This book constitutes the refereed conference proceedings of the 23nd International Conference
on Principles and Practice of Constraint Programming CP 2017 held in Melbourne Australia
from August 28 2017 until September 1 2017. The conference is colocated with the 20th
International Conference on Theory and Applications of Satisfiability Testing (SAT 2017) and
the 33rd International Conference on Logic Programming. The 46 revised full papers presented
were carefully reviewed and selected from 115 submissions. The scope of the contributions
includes all aspects of computing with constraints including theory algorithms environments
languages models systems and applications such as decision making resource allocation
scheduling configuration and planning. The papers are grouped into the following tracks:
technical track application track machine learning & CP track operations research & CP track
satisfiability & CP track test and verification & CP track journal & sister conference track.
