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LOCA
2005
Springer
15 years 10 months ago
Improving the Accuracy of Ultrasound-Based Localisation Systems
Abstract. We present an improvement to ultrasound–based indoor location systems like Cricket [1]. By encoding and modulating the ultrasound pulses, we are able to achieve greater...
Hubert Piontek, Matthias Seyffer, Jörg Kaiser
DAWAK
2004
Springer
15 years 9 months ago
Space-Efficient Range-Sum Queries in OLAP
Abstract. In this paper, we present a fast algorithm to answer rangesum queries in OLAP data cubes. Our algorithm supports constanttime queries while maintaining sub-linear time up...
Fredrik Bengtsson, Jingsen Chen
BNCOD
2009
97views Database» more  BNCOD 2009»
15 years 6 months ago
An XML-Based Model for Supporting Context-Aware Query and Cache Management
Abstract. Database systems (DBSs) can play an essential role in facilitating the query and cache management in context-aware mobile information systems (CAMIS). Two of the fundamen...
Essam Mansour, Hagen Höpfner
ICCHP
2010
Springer
15 years 3 months ago
Simple Browser Construction Toolkit
A special browser is a specialized browser designed only for a specific website, providing a very comfortable user interface for that website. However, it is usually necessary to ...
Osamu Miyamoto
PCI
2005
Springer
15 years 10 months ago
Storing and Locating Mutable Data in Structured Peer-to-Peer Overlay Networks
Structured peer-to-peer overlay networks or Distributed Hash Tables (DHTs) are distributed systems optimized for storage and retrieval of read-only data. In this paper we elaborate...
Antony Chazapis, Nectarios Koziris