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SPAA
2010
ACM
15 years 4 months ago
Basic network creation games
We study a natural network creation game, in which each node locally tries to minimize its local diameter or its local average distance to other nodes, by swapping one incident ed...
Noga Alon, Erik D. Demaine, MohammadTaghi Hajiagha...
VLDB
2008
ACM
110views Database» more  VLDB 2008»
16 years 2 days ago
Enhancing histograms by tree-like bucket indices
Histograms are used to summarize the contents of relations into a number of buckets for the estimation of query result sizes. Several techniques (e.g., MaxDiff and V-Optimal) have ...
Francesco Buccafurri, Gianluca Lax, Domenico Sacc...
ICALP
2007
Springer
15 years 3 months ago
In-Place Suffix Sorting
Given string T = T[1, . . . , n], the suffix sorting problem is to lexicographically sort the suffixes T[i, . . . , n] for all i. This problem is central to the construction of suf...
Gianni Franceschini, S. Muthukrishnan
FSTTCS
2008
Springer
15 years 28 days ago
STCON in Directed Unique-Path Graphs
ABSTRACT. We study the problem of space-efficient polynomial-time algorithms for directed stconnectivity (STCON). Given a directed graph G, and a pair of vertices s, t, the STCON ...
Sampath Kannan, Sanjeev Khanna, Sudeepa Roy
DDEP
2000
Springer
15 years 4 months ago
GODDAG: A Data Structure for Overlapping Hierarchies
Abstract. Notations like SGML and XML represent document structures using tree structures; while this is in general a step forward from earlier systems, it creates certain difficul...
C. M. Sperberg-McQueen, Claus Huitfeldt