Idf was introduced as "time period specificity" by Karen Spärck Jones inside of a 1972 paper. Although it has labored effectively as being a heuristic, its theoretical foundations are already troublesome for a minimum of a few decades afterward, with numerous researchers wanting to locate details theoretic justifications for it.[seven] https://-supplychainfinance62840.digitollblog.com/37864211/supply-chain-finance-transparency-tools-no-further-a-mystery