The Missing Science of Knowledge Curation: Improving Incentives for Large-scale Knowledge Curation.

Dictionaries, encyclopedias, knowledge graphs, annotated corpora, library classification systems and world maps are all examples of human-curated knowledge resources that have been highly valuable to science as well as amortized across multiple large-scale systems in practice. Many of these were started and built even before a crowdsourcing research community existed. While the last decade has seen unprecedented growth in research and practice in building crowdsourcing systems to do increasingly complex tasks at scale, many of these resources are still woefully incompletelacking coverage in languages and subject matter domains. Moreover, many knowledge resources needed to fill other semantic gaps for artificial intelligence systems simply don't exist or arent being built. Why I argue that we don't have the right incentives, and that in order to improve the incentives, we have some fundamental scientific questions to answer. While building a large knowledge resource, we have little more than intuitions when it comes to estimating the reusability, maintainability, and long-term value of the effort. These make it difficult to fund or manage such projects, often requiring herculean personalities or fortunate businesses. Building or expanding a resource is often not seen as "sexy," which results in lack of resources to answer those questions in any principled manner. These problems begin to outline a new science of curation, making progress on which could help improve the discussion around and funding for building sorely needed knowledge resources.