Answers are grounded in this paper and cite their sources.
Duality is an important topic in informetrics, especially in connection with the classical informetric laws. Yet this concept is less studied in information retrieval. It deals with the unification or symmetry between queries and documents, search formulation versus indexing, and relevant versus retrieved documents. These ideas are elaborated in this note and the connection with the hypergeometric distribution is highlighted.
No takes yet. Share an insight, caveat, or question.
Egghe et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: