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TMC
2011
201views more  TMC 2011»
13 years 5 months ago
Data Delivery Properties of Human Contact Networks
—Pocket Switched Networks take advantage of social contacts to opportunistically create data paths over time. This work employs empirical traces to examine the effect of the huma...
Nishanth Sastry, D. Manjunath, Karen R. Sollins, J...
NETWORKS
2007
13 years 10 months ago
Models and branch-and-cut algorithms for pickup and delivery problems with time windows
In the pickup and delivery problem with time windows (PDPTW), capacitated vehicles must be routed to satisfy a set of transportation requests between given origins and destination...
Stefan Ropke, Jean-François Cordeau, Gilber...
CORR
2010
Springer
186views Education» more  CORR 2010»
13 years 10 months ago
Channel Estimation for Opportunistic Spectrum Access: Uniform and Random Sensing
The knowledge of channel statistics can be very helpful in making sound opportunistic spectrum access decisions. It is therefore desirable to be able to efficiently and accurately...
Quanquan Liang, Mingyan Liu
ICDE
2010
IEEE
203views Database» more  ICDE 2010»
14 years 3 months ago
Optimizing ETL workflows for fault-tolerance
Extract-Transform-Load (ETL) processes play an important role in data warehousing. Typically, design work on ETL has focused on performance as the sole metric to make sure that the...
Alkis Simitsis, Kevin Wilkinson, Umeshwar Dayal, M...
HICSS
2005
IEEE
157views Biometrics» more  HICSS 2005»
14 years 4 months ago
A Two-Stage Heuristic for the Vehicle Routing Problem with Time Windows and a Limited Number of Vehicles
The Vehicle Routing Problem with Time Windows (VRPTW) is an important problem in logistics. The problem is to serve a number of customers at minimum cost without violating the cus...
Andrew Lim, Xingwen Zhang
WCNC
2008
IEEE
14 years 5 months ago
An Opportunistic Scheduling Scheme with Minimum Data-Rate Guarantees for OFDMA
Abstract—We tackle the problem of providing minimum datarate guarantees for different classes-of-service in an OFDMAbased network, while obtaining a high system throughput. Our a...
Razvan Pitic, Antonio Capone