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CDC
2008
IEEE
129views Control Systems» more  CDC 2008»
14 years 2 months ago
On the structure of graph edge designs that optimize the algebraic connectivity
— We take a structural approach to the problem of designing the edge weights in an undirected graph subject to an upper bound on their total, so as to maximize the algebraic conn...
Yan Wan, Sandip Roy, Xu Wang, Ali Saberi, Tao Yang...
CORR
2002
Springer
112views Education» more  CORR 2002»
13 years 7 months ago
Determination of the structure of algebraic curvature tensors by means of Young symmetrizers
For a positive definite fundamental tensor all known examples of Osserman algebraic curvature tensors have a typical structure. They can be produced from a metric tensor and a fini...
Bernd Fiedler
SBMF
2009
Springer
14 years 2 months ago
Corecursive Algebras: A Study of General Structured Corecursion
Motivated by issues in designing practical total functional programming languages, we are interested in structured recursive equations that uniquely describe a function not because...
Venanzio Capretta, Tarmo Uustalu, Varmo Vene
CIKM
2009
Springer
14 years 2 months ago
AS-index: a structure for string search using n-grams and algebraic signatures
AS-Index is a new index structure for exact string search in disk resident databases. It uses hashing, unlike known alternate structures, tree or trie based, and indexes every n-g...
Cédric du Mouza, Witold Litwin, Philippe Ri...
ICDE
2004
IEEE
120views Database» more  ICDE 2004»
14 years 9 months ago
Algebraic Signatures for Scalable Distributed Data Structures
Signatures detect changes to the data objects. Numerous schemes a known, e.g., the popular hash based SHA-1 standard. We propose a nov scheme we call algebraic signatures. We use ...
Witold Litwin, Thomas J. E. Schwarz