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164
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DISOPT
2006
15 years 6 months ago
2006
We present lower bounds for the vehicle routing problem (VRP) with and without split deliveries, improving the well known bound of Haimovich and Rinnooy Kan. These bounds are then...
173
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IPL
2007
15 years 6 months ago
2007
We show that the problem of reaching a state set with probability 1 in probabilisticnondeterministic systems operating in parallel is EXPTIME-complete. We then show that this prob...
275
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
We propose a general framework to index very large datasets of spatial data in a distributed system. Our proposal is built on the recently proposed Scalable Distributed Rtree (SD-...
172
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ICML
2005
IEEE
16 years 7 months ago
2005
IEEE
The current framework of reinforcement learning is based on maximizing the expected returns based on scalar rewards. But in many real world situations, tradeoffs must be made amon...
158
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CHI
2005
ACM
16 years 7 months ago
2005
ACM
Email triage is the process of going through unhandled email and deciding what to do with it. Email triage can quickly become a serious problem for users as the amount of unhandle...