This book constitutes the refereed conference proceedings of the 20th International Conference on Principles and Practice of Constraint Programming, CP 2014, held in Lyon, France, in September 2014.The 65 revised papers presented...

When we use a language we are always aware of our audience. This awareness is reflected, for example, in changes to the way we speak to the same person in different contexts or to different people in the same context. This book explores...