A counter purchase is a type of countertrade in which two parties agree to buy goods from and sell goods to each other under separate sales contracts.
The article highlights five rare kidney diseases, including IgA Nephropathy, APOL1-Mediated Kidney Disease, Polycystic Kidney ...
“Rail based systems do not compete, they complement (each other). In the larger public transport ecosystem, while working ...
Abstract: The User-Item missing rating data are a kind of uncertain data in e-commerce website, but in recommendation system these missing ratings are the important information when implementing ...