Sciweavers

1743 search results - page 73 / 349
» Generalized Modal Satisfiability
Sort
View
DLOG
2008
14 years 1 months ago
Two Upper Bounds for Conjunctive Query Answering in SHIQ
We have shown recently that, in extensions of ALC that involve inverse roles, conjunctive query answering is harder than satisfiability: it is 2-ExpTime-complete in general and NEx...
Carsten Lutz
CADE
2010
Springer
14 years 8 days ago
Monotonicity Inference for Higher-Order Formulas
Abstract. Formulas are often monotonic in the sense that if the formula is satisfiable for given domains of discourse, it is also satisfiable for all larger domains. Monotonicity i...
Jasmin Christian Blanchette, Alexander Krauss
COMBINATORICS
2006
137views more  COMBINATORICS 2006»
13 years 11 months ago
Three-Letter-Pattern-Avoiding Permutations and Functional Equations
We present an algorithm for finding a system of recurrence relations for the number of permutations of length n that satisfy a certain set of conditions. A rewriting of these rela...
Ghassan Firro, Toufik Mansour
SIGIR
2009
ACM
14 years 5 months ago
Good abandonment in mobile and PC internet search
Query abandonment by search engine users is generally considered to be a negative signal. In this paper, we explore the concept of good abandonment. We define a good abandonment ...
Jane Li, Scott B. Huffman, Akihito Tokuda
ATAL
2007
Springer
14 years 5 months ago
Reasoning about judgment and preference aggregation
Agents that must reach agreements with other agents need to reason about how their preferences, judgments, and beliefs might be aggregated with those of others by the social choic...
Thomas Ågotnes, Wiebe van der Hoek, Michael ...