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» Learning system to introduce GIS to civil engineers
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GIS
1999
ACM
14 years 3 months ago
Specifying Analysis Patterns for Geographic Databases on the Basis of a Conceptual Framework
Frameworks and Patterns are important instruments that enable the reuse of successful software solutions in recurrent problems. Geographic information systems, on the other hand, ...
Jugurta Lisboa Filho, Cirano Iochpe
ICDE
2007
IEEE
254views Database» more  ICDE 2007»
15 years 10 days ago
Odysseus: a High-Performance ORDBMS Tightly-Coupled with Spatial Database Features
We have earlier proposed the tight-coupling architecture for adding new data types into the DBMS engine. In this paper, we introduce the Odysseus ORDBMS and present its tightly-co...
Kyu-Young Whang, Jae-Gil Lee, Min-Soo Kim 0002, Mi...
WWW
2001
ACM
14 years 11 months ago
Learning search engine specific query transformations for question answering
We introduce a method for learning query transformations that improves the ability to retrieve answers to questions from an information retrieval system. During the training stage...
Eugene Agichtein, Steve Lawrence, Luis Gravano
GIS
2009
ACM
14 years 3 months ago
Data structures and intersection algorithms for 3D spatial data types
Apart from visualization tasks, three-dimensional (3D) data management features are not or only hardly available in current spatial database systems and Geographic Information Sys...
Tao Chen, Markus Schneider
EDM
2010
125views Data Mining» more  EDM 2010»
14 years 13 days ago
Where in the World? Demographic Patterns in Access Data
As learning environments become increasingly available online, the fine-grained records of user activities can be captured and analyzed (generally called webmetrics) to better unde...
Mimi Recker, Beijie Xu, Sherry Hsi, Christine Garr...