Calculating similarity for multidimensional data is one of the key problems that must be addressed in order to promote the development of data clustering algorithms. In this study, we developed and tested a new similarity calculation index to improve the accuracy of multidimensional data clustering. First, the information divergence (ID) and generalized gradient angle (GGZ) were explored in det...

Multi-dimensional poverty index is an international measure of acute poverty covering over 104 countries. As everyone knows that Poverty is measured as a single dimensional index such as income. But income alone misses a lot because India is growing fast in economic perspective but health, education and living standard not improved yet. It is the fact that India’s per capita income lies in one ...

The most common approach to improve performance for databases is through indexing. Mapping based approach is an easy to implement paradigm for indexing multidimensional data. It does not need complicated structures or algorithms, but some transformations (mapping functions) to convert multidimensional data to one dimensional data. Then the converted data can be indexed using a robust and effici...

Deleting data from a database system in a forensic secure environment and in a high performant way is a complex challenge. Due to redundant copies and additional information stored about data items, it is not appropriate to delete only data items themselves. Additional challenges arise when using multidimensional index structures. This is because information of data items are used to index the ...

Indexing high-dimensional data spaces is an emerging research domain. It gains increasing importance by the need to support modern applications by powerful search tools. In the so-called non-standard applications of database systems such as multimedia, CAD, molecular biology, medical imaging, time series processing and many others, similarity search in large data sets is required as a basic fun...

In this paper, for a given service quality gap problems of emergency WeChat platform, we discuss the general method for determining the trait of emergency WeChat platform, as well as quality framework, evaluation system of emergency WeChat service. For the determination of the trait of emergency WeChat platform, using SPSS mathematical software to draw an initial shape, through the mathematical...

Semantic-based approaches are relatively new technologies. Some of these technologies are supported by specifications of W3 Consortium, i.e. RDF, SPARQL and so on. There are many areas where semantic data can be utilized, e.g. social networks, annotation of protein sequences etc. From the physical database design point of view, several index data structures are utilized to handle this data. In ...