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This book constitutes the refereed proceedings of the 13th Portuguese Conference on Artificial Intelligence, EPIA 2007, held in Guimaraes, Portugal, in December 2007 as eleven integrated workshops. The 58 revised full papers presented were carefully reviewed and selected from a total of 210 submissions. In accordance with the eleven constituting workshops, the papers are organized in topical sections on a broad range of subjects.

Is Economics an objective or positive science, independent of ethical and political positions? The financial crisis that began in 2007 gave rise to renewed doubts regarding the objectivity of economics and brought into the public arena a debate that was previously confined to academia. A remarkable feature of the public debate on the value neutrality of economics since then was that it not only involved indictments of ideological biases in economic theory, but also the attribution of the crisis itself to the unethical orientation of economic agents, of economists acting as experts and of...

This book describes methods for adaptive control of distributed-collector solar fields: plants that collect solar energy and deliver it in thermal form. Controller design methods are presented that can overcome difficulties found in these type of plants:

• they are distributed-parameter systems, i.e., systems with dynamics that depend on space as well as time;
• their dynamics is nonlinear, with a bilinear structure;
• there is a significant level of uncertainty in plant knowledge.

Adaptive methods form the focus of the text because of the degree of...

This book describes methods for adaptive control of distributed-collector solar fields: plants that collect solar energy and deliver it in thermal form. Controller design methods are presented that can overcome difficulties found in these type of plants:

• they are distributed-parameter systems, i.e., systems with dynamics that depend on space as well as time;
• their dynamics is nonlinear, with a bilinear structure;
• there is a significant level of uncertainty in plant knowledge.

Adaptive methods form the focus of the text because of the degree of...