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Professor Adam Letchford

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  1. 2025

  2. 34th European Conference on Operational Research

    Letchford, A. (Speaker)

    23/06/2025

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  3. 5th Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Speaker)

    30/04/2025

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  4. 2024

  5. Progress on the uncapacitated facility location problem

    Letchford, A. (Speaker)

    4/09/2024

    Activity: Talk or presentation types › Invited talk

  6. 5th Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Member of programme committee)

    1/08/2024 → 30/04/2025

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  7. 8th International Symposium on Combinatorial Optimization

    Letchford, A. (Speaker)

    24/05/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  8. 8th International Symposium on Combinatorial Optimization

    Caceres Gelvez, S. (Speaker), Dang, T. (Contributor) & Letchford, A. (Contributor)

    22/05/2024 → 24/05/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  9. LUMS Research Conference 2024

    Caceres Gelvez, S. (Speaker), Dang, T. (Contributor) & Letchford, A. (Contributor)

    9/05/2024

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  10. 8th International Symposium on Combinatorial Optimization

    Letchford, A. (Member of programme committee)

    1/01/2024 → 24/05/2024

    Activity: Participating in or organising an event types › Participation in conference - Academic

  11. 2023

  12. 36th Conference of the European Chapter on Combinatorial Optimization

    Caceres Gelvez, S. (Speaker), Dang, T. (Speaker) & Letchford, A. (Speaker)

    11/05/2023 → 14/05/2023

    Activity: Participating in or organising an event types › Participation in conference - Academic

  13. 4th Joint IMA/ORS Conference on the Mathematics of Operational Research

    Caceres Gelvez, S. (Speaker), Dang, T. (Contributor) & Letchford, A. (Contributor)

    26/04/2023 → 28/04/2023

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  14. 4th Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Invited speaker)

    04/2023

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  15. A new approach to quadratic unconstrained binary optimisation

    Letchford, A. (Speaker)

    1/02/2023

    Activity: Talk or presentation types › Invited talk

  16. 4th Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Member of programme committee)

    1/01/2023 → 28/04/2023

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  17. 2022

  18. Insertion heuristics for a class of dynamic vehicle routing problems

    Letchford, A. (Speaker)

    6/12/2022

    Activity: Talk or presentation types › Invited talk

  19. Insertion heuristics for a class of dynamic vehicle routing problems

    Letchford, A. (Speaker)

    30/11/2022

    Activity: Talk or presentation types › Invited talk

  20. University of L'Aquila

    Letchford, A. (Visiting researcher)

    28/11/2022 → 2/12/2022

    Activity: Business or School/HEI Engagement › Visiting an external academic institution

  21. Improving a constructive heuristic for the general routing problem

    Letchford, A. (Speaker)

    6/09/2022

    Activity: Talk or presentation types › Invited talk

  22. 2022 International Conference on Optimization and Decision Science (ODS 2022)

    Letchford, A. (Speaker)

    08/2022

    Activity: Participating in or organising an event types › Participation in conference - Academic

  23. 4th Workshop on Arc Routing Problems

    Letchford, A. (Participant)

    22/05/2022 → 24/05/2022

    Activity: Participating in or organising an event types › Participation in conference - Academic

  24. 2022 STOR-i Workshop on Prediction and Optimisation

    Letchford, A. (Member of programme committee)

    1/01/2022 → 17/06/2022

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  25. 2021

  26. 34th Conference of the European Chapter on Combinatorial Optimization (ECCO XXXIV)

    Letchford, A. (Speaker)

    06/2021

    Activity: Participating in or organising an event types › Participation in conference - Academic

  27. 3rd IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Member of programme committee)

    1/01/2021 → 23/04/2021

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  28. 2020

  29. 34th Annual Conference of the Belgian Operational Research Society (ORBEL34)

    Letchford, A. (Keynote/plenary speaker)

    30/01/2020

    Activity: Participating in or organising an event types › Participation in conference - Academic

  30. 2019

  31. 61st Annual Conference of the Operational Research Society (OR61)

    Letchford, A. (Speaker)

    09/2019

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  32. 30th European Conference on Operational Research (EURO XXX)

    Letchford, A. (Invited speaker)

    25/06/2019

    Activity: Participating in or organising an event types › Participation in conference - Academic

