This work relates to the solution of real multimedia documents indexing tasks. New approach to high-performance speech/music segmentation system creation is considered. This approach uses wavelet analysis and it is based not only on new distinctive features (entropy and dynamism) investigation, but it also takes into account information concerning language. Different experiments have shown the ...

In this paper, we designed efficient indexing structure for XML documents so that each basic XPath axis step is supported. The indexing structure is built on top of the B-tree which is available in practically all commercial relational database systems. For most of the basic axis steps, we are able to derive theoretical worst case execution time bounds. We also perform experimental evaluation t...

Color is a feature of the great majority of content-based image retrieval systems. However the robustness, effectiveness, and efficiency of its use in image indexing are still open issues. This paper provides a comprehensive survey of the methods for color image indexing and retrieval described in the literature. In particular, image preprocessing, the features used to represent color informati...

Shrinking budgets, reduction in personnel and increasing performance expectations are facts of today's Government environment. The intelligence community has seen these trends stress its ability to collect, manage and disseminate information in an efficient, timely manner. The need to respond to rapidly changing statements of operational interest only exacerbates the problem. It is no longer su...

The analytics in online performance monitoring systems have often been limited due to the query of large scale multidimensional data. In this paper, we introduce a faster approach using bit-sliced index (BSI). Our study covers grouping and preference top-k queries with BSI, algorithms design, time complexity evaluation, comparison on real-time production system. research work extended BSI cover...

A typical content-based information retrieval (CBIR) system, e.g., an image or video retrieval system, includes three major aspects: feature extraction, high dimensional indexing and system design [1]. Among the three aspects, high dimensional indexing is important for speed performance; system design is critical for appearance performance; and feature extraction is the key to accuracy performa...

Relational database management systems manages the tables with predefined indexes. In RDBMS indexes are created on the basis of attribute values. The Imine indexing scheme is used to index item sets in relational databases. The index creation is performed with out any constraints. IMine provides a complete representation of the original database. The Imine indexing scheme reduces the input/outp...

In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but current self-indexing techniques are not adapted to such data structure and provide suboptimal performance. In this paper, we present SkipBlock, a self-indexing model for block-based inverted lists. Based on a cost mod...

OBJECTIVE This paper presents the evaluation of two MeSH indexing systems for French and English on a parallel corpus. MATERIAL AND METHODS We describe two automatic MeSH in-dexing systems - MTI for English, and MAIF for French. The French version of the evaluation resources has been manually indexed with MeSH keyword/qualifier pairs. This professional indexing is used as our gold standard in...