Harvesting Deep Web Data through Produser Involvement

Acquiring the data from the deep Web is a complex process, which requires understanding of Website navigation issues, data extraction, and integration techniques. Currently existing solutions to automate it are not ready to cover the whole deep Web and require skills and knowledge to be applied in practice. However, several systems were created, which approach the problem by involving end users who are able to bring the data from the deep Web to the surface while creating solutions for their own information needs. The authors study these systems in the chapter from the end user perspective, investigating their interfaces, languages that they expose to end users, and the platforms that accompany the systems to involve end users and allow them to share the results of their work.