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VLDB
2005
ACM
112views Database» more  VLDB 2005»
14 years 17 days ago
Content-Based Routing: Different Plans for Different Data
Query optimizers in current database systems are designed to pick a single efficient plan for a given query based on current statistical properties of the data. However, different...
Pedro Bizarro, Shivnath Babu, David J. DeWitt, Jen...
EDBT
2010
ACM
143views Database» more  EDBT 2010»
13 years 10 months ago
Efficient and scalable multi-geography route planning
This paper considers the problem of Multi-Geography Route Planning (MGRP) where the geographical information may be spread over multiple heterogeneous interconnected maps. We firs...
Vidhya Balasubramanian, Dmitri V. Kalashnikov, Sha...
ICTAI
2008
IEEE
14 years 1 months ago
LRNPlanner: Planning Personalized and Contextualized E-Learning Routes
The aim of educational systems is to design a sequence of learning objects on a set of topics tailored to the learner’s goals and individual properties. However, some of the mai...
Eva Onaindia, Antonio Garrido, Oscar Sapena
ALENEX
2010
161views Algorithms» more  ALENEX 2010»
13 years 8 months ago
Route Planning with Flexible Objective Functions
We present the first fast route planning algorithm that answers shortest paths queries for a customizable linear combination of two different metrics, e. g. travel time and energy...
Robert Geisberger, Moritz Kobitzsch, Peter Sanders
GIS
2010
ACM
13 years 2 months ago
Supporting 3D route planning in indoor space based on the LEGO representation
With the prevalence of car navigation systems, indoor navigation systems are increasingly attracting attention in the indoor research area. However, the available models for indoo...
Wenjie Yuan, Markus Schneider