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Intensional Query Processing: A Three-Step Approach

AbstractWhen processing a query in a conventional database a set of facts are usually returned for an answer. This can be different in a deductive or expert database system. Users may, as before, be...

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A design of performance-optimized control-based synchronization

AbstractA fundamental issue that any control-based synchronization should address is how to minimize both the overheads of the synchronization and the processor idling due to the variation in the...

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Two-step pruning: A distributed query optimization algorithm

AbstractThe problem of finding an optimal global plan for a tree query in a distributed database is studied under the objective of total processing time minimization. A two-step pruning algorithm based...

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An Algorithm for Incremental Nearest Neighbor Search in High-Dimensional Data...

AbstractThe SPY-TEC (Spherical Pyramid-Technique) [8] was proposed as a new indexing method for high-dimensional data spaces using a special partitioning strategy that divides a d-dimensional data...

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Extracting Object-Oriented Database Schemas from XML DTDs Using Inheritance

AbstractAs XML has become an emerging standard for information exchange on the World Wide Web, it has gained attention in database communities to extract information from XML seen as a database model....

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XML Query Processing Using Signature and DTD

AbstractHaving emerged as a standard web language, XML has become the core of e-business solution. XML is a semistructured data that is represented as graph, which is a distinctive feature compared to...

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An Enhanced Technique for k -Nearest Neighbor Queries with Non-Spatial...

AbstractIn multimedia databases, k-nearest neighbor queries are popular and frequently contain non-spatial predicates. Among the available techniques for such queries, the incremental nearest neighbor...

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RP-Filter: A Path-Based Triple Filtering Method for Efficient SPARQL Query...

AbstractWith the rapid increase of RDF data, the SPARQL query processing has received much attention. Currently, most RDF databases store RDF data in a relational table called triple table and carry...

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Join processing with threshold-based filtering in MapReduce

AbstractData analytics, in particular those involving heterogeneous data, often require join operations on datasets collected from different sources. MapReduce, one of the most popular frameworks for...

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R3F: RDF triple filtering method for efficient SPARQL query processing

AbstractWith the rapid growth in the amount of graph-structured Resource Description Framework (RDF) data, SPARQL query processing has received significant attention. The most important part of SPARQL...

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Preparation of anti-bacterial cellulose fiber via electrospinning and...

AbstractIn the study, we successfully produced electrospun cellulose fibers crosslinked with β-CD. For electrospinning, cellulose was dissolve in 1-ethyl-3-methylimidazolium acetate and DMF was added...

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