Environmental issues and risk have become central in socioeconomic research and policy planning in order to ensure sustainable development. As environmental risk is difficult to assess and measure, different indexes have been developed to evaluate specific aspects of such risk. Environmental risk typically involves problems generated by the consumption of energy (fuels), water shortages, disast...

This paper aims to select the evaluation indexes of high-level Wushu team based on the literature, questionnaires, AHP and mathematical statistics so as to build a Performance Management Evaluation Index System. The research findings are as follows: high-level Wushu team Performance Management Evaluation Index System consists of four first-class indexes including the sports team training manage...

A first principal component combines several indicators so as to maximize their internal consistency for measuring a construct. First principal components are extracted here from Swiss Economic Institute and World Bank datasets containing yearly societal indicators for China. These indicators are input to population-weighted regressions without recourse to survey sampling or probabilistic infer...

There has been a s ubstantial amount of research on high performance inverted index because most web and search engines use an inverted index to execute queries. Documents are normally stored as lists of words, but inverted indexes invert this by storing for each word the list of documents that the word appears in, hence the name “inverted index”. This paper presents the crucial research findin...

For the multimedia boom to amount to much, it must become easier for producers of such systems to find, manage, and organize large amounts of source materials in a variety of formats. Video materials are, in many ways, the most demanding component format in multimedia systems, being in effect multimedia presentations all on their own. Video clips combine moving images with sound, and may incorp...

We describe a distributed index structure, in which data is distributed among multiple sites and indexes to the data are replicated over multiple sites. This permits good scalability as storage and accessing load are distributed over the sites and each site with an index replica has fast local access to the index structure, making remote requests at most for data at the leaves of the index tree...

The suffix array is the key to efficient solutions for myriads of string processing problems in different applications domains, like data compression, data mining, or Bioinformatics. With the rapid growth of available data, suffix array construction algorithms had to be adapted to advanced computational models such as external memory and distributed computing. In this article, we present five s...

The problem of answering XML queries using indexes is to find efficient methods for accelerating the XML query with pre-designed index structures over the XML database. This problem received increasing interests and have been lucubrated in recent years. Regular path expression is the core of the XML query languages e.g., XPath and XQuery. Most of the state-of-the-art XML indexes, therefore, ham...