1 / 16

LifeLines:Visualizing Personal Histories

LifeLines:Visualizing Personal Histories. Plaisant, Milash, Rose, Widoff, Shneiderman. Presented by Girish Kumar and Rajiv Gandhi. Outline. Overview + Detail LifeLines Example -- Dept. of Juvenile Justice Related Work Conclusion and Critique. Favorite Sentence.

cornelius
Télécharger la présentation

LifeLines:Visualizing Personal Histories

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LifeLines:Visualizing Personal Histories Plaisant, Milash, Rose, Widoff, Shneiderman Presented by Girish Kumar and Rajiv Gandhi

  2. Outline • Overview + Detail • LifeLines • Example -- Dept. of Juvenile Justice • Related Work • Conclusion and Critique

  3. Favorite Sentence “An intuitive approach to visualizing histories is to use graphical time scales.”

  4. Overview + Detail • Provides multiple views • overview for orientation • detailed view for further work • e.g.- virtual space on the desktop

  5. LifeLines • Maps histories on graphical time scale • Overview screen displays multiple facets of data • Stories or aspects are lines • Periods correspond to changes of size or color along the line • Discrete events are marked by icons • Set of buttons gives access to general information

  6. An Example - Department of Juvenile Justice (DJJ)

  7. Key Features • Interrelationships between periods or events on the lines can be highlighted • Line thickness indicates the severity of offence • Color indicates the depth of penetration in the system

  8. Benefits of LifeLines • Users are less likely to miss information • Facilitates the spotting of anomalies and trends • Streamlines access to details • Tailorable to various applications

  9. Issues • Representing large amount of information at overview level • Efficient space utilization • Integration with data entry techniques

  10. Browsing Hierarchical Data With Multi-Level Dynamic Queries And Pruning Kumar, Plaisant, Shneiderman

  11. Key Ideas • Browse large hierarchies and view it at different levels • Dynamic Queries used to filter nodes at each level of the tree • Pruning of sub-trees of uninteresting nodes to get more compact views

  12. PDQ Tree Browser • Tree structure is visualized in two tightly-coupled views - Overview and Detailed • User selectable dynamic query panel • Tree structure changes only when the current lowest level of the tree is changed • Pruning is done to eliminate non-matching subtrees

  13. An Example - The University Finder

  14. Key Features • Helps locate interesting parts of large trees • Tightly coupled overview and detailed views • Easy to use interface

  15. Limitations • Interface fine tuned for tree of depth 5 • Manual selection and pruning not supported • Doesn’t support all boolean queries • Does not utilize available space efficiently • Change in layout not animated • Doesn’t support searching upwards in the tree

  16. Conclusions and Critique • Time is an effective variable to display personal histories • Overview + Detail • maintain overall context • navigate data details • Overview may become cluttered with large amounts of data • Need for better space utilization techniques

More Related