THESIS PRESENTATION

1. Tina Liang 2013.5.31 THESIS PRESENTATION

2. Facilitating Discourse Analysis with Interactive Visualization The DAViewer: a visualization system for discourse analysis www.vision-computing.org

3. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

4. Introduction A discourse parser is a natural language processing system which can represent the organization of a document based on a rhetorical structure. Typical discourse tree structure: (a) node-link representation of the hierarchical binary tree and (b) indented text format www.vision-computing.org

5. Introduction DAViewer, an interactive visualization tool for computational linguists to visually explore, compare, evaluate, and annotate automatically generated discourse structures with the aim of improving the underlying parsing algorithms • Contributions： • Design requirements for discourse analysis visualization • An iteratively refined implementation of DAViewer with interactions and visualizations • Two new tree representations • An informal formative study in a real work setting with a domain expert www.vision-computing.org

6. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

7. Methodology Initial implementation with core functionality Refined prototype Problem identification and quick prototyping System release and field test www.vision-computing.org

8. 1 2 3 Errors, distributions and statistical information Article views and textual contexts Discourse tree representation Requirements www.vision-computing.org

9. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

10. Discourse Tree Representations Dendrogram view Icicle plot view Expanded views www.vision-computing.org

11. Discourse Tree Representations Horizontal compact view Vertical compact view Compact views www.vision-computing.org

12. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

13. The DAViewer Interface B D E A C www.vision-computing.org

14. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

15. Introduction 1 User-centered Design 2 Formative Study Discourse Tree Representations 3 5 Future Work The DAViewer Interface 4 6 Outline www.vision-computing.org

16. Future Work • To distribute the system to the computational linguistics community • To empower the querying capa-bilities with boolean operations • New interaction techniques, including synchronized node collapsing, zooming, and panning of trees in the same row. • To add functions such as live monitoring of the parsing progress and on-the-fly modifications of parser codes in a unified interface www.vision-computing.org

17. www.themegallery.com Thank You !