Browsing Hierarchical Data with Multi-Level Dynamic Queries and Pruning
| dc.contributor.author | Kumar, Harsha | en_US |
| dc.contributor.author | Plaisant, Catherine | en_US |
| dc.contributor.author | Shneiderman, Ben | en_US |
| dc.date.accessioned | 2004-05-31T21:03:36Z | |
| dc.date.available | 2004-05-31T21:03:36Z | |
| dc.date.created | 1995-03 | en_US |
| dc.date.issued | 1998-10-15 | en_US |
| dc.description.abstract | Users often must browse hierarchies with thousands of nodes in search of those that best match their information needs. The PDQ Tree-browser (Pruning with Dynamic Queries) visualization tool was specified, designed and developed for this purpose. This tool presents trees in two tightly-coupled views, one a detailed view and the other an overview. Users can use dynamic queries, a method for rapidly filtering data, to filter nodes at each level of the tree. The dynamic query panels are user-customizable. Subtrees of unselected nodes are pruned out, leading to compact views of relevant nodes. Usability testing of the PDQ Tree-browser, done with 8 subjects, helped assess strengths and identify possible improvements. The PDQ Tree-browser was used in Network Management (600 nodes) and UniversityFinder (1100 nodes) applications. A controlled experiment, with 24 subjects, showed that pruning significantly improved performance speed and subjective user satisfaction. Future research directions are suggested. (Also cross-referenced as CAR-TR-772) (Also cross-referenced as ISR-TR-95-53) | en_US |
| dc.format.extent | 8580613 bytes | |
| dc.format.mimetype | application/postscript | |
| dc.identifier.uri | http://hdl.handle.net/1903/434 | |
| dc.language.iso | en_US | |
| dc.relation.isAvailableAt | Digital Repository at the University of Maryland | en_US |
| dc.relation.isAvailableAt | University of Maryland (College Park, Md.) | en_US |
| dc.relation.isAvailableAt | Tech Reports in Computer Science and Engineering | en_US |
| dc.relation.isAvailableAt | Computer Science Department Technical Reports | en_US |
| dc.relation.ispartofseries | UM Computer Science Department; CS-TR-3474 | en_US |
| dc.relation.ispartofseries | CAR-TR-772 | en_US |
| dc.relation.ispartofseries | ISR-TR-95-53 | en_US |
| dc.title | Browsing Hierarchical Data with Multi-Level Dynamic Queries and Pruning | en_US |
| dc.type | Technical Report | en_US |