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157
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TALG
2010
15 years 2 months ago
2010
We introduce a facility location problem with submodular facility cost functions, and give an O(log n) approximation algorithm for it. Then we focus on a special case of submodula...
158
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WINET
2010
15 years 2 months ago
2010
In this paper, we study the performance of the cumulative Automatic Repeat reQuest (ARQ) in IEEE 802.16 networks. An analytical model is developed to investigate some important per...
136
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TC
2008
15 years 4 months ago
2008
Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services are no longer confined to the wired domain and are ...
126
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SAINT
2008
IEEE
15 years 10 months ago
2008
IEEE
The way people collaborate has been changed substantially. Team members are now belonging to different organizations, working on multiple objectives at the same time, frequently c...
116
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IADIS
2003
15 years 5 months ago
2003
There are several factors that have been influencing and creating deep changes in the Portuguese banking sector. Among these, we can highlight technological innovation, the increa...