Judgment aggregation is an area of social choice theory concerned with the study of methods for amalgamating the views of different agents regarding the truth of a number of mutually dependent propositions expressed in a logical language. Originating in Philosophy and Economics, judgment aggregation has recently caught the attention of researchers in Computer Science and Artificial Intelligence. This is due not only to its appeal as a rich modelling framework for collective decision making, but also to the exciting algorithmic questions raised by the framework. This tutorial will provide an introduction to the field.
I have previously delivered a similar tutorial at WINE-2012. For additional material, consult the website of my course on computational social choice, given annually at the ILLC.