1. Challenges and opportunities in crowdsourced delivery planning and operations

   • Martin W.P Savelsbergh
   • Marlin W. Ulmer

   Invited Survey 21 January 2022 Pages: 1 - 21

   

2. An alternate approach to solve two-level hierarchical time minimization transportation problem

   • Prabhjot Kaur
   • Anuj Sharma
   • Kalpana Dahiya

   Research Paper 23 November 2020 Pages: 23 - 61

   

3. Preference elicitation for a ranking method based on multiple reference profiles

   • Alexandru-Liviu Olteanu
   • Khaled Belahcene
   • Jun Zheng

   Research Paper 02 January 2021 Pages: 63 - 84

   

4. A note on the integrality gap of cutting and skiving stock instances

   • John Martinovic

   Research Paper Open access 23 December 2020 Pages: 85 - 104

5. Optimality and duality in nonsmooth multiobjective fractional programming problem with constraints

   • Tran Van Su
   • Dinh Dieu Hang

   Research Paper 02 January 2021 Pages: 105 - 137

6. A dominance-based rough set approach applied to evaluate the credit risk of sovereign bonds

   • Julio Cezar Soares Silva
   • Diogo Ferreira de Lima Silva
   • Adiel Teixeira de Almeida-Filho

   Research Paper 20 January 2021 Pages: 139 - 164

   

7. Controlling the emotional expressiveness of synthetic speech: a deep learning approach

   • Noé Tits

   PhD Thesis 24 June 2021 Pages: 165 - 166

8. Correction to: Exact distributional analysis of online algorithms with lookahead

   • Fabian Dunke
   • Stefan Nickel

   Correction 11 June 2021 Pages: 167 - 167

9. A gap in scientific reporting

   • Gilbert Laporte
   • Paolo Toth

   Letter to the Editors 05 June 2021 Pages: 169 - 171