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IPL
2002
86views more  IPL 2002»
14 years 9 months ago
A polynomial algorithm for lot-size scheduling of two type tasks
We study the problem of scheduling unit time tasks of two types on m parallel identical machines. For each type, given numbers of tasks are required to be completed by the specifi...
Mikhail Y. Kovalyov, Marcus Pattloch, Günter ...
IPL
2002
117views more  IPL 2002»
14 years 9 months ago
Complexity of weak acceptance conditions in tree automata
Weak acceptance conditions for automata on infinite words or trees are defined in terms of the set of states that appear in the run. This is in contrast with, more usual, strong c...
Jakub Neumann, Andrzej Szepietowski, Igor Walukiew...
IPL
2002
65views more  IPL 2002»
14 years 9 months ago
A new bound for map labeling with uniform circle pairs
Given a planar point set, we wish to label the points with uniform circular labels such that each input point lies on the boundary of two labels, none of the interiors of the labe...
Michael J. Spriggs, J. Mark Keil
IPL
1998
177views more  IPL 1998»
14 years 9 months ago
A Common-Multiplicand Method to the Montgomery Algorithm for Speeding up Exponentiation
A common-multiplicand method to the Montgomery algorithm makes an improvement in speed when the right-to-left binary exponentiation is applied. The idea is that the same common pa...
JaeCheol Ha, Sang-Jae Moon
IPL
2010
115views more  IPL 2010»
14 years 8 months ago
Hardness and approximation of minimum distortion embeddings
We show that the problem of computing a minimum distortion embedding of a given graph into a path remains NP-hard when the input graph is restricted to a bipartite, cobipartite, o...
Pinar Heggernes, Daniel Meister