Tree visualization with tree-maps: 2-d space-filling approach
ACM Transactions on Graphics (TOG)
Structured graph format: XML metadata for describing Web site structure
WWW7 Proceedings of the seventh international conference on World Wide Web 7
Interface and data architecture for query preview in networked information systems
ACM Transactions on Information Systems (TOIS)
AVI '00 Proceedings of the working conference on Advanced visual interfaces
Multidimensional Database Technology
Computer
Query, analysis, and visualization of hierarchically structured data using Polaris
Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining
A Filter Co-ordination for Exploring Multi-Classification Sitemaps
CMV '03 Proceedings of the conference on Coordinated and Multiple Views In Exploratory Visualization
Exploring website log data with coordinated dimension hierarchies and network pivots
International Journal of Computational Science and Engineering
Graphical querying of multidimensional databases
ADBIS'07 Proceedings of the 11th East European conference on Advances in databases and information systems
Building a display of missing information in a data sieve
Proceedings of the ACM 14th international workshop on Data Warehousing and OLAP
Exploring web logs with coordinated OLAP dimension hierarchies
DNIS'05 Proceedings of the 4th international conference on Databases in Networked Information Systems
Exploring OLAP data with parallel dimension views
DNIS'11 Proceedings of the 7th international conference on Databases in Networked Information Systems
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Multi-dimensional data occurs in many domains while a wide variety of text based and visual interfaces for querying such data exists. But many of these interfaces are not applicable to OLAP, as they do not support use of dimension hierarchies for selection and aggregation. We introduce an interface technique which supports visual querying of OLAP data, that has been implemented in the SGViewer tool. It is based on a data graph rather than a data cube representation of the data. Our interface presents each dimension hierarchy in a zoomable panel which supports selection and aggregation at multiple levels. Users explore data and query it by making selections in several dimension views. Three view coordinations are identified; progressive, global and result only. Our main contribution, the progressive view coordination provides better support for query refinement than existing interfaces, by helping users decide the next query step with intermediate result overviews, and by helping users change a previous selection decision with retained selection context views. Our interface technique is demonstrated with a web log dataset of visits organised into time, download, visitor and referrer address dimensions.