European astronomers have investigated a galaxy cluster designated CIZA J2242.8+5301, dubbed the Sausage cluster. The ...

In this paper, we present a new cluster validity index (CVI) called H F able to find the optimal number of clusters present in a given data. The HF index is based on the membership partition. It can ...

However, these values are often unknown in advance and difficult to estimate. In this article, a new cluster validity index for multiple sets of endmembers is developed. The proposed index is used to ...

The ordered non-clustered Columnstore index significantly improved query performance by over 63%, optimizing workloads reliant on analytical processing.” Azure is a critical component of SQL Server.