Knowledge Maintenance Via Word Games

We examine gamification as a mean to handle Linked Data quality problems that are difficult to solve in an automated way. In particular, we look at the use of word games as a knowledge maintenance strategy that is cost-efficient and accurate in terms of the level of granularity of the errors to be fixed. We have classified the most common quality problems encountered in our knowledge base — Entitypedia. Based on this classification, we have implemented a quality improvement methodology for knowledge maintenance that leverages on gamification. We empirically evaluated how this methodology could efficiently improve data quality in Entitypedia. The results show that gamification-enabled knowledge maintenance is a promising and affordable way to improve the quality of Linked Data. A subset of the games described in this paper can be played at Entitypedia Games web site1 1 Entitypedia Crosswords: http://games.entitypedia.org/crosswords/