---
title: "Answer Set Optimization"
authors:
  - "Gerhard Brewka"
  - "Ilkka Niemelä"
  - "Miroslaw Truszczynski"
doi: ""
url: "https://ijcai.org/proceedings/2003/124"
pdf: "https://ijcai.org/proceedings/2003/0124.pdf"
venue: "Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence"
year: 2003
pages: "867-871"
track: ""
keywords:
---

# Answer Set Optimization

Gerhard Brewka, Ilkka Niemelä, Miroslaw Truszczynski

*Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence*, pages 867-871.

## Abstract

We investigate the combination of answer set programming and qualitative optimization techniques. Answer set optimization programs (ASO programs) have two parts. The generating program P ge n produces answer sets representing possible solutions. The preference program Ppr ef expresses user preferences. It induces a preference relation on the answer sets of Pg en based on the degree to which rules are satisfied. We discuss possible applications of ASO programming, give complexity results and propose implementation techniques. We also analyze the relationship between ASO programs and CP-networks.