Oracle autotask results of space advisor
This auto task identifies segments that have space available for reclamation and makes recommendations on how to defragment those segments. 

You can use DBMS_SPACE.ASA_RECOMMENDATIONS procedure to see the results.

Or you can see the same results in the Oracle Enterprise Manager.

For example:
Go to Advisor Central and Select the Advisory Type as shown in the following screenshot(OEM 11g).