Social Knowledge Collection

Social content collection sites on the Web allow communities of interest to create and share information at unprecedented scale. As a point of reference, MediaWiki (the wiki that powers Wikipedia) has millions of installations that allow non-­‐programmers to contribute content. However, because the content in these sites has very little structure the information cannot be easily aggregated to answer simple questions. In recent years several approaches have emerged for social knowledge collection, allowing a community of contributors to BLOCKIN BLOCKIN structure BLOCKIN BLOCKIN content BLOCKIN BLOCKIN so BLOCKIN BLOCKIN that BLOCKIN BLOCKIN information BLOCKIN BLOCKIN can BLOCKIN BLOCKIN be BLOCKIN BLOCKIN aggregated BLOCKIN BLOCKIN to BLOCKIN BLOCKIN answer reasonably interesting albeit simple factual queries. This chapter gives an overview of existing social knowledge collection research, ranging from intelligent interfaces for collection of semi-­‐structured repositories of common knowledge, semantic wikis for organizing and structuring information, and collaborative ontology editors to create consensus BLOCKIN BLOCKIN taxonomies BLOCKIN BLOCKIN with BLOCKIN BLOCKIN classes BLOCKIN BLOCKIN and BLOCKIN BLOCKIN properties. BLOCKIN BLOCKIN BLOCKIN BLOCKIN The BLOCKIN BLOCKIN chapter BLOCKIN BLOCKIN ends with a reflection on open research problems in this area. 2