  33. 2nd Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Invited speaker)

    25/04/2019

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  34. University of Pisa

    Letchford, A. (Visiting researcher)

    03/2019

    Activity: Business or School/HEI Engagement › Visiting an external academic institution

  35. 2018

  36. 60th Annual Conference of the Operational Research Society (OR60)

    Letchford, A. (Speaker)

    09/2018

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  37. 23rd International Symposium on Mathematical Programming (ISMP XXIII)

    Letchford, A. (Speaker)

    07/2018

    Activity: Participating in or organising an event types › Participation in conference - Academic

  38. 5th International Symposium on Combinatorial Optimization (ISCO)

    Letchford, A. (Speaker)

    04/2018

    Activity: Participating in or organising an event types › Participation in conference - Academic

  39. 23rd International Symposium on Mathematical Programming (ISMP XXIII)

    Letchford, A. (Member of programme committee)

    1/01/2018 → 6/07/2018

    Activity: Participating in or organising an event types › Participation in conference - Academic

  40. 5th International Symposium on Combinatorial Optimization (ISCO)

    Letchford, A. (Member of programme committee)

    1/01/2018 → 13/04/2018

    Activity: Participating in or organising an event types › Participation in conference - Academic

  41. 2017

  42. 1st Joint IMA/ORS Conference on the Mathematics of Operational Research

    Letchford, A. (Invited speaker)

    20/04/2017

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  43. 2016

  44. Bit representations of mixed-integer quadratic programs

    Letchford, A. (Speaker)

    6/12/2016

    Activity: Talk or presentation types › Invited talk

  45. 20th Combinatorial Optimisation Conference (CO2016)

    Letchford, A. (Keynote/plenary speaker)

    09/2016

    Activity: Participating in or organising an event types › Participation in conference - Academic

  46. 4th International Symposium on Combinatorial Optimization (ISCO)

    Letchford, A. (Keynote/plenary speaker)

    18/05/2016

    Activity: Participating in or organising an event types › Participation in conference - Academic

  47. 20th Combinatorial Optimisation Conference (CO2016)

    Letchford, A. (Member of programme committee)

    1/01/2016 → 3/09/2016

    Activity: Participating in or organising an event types › Participation in conference - Academic

  48. 2015

  49. 27th European Conference on Operational Research (EURO XXVII)

    Letchford, A. (Invited speaker)

    12/07/2015 → 15/07/2015

    Activity: Participating in or organising an event types › Participation in conference - Academic

  50. 17th British-French-German Optimisation Conference (BFG 2015)

    Letchford, A. (Invited speaker)

    06/2015

    Activity: Participating in or organising an event types › Participation in conference - Academic

  51. An introduction to approximation algorithms (and inapproximability)

    Letchford, A. (Speaker)

    24/02/2015

    Activity: Talk or presentation types › Invited talk

  52. Mathematical Programming (Journal)

    Letchford, A. (Guest editor)

    2015

    Activity: Publication peer-review and editorial work types › Editorial activity

  53. 2014

  54. Stronger multi-commodity flow formulations of the capacitated vehicle routing problem

    Letchford, A. (Speaker)

    21/05/2014

    Activity: Talk or presentation types › Invited talk

  55. 2013

  56. LANCS International Workshop on Discrete and Nonlinear Optimisation

    Letchford, A. (Speaker)

    05/2013

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  57. Some unbounded convex sets arising in non-convex MIQP

    Letchford, A. (Speaker)

    12/04/2013

    Activity: Talk or presentation types › Invited talk

  58. Strengthening the reformulation-linearisation technique with cutting planes

    Letchford, A. (Speaker)

    04/2013

    Activity: Talk or presentation types › Invited talk

  59. 2012

  60. 25th European Conference on Operational Research (EURO XXV)

    Letchford, A. (Speaker)

    07/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  61. 25th European Conference on Operational Research (EURO XXV)

    Letchford, A. (Speaker)

    07/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  62. 10th International Conference on Applied Mathematical Optimization and Modelling (APMOD 2012)

    Letchford, A. (Speaker)

    03/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  63. Second order cone programming and its applications

    Letchford, A. (Speaker)

