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NETWORKS
2010
14 years 10 months ago
Complexity of some inverse shortest path lengths problems
The input to an Inverse Shortest Path Lengths Problem (ISPL) consists of a graph G with arc weights, and a collection of source-sink pairs with prescribed distances that do not ne...
Tingting Cui, Dorit S. Hochbaum
82
Voted
ECAI
2006
Springer
15 years 3 months ago
Inverse Consistencies for Non-Binary Constraints
We present a detailed study of two inverse consistencies for non-binary constraints: relational path inverse consistency (rel PIC) and pairwise inverse consistency (PWIC). These ar...
Kostas Stergiou, Toby Walsh
IJAC
2007
117views more  IJAC 2007»
14 years 11 months ago
Equations in Free Inverse Monoids
It is known that the problem of determining consistency of a finite system of equations in a free group or a free monoid is decidable, but the corresponding problem for systems o...
Timothy Deis, John C. Meakin, Géraud S&eacu...
SODA
2010
ACM
202views Algorithms» more  SODA 2010»
15 years 9 months ago
Counting Inversions, Offline Orthogonal Range Counting, and Related Problems
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...
Timothy M. Chan, Mihai Patrascu
CORR
2011
Springer
230views Education» more  CORR 2011»
14 years 6 months ago
Computational Rationalization: The Inverse Equilibrium Problem
Modeling the behavior of imperfect agents from a small number of observations is a difficult, but important task. In the singleagent decision-theoretic setting, inverse optimal co...
Kevin Waugh, Brian Ziebart, J. Andrew Bagnell