The Action will review, design, develop, implement and evaluate techniques in all the phases of keyword-based search: a) user keyword input; b) result computation; and c) result output. These aspects will be addressed in the Action within three vertical thematic Working Groups (WG1 to WG3) and a horizontal Working Group (WG4):
- WG1: Representation of structured data sources
How to extract a set of metadata describing data sources and to index them for their retrieval - WG2: Keyword search
How to select the relevant sources for a query and match keywords with the data structures - WG3: User interaction and keyword query interpretation
How to express constraints, to disambiguate the meaning of the query to exploit feedback - WG4: Research integration, showcases, benchmarks, and evaluations
How to integrate the constituent functionalities into a search engine and how to evaluate it
Four tasks addressed by all the WGs
- Critical review of the existing emerging techniques
- Definition of open/closed issues in the field and definition of a roadmap for achieving the KEYSTONE outcomes
- Coordination of research activities
- Dissemination of the outcomes