Diagnosis of t/(t +1)-Diagnosable Systems
SIAM Journal on Computing
New versions of Suen's correlation inequality
proceedings of the eighth international conference on Random structures and algorithms
Optimal codes for strong identification
European Journal of Combinatorics
Diagnosis of t/s-Diagnosable Systems
WG '90 Proceedings of the 16rd International Workshop on Graph-Theoretic Concepts in Computer Science
On the Approximability of the Minimum Test Collection Problem
ESA '01 Proceedings of the 9th Annual European Symposium on Algorithms
On a new class of codes for identifying vertices in graphs
IEEE Transactions on Information Theory
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Given a graph G(V, E), the identifying codes problem is to find the smallest set of vertices D⊆V such that no two vertices in V are adjacent to the same set of vertices in D. The identifying codes problem has been applied to fault diagnosis and sensor based location detection in harsh environments. In this paper, we introduce and study a generalization of this problem, namely, the d-identifying codes problem. We propose a polynomial time approximation algorithm based on ideas from information theory and establish its approximation ratio that is very close to the best possible. Using analysis on random graphs, several fundamental properties of the optimal solution to this problem are also derived.