Publications of A. Remshagen

This page shows all publications that appeared in the IASI annual research reports. Authors currently affiliated with the Institute are always listed with the full name.

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Show all publications of the year  2003, with author Remshagen A., in the category IASI Research Reports (or show them all):


IASI Research Report n. 591    

Giovanni Felici, Remshagen A., Truemper K.

The Futile Questioning Problem

ABSTRACT
In the futile questioning problem, one must whether acquisition of additional information can possibily lead to proof a conclusion. In the case considered here, solution of that problem demands evaluation of a quantified Boolean formula at the second level of the polynomial hierarchy. We call that evaluation problem Q-ALL SAT. In this paper we determine the complexity of Q-ALL SAT and os special subclasses, and develop a solution algorithm that utilizes decomposition, enumeration, and learning of clauses. We report first results for two sets of instances involving a robot route problem and a game problem. According to these preliminary results, the algorithm is quite effective. Finally. we summarize several variations of Q-ALL SAT that are of practical interest.
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