    02/2012

    Activity: Talk or presentation types › Invited talk

  64. 10th International Conference on Applied Mathematical Optimization and Modelling (APMOD 2012)

    Letchford, A. (Member of programme committee)

    1/01/2012 → 30/03/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  65. 18th Combinatorial Optimisation Conference (CO2012)

    Letchford, A. (Member of programme committee)

    1/01/2012 → 19/09/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  66. 21st International Symposium on Mathematical Programming

    Letchford, A. (Member of programme committee)

    1/01/2012 → 24/08/2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  67. 25th European Conference on Operational Research (EURO XXV)

    Letchford, A. (Member of programme committee)

    2012

    Activity: Participating in or organising an event types › Participation in conference - Academic

  68. EURO Journal on Computational Optimization (Journal)

    Letchford, A. (Associate Editor)

    2012 → …

    Activity: Publication peer-review and editorial work types › Editorial activity

  69. Operations Research (Journal)

    Letchford, A. (Associate Editor)

    2012 → 2018

    Activity: Publication peer-review and editorial work types › Editorial activity

  70. 2011

  71. 8th Mixed-Integer Programming Workshop (MIP 2011)

    Letchford, A. (Invited speaker)

    06/2011

    Activity: Participating in or organising an event types › Participation in conference - Academic

  72. SIAM Conference on Optimization

    Letchford, A. (Invited speaker)

    05/2011

    Activity: Participating in or organising an event types › Participation in conference - Academic

  73. LANCS Workshop on Modelling and Solving Complex Optimisation Problems

    Letchford, A. (Speaker)

    04/2011

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  74. Convex relaxations of the stable set problem

    Letchford, A. (Speaker)

    03/2011

    Activity: Talk or presentation types › Invited talk

  75. Reformulating mixed-integer quadratically-constrained quadratic programmes

    Letchford, A. (Speaker)

    03/2011

    Activity: Talk or presentation types › Invited talk

  76. 2010

  77. A tutorial on mixed-integer non-linear programming

    Letchford, A. (Speaker)

    11/2010

    Activity: Talk or presentation types › Invited talk

  78. Mixed-integer non-linear programming: a survey

    Letchford, A. (Speaker)

    10/2010

    Activity: Talk or presentation types › Invited talk

  79. Reformulation of 0-1 quadratically constrained quadratic programs

    Letchford, A. (Speaker)

    10/2010

    Activity: Talk or presentation types › Invited talk

  80. An introduction to second-order cone programming

    Letchford, A. (Speaker)

    09/2010

    Activity: Talk or presentation types › Invited talk

  81. 14th Conference on Integer Programming and Combinatorial Optimization (IPCO XIV)

    Letchford, A. (Speaker)

    06/2010

    Activity: Participating in or organising an event types › Participation in conference - Academic

  82. London School of Economics

    Letchford, A. (Examiner)

    06/2010 → 09/2012

    Activity: Business or School/HEI Engagement › Visiting an external academic institution

  83. 2010 Joint ECCO-CO Conference

    Letchford, A. (Speaker)

    05/2010

    Activity: Participating in or organising an event types › Participation in conference - Academic

  84. Optimisation over cones

    Letchford, A. (Speaker)

    04/2010

    Activity: Talk or presentation types › Invited talk

  85. The Travelling Salesman Problem

    Letchford, A. (Speaker)

    04/2010

    Activity: Talk or presentation types › Invited talk

  86. 2nd LANCS Workshop on Discrete and Nonlinear Optimisation

    Letchford, A. (Speaker)

    03/2010

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  87. 2010 Joint ECCO-CO Conference

    Letchford, A. (Member of programme committee)

    1/01/2010 → 29/05/2010

    Activity: Participating in or organising an event types › Participation in conference - Academic

  88. Algorithmic Aspects in Information and Management

    Letchford, A. (Member of programme committee)

    1/01/2010 → 21/07/2010

    Activity: Participating in or organising an event types › Participation in conference - Academic

  89. 2nd LANCS Workshop in Heuristic Understanding

    Letchford, A. (Speaker)

    01/2010

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  90. 2009

  91. 51st Annual Conference of the Operational Research Society (OR51)

    Letchford, A. (Speaker)

    09/2009

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  92. 23rd European Conference on Operational Research (EURO XXIII)

