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» New Bounds for Codes Identifying Vertices in Graphs
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IMA
2001
Springer
80views Cryptology» more  IMA 2001»
14 years 1 months ago
Spectrally Bounded Sequences, Codes, and States: Graph Constructions and Entanglement
A recursive construction is provided for sequence sets which possess good Hamming Distance and low Peak-to-Average Power Ratio (PAR) under any Local Unitary Unimodular Transform. W...
Matthew G. Parker
WABI
2007
Springer
133views Bioinformatics» more  WABI 2007»
14 years 2 months ago
RNA Folding Including Pseudoknots: A New Parameterized Algorithm and Improved Upper Bound
Predicting the secondary structure of an RNA sequence is an important problem in structural bioinformatics. The general RNA folding problem, where the sequence to be folded may con...
Chunmei Liu, Yinglei Song, Louis W. Shapiro
ICALP
2009
Springer
14 years 8 months ago
Counting Subgraphs via Homomorphisms
We introduce a generic approach for counting subgraphs in a graph. The main idea is to relate counting subgraphs to counting graph homomorphisms. This approach provides new algori...
Omid Amini, Fedor V. Fomin, Saket Saurabh
ACSD
1998
IEEE
121views Hardware» more  ACSD 1998»
14 years 25 days ago
Identifying State Coding Conflicts in Asynchronous System Specifications Using Petri Net Unfoldings
State coding conflict detection is a fundamental part of synthesis of asynchronous concurrent systems from their specifications as Signal Transition Graphs (STGs), which are a spe...
Alex Kondratyev, Jordi Cortadella, Michael Kishine...
WADS
2005
Springer
145views Algorithms» more  WADS 2005»
14 years 2 months ago
Approximation Algorithms for Forests Augmentation Ensuring Two Disjoint Paths of Bounded Length
Given a forest F = (V, E) and a positive integer D, we consider the problem of finding a minimum number of new edges E such that in the augmented graph H = (V, E∪E ) any pair of...
Victor Chepoi, Bertrand Estellon, Yann Vaxè...