Browsing (pull) has been the dominant mode of access to Web information,
aided by search engines such as Google and referral services such as Yahoo.
However, as more dynamic information becomes available, the labor intensive
nature of browsing makes it less attractive. In contrast, the push mode of
information delivery has failed due to the excessive amount of data that
easily overwhelms the users. We have been working on the concept and
implementation of Continual Queries to automate the process of creating
intelligent information delivery services that brings timely new information
of relevance to users. This talk summarizes the progress made in the CQ
project, including the related component technologies of wrapper generation
and automated object recognition in web pages. The CQ system is running as
a service available over the Internet. |