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LOCA
2005
Springer
14 years 4 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
14 years 2 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»
14 years 9 days 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
13 years 9 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
14 years 4 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