LensBar – Visualization for Browsing and Filtering Large Lists of Data

Toshiyuki Masui

Proceedings. IEEE Symposium on Information Visualization, 1998

元智資工所 系統實驗室 楊錫謦

2000/10/20

Outline Introduction Strategies Detailed Description Examples Compared to Donald’s scrollbar

Introduction Various visualization and information

retrieval techniques have been proposed. In some systems, visualization and filtering

are integrated. Most existing systems suffer from:

applicable only to special application domains Special interaction techniques are usually

required.

Introduction(Cont.) They propose a interface tool called LensBar for fi

ltering and visualizing large data lists. an extension to a conventional scroll window

Strategies Browsing the list using a precisely-

controllable slider and scroll window. Controlling the amount of data to be

displayed by keyword filtering and zooming. Visualizing the distribution of filtered data in

the background of the slider.

Detailed Description Integrated browsing and querying

a slider & an extra text input area Entries that match the specified pattern are

displayed in the scroll window. Corresponding positions in the slider background

are highlighted to show the locations. Slider knob moves only on the highlighted portion.

Detailed Description(Cont.) Dynamic approximate string matching Zooming interface

A DOI value is dynamically assigned to each entry. Entries whose DOI value is bigger than the

zooming level are selected for display. Precise control of the slider

Clicking the mouse on the slider knob allows the user to move the knob directly to any place on the bar.

Example 1 - dictionary

Example 1(Cont.)

Example 2 – message browser

Example 3 – program browser

Example 4 – hierarchical menu

Compared to Donald’s scrollbar