The visual query language CQL for transitive and relational computation

Järvelin, Kalervo; Niemi, Timo; Salminen, Airi

doi:10.1016/s0169-023x(00)00021-5

Search citation statements

Order By: Relevance

Paper Sections

Select...

Data Abstraction Models1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2002

2015

Publication Types

Select...

Other2

Book2

Article2

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 6 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In these query languages, a hierarchical data abstraction model is constructed to group database themes that are loosely related together. This allows a vague query using a certain keyword to discover lateral results through searching the hierarchical data abstraction model [2,3]. A limitation of these approaches is the maintenance of the hierarchical data abstraction model.…”

Section: Data Abstraction Modelsmentioning

confidence: 99%

A framework for a dynamic interactive 3D GIS for non-expert users

Walker

Pham

Maeder

2003

Proceedings of the 1st International Conference on Computer Graphics and Interactive Techniques in Australasia and South East A

View full text Add to dashboard Cite

Many substantial geographic information systems (GIS) have been designed for use by expert users. As a result, nonexpert users often find them difficult to use. This paper presents a framework to facilitate the use of such GIS by non-expert users. The framework achieves this by allowing the creation of vague visual queries which use data abstraction and relevance feedback to obtain a final result. The data abstraction model is dynamically updated to improve future query performance.

show abstract

Section: Data Abstraction Modelsmentioning

confidence: 99%