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We present a unified logical framework for representing and reasoning about both probability quantitative and qualitative preferences in probability answer set programming [Saad and Pontelli, 2006; Saad, 2006; Saad, 2007a], called probability answer set optimization programs. The proposed framework is vital to allow defining probability quantitative preferences over the possible outcomes of qua...

At the end of 2006, a new System for Promotion of Personal Autonomy and Assistance for Persons in a Situation of Dependency (SAAD) was established in Spain through the approval of the Act 39/2006 of 14th December (the Dependency Act, DA). The DA acknowledged the universal entitlement of Spanish citizens to social services. The recent economic crisis added degrees of uncertainty to several dimen...

Fuzzy answer set programming [Saad, 2010; Saad, 2009; Subrahmanian, 1994] is a declarative framework for representing and reasoning about knowledge in fuzzy environments. However, the unavailability of fuzzy aggregates in disjunctive fuzzy logic programs, DFLP, with fuzzy answer set semantics [Saad, 2010] prohibits the natural and concise representation of many interesting problems. In this pap...

To my parents, Hadi and Azam and to my husband, Masoud ii ACKNOWLEDGEMENTS I would first like to thank my outstanding advisor, Professor Todd Austin, for his continuous guidance, strong support and encouragement without which, this work would have not been possible. It has been truly a privilege for me to work with him and I look forward to our further corporations in the future. has produced a...

venous pressure be interchangeable with central venous pressure in patients undergoing cardiac surgery. Intensive Care Med 2004; 30: 627–632. 3. Charalambous C, Barker TA, Zipitis CS. Comparison of peripheral and central venous pressures in critically ill patients. Anaesth Intensive Care 2003; 31: 34–39. 4. Hoftman N, Braunfeld M, Hoftman G et al. Peripheral venous pressure as a predictor of ce...