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MOBICOM
2004
ACM
16 years 1 days ago
Towards service and user discovery on wireless networks
This work presents a user position management system for Wi-Fi networks. The location system is based on access point coverage range and beacon devices. The implementation was mad...
Andrei Oliveira da Silva, Paulo Henrique de Souza ...
COLING
2002
15 years 6 months ago
A Methodology for Terminology-based Knowledge Acquisition and Integration
In this paper we propose an integrated knowledge management system in which terminology-based knowledge acquisition, knowledge integration, and XML-based knowledge retrieval are c...
Hideki Mima, Sophia Ananiadou, Goran Nenadic, Jun-...
IR
2000
15 years 6 months ago
Automating the Construction of Internet Portals with Machine Learning
Domain-specific internet portals are growing in popularity because they gather content from the Web and organize it for easy access, retrieval and search. For example, www.campsear...
Andrew McCallum, Kamal Nigam, Jason Rennie, Kristi...
DKE
1999
118views more  DKE 1999»
15 years 6 months ago
Designing Data Warehouses
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
Dimitri Theodoratos, Timos K. Sellis
PODS
2007
ACM
159views Database» more  PODS 2007»
16 years 6 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...