during Tailoring. SARA 2009 - 2008
- [j4]Alan M. Frisch, Warwick Harvey, Christopher Jefferson, Bernadette Martínez Hernández, Ian Miguel:
Essence : A constraint language for specifying combinatorial problems. Constraints An Int. J. 13(3): 268-306 (2008) - [c12]Martin James Green, Christopher Jefferson:
Structural Tractability of Propagated Constraints. CP 2008: 372-386 - [c11]Karen E. Petrie, Christopher Jefferson:
Efficiently Solving Problems Where the Solutions Form a Group. CP 2008: 529-533 - 2007
- [b1]Christopher Jefferson:
Representations in constraint programming. University of York, UK, 2007 - [j3]Ian P. Gent, Christopher Jefferson, Tom Kelsey, Inês Lynce, Ian Miguel, Peter Nightingale, Barbara M. Smith, Armagan Tarim:
Search in the patience game 'Black Hole'. AI Commun. 20(3): 211-226 (2007) - [c10]Ian P. Gent, Christopher Jefferson, Ian Miguel, Peter Nightingale:
Data Structures for Generalised Arc Consistency for Extensional Constraints. AAAI 2007: 191-197 - [c9]Alan M. Frisch, Matthew Grum, Christopher Jefferson, Bernadette Martínez Hernández, Ian Miguel:
The Design of ESSENCE: A Constraint Language for Specifying Combinatorial Problems. IJCAI 2007: 80-87 - 2006
- [j2]David A. Cohen, Peter Jeavons, Christopher Jefferson, Karen E. Petrie, Barbara M. Smith:
Symmetry Definitions for Constraint Satisfaction Problems. Constraints An Int. J. 11(2-3): 115-137 (2006) - [j1]Christopher Jefferson, Angela Miguel, Ian Miguel, Armagan Tarim:
Modelling and solving English Peg Solitaire. Comput. Oper. Res. 33(10): 2935-2959 (2006) - [c8]David A. Cohen, Peter Jeavons, Christopher Jefferson, Karen E. Petrie, Barbara M. Smith:
Constraint Symmetry and Solution Symmetry. AAAI 2006: 1589-1592 - [c7]Ian P. Gent, Christopher Jefferson, Ian Miguel:
Watched Literals for Constraint Propagation in Minion. CP 2006: 182-197 - [c6]Ian P. Gent, Christopher Jefferson, Ian Miguel:
Minion: A Fast Scalable Constraint Solver. ECAI 2006: 98-102 - 2005
- [c5]David A. Cohen, Peter Jeavons, Christopher Jefferson, Karen E. Petrie, Barbara M. Smith:
Symmetry Definitions for Constraint Satisfaction Problems. CP 2005: 17-31 - [c4]Alan M. Frisch, Christopher Jefferson, Bernadette Martínez Hernández, Ian Miguel:
The Rules of Constraint Modelling. IJCAI 2005: 109-116 - 2004
- [c3]Christopher Jefferson:
Choosing Efficient Representations of Abstract Variables. CP 2004: 799 - [c2]Alan M. Frisch, Christopher Jefferson, Ian Miguel:
Symmetry Breaking as a Prelude to Implied Constraints: A Constraint Modelling Pattern. ECAI 2004: 171-175 - 2003
- [c1]Alan M. Frisch, Christopher Jefferson, Ian Miguel:
Constraints for Breaking More Row and Column Symmetries. CP 2003: 318-332
Coauthor Index
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