    Letchford, A. (Invited speaker)

    07/2009

    Activity: Participating in or organising an event types › Participation in conference - Academic

  93. Fifty years of cutting planes

    Letchford, A. (Invited speaker)

    06/2009

    Activity: Talk or presentation types › Invited talk

  94. 4th International Network Optimization Conference (INOC 2009)

    Letchford, A. (Invited speaker)

    04/2009

    Activity: Participating in or organising an event types › Participation in conference - Academic

  95. On non-convex quadratic programming with box constraints

    Letchford, A. (Speaker)

    04/2009

    Activity: Talk or presentation types › Invited talk

  96. 1st Student Conference on Operational Research

    Letchford, A. (Keynote/plenary speaker)

    03/2009

    Activity: Participating in or organising an event types › Participation in conference - Academic

  97. 1st LANCS Workshop on Discrete and Nonlinear Optimisation

    Letchford, A. (Speaker)

    02/2009

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  98. 4th International Network Optimization Conference (INOC 2009)

    Letchford, A. (Member of programme committee)

    1/01/2009 → 29/04/2009

    Activity: Participating in or organising an event types › Participation in conference - Academic

  99. Recent progress on knapsack-based cutting planes

    Letchford, A. (Speaker)

    01/2009

    Activity: Talk or presentation types › Invited talk

  100. 23rd European Conference on Operational Research (EURO XXIII)

    Letchford, A. (Organiser)

    2009

    Activity: Participating in or organising an event types › Participation in conference - Academic

  101. 51st Annual Conference of the Operational Research Society (OR51)

    Letchford, A. (Organiser)

    2009

    Activity: Participating in or organising an event types › Participation in conference -Mixed Audience

  102. Discrete Optimization (Journal)

    Letchford, A. (Associate Editor)

    2009 → 2012

    Activity: Publication peer-review and editorial work types › Editorial activity

  103. 2008

  104. Bonn Workshop on Combinatorial Optimisation

    Letchford, A. (Invited speaker)

    11/2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  105. Binary positive semidefinite matrices and some related polytopes

    Letchford, A. (Visitor)

    08/2008

    Activity: Talk or presentation types › Invited talk

  106. Mixed-Integer Programming Workshop (MIP 2008)

    Letchford, A. (Invited speaker)

    08/2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  107. 13th Conference on Integer Programming and Combinatorial Optimization (IPCO XIII)

    Letchford, A. (Speaker)

    05/2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  108. 15th Combinatorial Optimisation Conference (CO2008)

    Letchford, A. (Keynote/plenary speaker)

    03/2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  109. 12th Aussois Workshop on Combinatorial Optimisation

    Letchford, A. (Invited speaker)

    01/2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  110. 2nd INFORMS Optimization Society Conference (2008)

    Letchford, A. (Member of programme committee)

    2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  111. ALIO/EURO Conference on Combinatorial Optimization

    Letchford, A. (Member of programme committee)

    2008

    Activity: Participating in or organising an event types › Participation in conference - Academic

  112. Discrete Applied Mathematics (Journal)

    Letchford, A. (Guest editor)

    2008

    Activity: Publication peer-review and editorial work types › Editorial activity

  113. Mathematical Programming Computation (Journal)

    Letchford, A. (Associate Editor)

    2008 → 2012

    Activity: Publication peer-review and editorial work types › Editorial activity

  114. 2007

  115. An introduction to conic programming

    Letchford, A. (Speaker)

    08/2007

    Activity: Talk or presentation types › Invited talk

  116. Optimization 2007

    Letchford, A. (Keynote/plenary speaker)

    07/2007

    Activity: Participating in or organising an event types › Participation in conference - Academic

  117. 3rd International Network Optimization Conference (INOC 2007)

    Letchford, A. (Keynote/plenary speaker)

    04/2007

    Activity: Participating in or organising an event types › Participation in conference - Academic

  118. Stronger upper bounds for the maximum stable set problem

    Letchford, A. (Speaker)

    02/2007

    Activity: Talk or presentation types › Invited talk

  119. Discrete Optimization (Journal)

    Letchford, A. (Guest editor)

    2007

    Activity: Publication peer-review and editorial work types › Editorial activity

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