Expert Finding and Metadata Generation with

Games with a Purpose

Peter DulačkaJakub Šimko

Problem

• Games with a purpose are generating data• Expert data and wrong data cannot be

distinguished and they are being treated the same way (trashed and ignored)

• Hypothesis: we can distinguish experts in games with a purpose and utilize them for more accurate / faster metadata discovery

Game and Purpose

• Validation/creation of generic music metadata(non-expert and expert players)

• Creation of non-trivial song relationships not easily discoverable by tag similarity(expert players only)

Expert Finding Solution

• Music Information Retrieval• Internet radio (custom or existing)• Discovering player’s expertise in specific music

domain (primary objective)

• Means– Local library scanning / listening history (LastFM)– Fact questioning - quiz minigames– Crowdsouring