https://www.selleckchem.com/pr....oducts/bromodeoxyuri
Approximate Nearest Neighbor Search in high dimensional space is essential in DB and IR. Recently, NSG provides attractive theoretical analysis and achieves state-of-the-art performance. However, we find there are several limitations with NSG. In the theoretical aspect, NSG has no theoretical guarantee on searching for neighbors of not-in-database queries. In application, NSG is too sparse and thus has an inferior search performance. In addition, NSG's indexing complexity is also too high. To address above problems, we pr