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ACL
1996
13 years 10 months ago
Another Facet of LIG Parsing
In this paper 1 we present a new parsing algorithm for linear indexed grammars (LIGs) in the same spirit as the one described in (Vijay-Shanker and Weir, 1993) for tree adjoining ...
Pierre Boullier
WEA
2010
Springer
330views Algorithms» more  WEA 2010»
14 years 3 months ago
Exact Bipartite Crossing Minimization under Tree Constraints
A tanglegram consists of a pair of (not necessarily binary) trees T1, T2 with leaf sets L1, L2. Additional edges, called tangles, may connect nodes in L1 with those in L2. The task...
Frank Baumann, Christoph Buchheim, Frauke Liers
DLT
2008
13 years 10 months ago
Derivation Tree Analysis for Accelerated Fixed-Point Computation
We show that for several classes of idempotent semirings the least fixed-point of a polynomial system of equations X = f(X) is equal to the least fixed-point of a linear system obt...
Javier Esparza, Stefan Kiefer, Michael Luttenberge...
ADHOC
2005
116views more  ADHOC 2005»
13 years 8 months ago
Power efficient routing trees for ad hoc wireless networks using directional antenna
In ad hoc wireless networks, nodes are typically powered by batteries. Therefore saving energy has become a very important objective, and different algorithms have been proposed t...
Fei Dai, Qing Dai, Jie Wu
BIRTHDAY
1992
Springer
14 years 22 days ago
Single Tree Grammars
A context-free grammar is a single-tree grammar (STG) if every nonterminal symbol has at most one production rule whose right hand side contains nonterminal symbols. Various prope...
Sheila A. Greibach, Weiping Shi, Shai Simonson