Envision

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Envision
- Lucy Terry Nowel, - Robert K. France, -
Deborah Hix, - Lenwood S. Heath, and - Edward A.
Fox

• Presented By Aejaaz
• Discussed By Ravi

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Introduction

• A digital library
• Can visualize queried documents by
• Funded by NSF and VT!!

- Relevance rank - Estimated Relevance
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Goals

• Identify trends in literature
• Locate works frequently cited by others
• Identify relationships
• Discover Communities of Discourse

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Querying
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Interaction

• Three sub-windows

1. Query Window
2. Summary Window
3. Graphic View Window

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Attributes Displayed with

• Icon position along x and y axes
• Icon size
• Icon color
• The shape of the icon itself and
• The label associated with each icon

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Visualizing Different Attributes
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Another Configuration
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Future Directions

• Zoom Feature
• Displaying Attributes such as
• Hyperlinks among related Documents
• Multi-Sets

- Document Size - Number of Citations - Number of
external citations
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Pros and Cons

• Good Points
• Bad Points

• Can visualize data in disparate forms
• Very much user customizable
• Facility to Mark viewed Data

• Scalability (above 500)
• Fair amount of redundancy

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HCI Metrics
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Questions
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