1. Preface

   • Andrew S. Gordon
   • Rob Miller
   • György Turán

   EditorialNotes 07 September 2020 Pages: 1 - 5

2. An investigation of parametrized difference revision operators

   • Theofanis Aravanis
   • Pavlos Peppas
   • Mary-Anne Williams

   OriginalPaper 26 March 2019 Pages: 7 - 28

3. A probabilistic interval-based event calculus for activity recognition

   • Alexander Artikis
   • Evangelos Makris
   • Georgios Paliouras

   OriginalPaper 07 August 2019 Pages: 29 - 52

4. Valid attacks in argumentation frameworks with recursive attacks

   • C. Cayrol
   • J. Fandinno
   • M.-C. Lagasquie-Schiex

   OriginalPaper 19 November 2020 Pages: 53 - 101

5. Log_AG: An algebraic non-monotonic logic for reasoning with graded propositions

   • Nourhan Ehab
   • Haythem O. Ismail

   OriginalPaper 20 June 2020 Pages: 103 - 158

6. Correction to: Log_AG: An algebraic non-monotonic logic for reasoning with graded propositions

   • Nourhan Ehab
   • Haythem O. Ismail

   Correction 02 August 2020 Pages: 159 - 159

7. Competing hypotheses and abductive inference

   • David H. Glass

   OriginalPaper Open access 06 May 2019 Pages: 161 - 178

8. What do you really want to do? Towards a Theory of Intentions for Human-Robot Collaboration

   • Rocio Gomez
   • Mohan Sridharan
   • Heather Riley

   OriginalPaper Open access 24 March 2020 Pages: 179 - 208

9. Revising event calculus theories to recover from unexpected observations

   • Nikoleta Tsampanaki
   • Theodore Patkos
   • Dimitris Plexousakis

   OriginalPaper 09 August 2019 Pages: 209 - 236