Drill Clouds
From CISTI-ICIST LAB WIKI
Principal Investigator: Glen Newton, glen.newton@nrc-cnrc.gc.ca
Contents |
Search Refinement using Drill Clouds in Ungava
For example:
- Using the default search form, the user searches for fulltext: cell :
- The user now clicks on the Keyword cloud link, getting:
- The user now clicks on the chromatin keyword cloud entry, which adds keyword: chromatin to the original search query, resulting in a new set of results:
Note that this refined search results in 52 hits, down from the original 3461 hits.
- Now when the user clicks on the Keyword cloud link, they get the keyword drill cloud for the new results, but with the keyword (tag) chromatin excluded from the cloud, removing its dominating influence on the cloud (as all articles would have chromatin as a keyword). Here is the resulting keyword drill cloud:
If the chromatin were not excluded, its dominance would reduce the other clouds entries to small entries, reducing the discriminating power of the cloud, and its overall usefullness. Here is what the cloud would look like in our example:
- The user can continue to iteratively refine their search using the drill cloud from each search.
Note that users are not constrained to using the same type of metadata tag cload for refinment, i.e. they can follow a keword drill cloud refined search with one from one of the other available drill clouds.
Continuing our example which produced this results list: <br
Selecting the Author cloud produces the following drill cloud:
- Clicking on the author tag Ausió, Juan produces the following results:
Note how after only a small number of drill cloud iterations involving only mouse clicks (not typing in forms), the original result set was reduced from the original 3461 hits to 5 hits
