The International Conference Series on Agreement Technologies is an interdisciplinary forum that brings together researchers and practitioners who address the various themes that encompass this emerging and living field. It provides an opportunity to discuss and exchange new ideas and techniques for the design, implementation and verification of next-generation distributed open systems based on the concept of agreement between computational agents. The documents accepted by EUMAS 2020 and AT 2020 are published by Springer in a joint LNAI band, in accordance with the procedure. As such, they are provided to several indexing services (including Scopus, CPCI, EI Engineering Index and more). Authors should consult springer authors` guidelines and use their procedural models, either for LaTeX or Word, to carry out their work. Springer encourages authors to incorporate their ORCIDs into their papers. We urge authors to follow these guidelines as soon as the submission phase begins. Further guidelines will be communicated to the authors of the documents adopted at the end of the final draft preparation conference to be included in the subsequent proceedings. This book presents the revised reports of the 17th European Conference on Multi-Agent Systems, EUMAS 2020, and the 7th International Conference on Treaty Technologies, AT 2020, which were originally scheduled to be held in Thessaloniki, Greece, in April 2020.
Due to the COVID 19 pandemic, the conference was postponed until September 2020 and eventually became an all-virtual conference. The 38 complete contributions in this volume were carefully reviewed and selected from a total of 53 submissions. The work reports early and mature research and covers a wide range of topics in the area of stand-alone agents and multi-agent systems. Agreement technologies refer to computer systems in which autonomous software agents negotiate with each other, usually on behalf of man, to conclude agreements acceptable to both parties. An agent may choose whether or not to comply with an agreement, and should comply if there is an obligation under the permanent agreements. Autonomy, interaction, mobility and openness are key concepts studied in The Agreement Technologies approach. Semantic orientation, negotiation, reasoning, virtual organizations, trust and reputation, and many other technologies are part of the sandbox to define, specify and verify these systems. Organizer: eumas2020.csd.auth.gr/at2020/committees/ AT 2020 will take place on 22 and 23 April 2020 in Thessaloniki, Greece and will take place jointly with EUMAS 2020. The registration fee covers access to both conferences. AT 2020 follows the results of previous editions of the International Conference Series on Agreement Technologies: AT 2012 in Dubrovnik, Croatia, AT 2013 in Beijing, China, AT 2015 in Athens, Greece, AT 2016 in Valencia, Spain, AT 2017 in Vry, France and AT 2018 in Bergen, Norway. Each submission is subject to a double-blind peer review process, with three peer reviews. All submissions must be written in English and formatted in the LNCS springer style.
We request the presentation of a title and summary prior to paper filing to support the tight review schedule. Authors must submit their abstracts and documents through EasyChair`s AT 2020 submission site. Each document submitted should not contain author information. Short documents (6-8 pages): This work is intended for the discussion of ideas and concepts related to the research and application of tuning technologies. These could include thoughtful criticism in this area, technical discussions on different implementation techniques, methodological contributions and visionary ideas that offer long-term challenges, and new research and application opportunities that are outside the current mainstream in the field. Европейское научное обозрение. The Journal of Autonomous Agents and Multiagent Systems (JAAMAS) this year offers the opportunity to accelerate an AT-2020 document selected for the journal.