[PDF] Top 20 Implementing Semantic Query Optimization in Relational Databases

... equivalent query generated using the inductive learning method is more efficient than the original query fired by the ...original query is less efficient than the best plan of the semantically ... See full document

... the relational model to the Web gives rise to RDF. RDF databases are collections of so-called triples of knowledge, where each knowledge triple in the database is of the form (subject, predicate, object) ... See full document

... The databases are the best way of storing and viewing the data in form of ...tables. Databases are most useful in representing data in an organized ...The query optimization in ... See full document

... the query stream ...with semantic query ...for query optimization, frequently reducing query response time in up to 1 order of magnitude in join ... See full document

... between databases have been ...these databases is the necessity of a knowledge base for mapping between two ...the databases. The structure of semantic database makes the creation of a ... See full document

... the relational model not the schema, and none of these works define the RDF as graph ...preservation, query preservation, and semantics ...and query optimization does not address in the ... See full document

... the databases is a technique where we add additional non-detectable information is added into the original ...of implementing watermarking is for ownership proof and to prevent our precious data from being ... See full document

... in semantic model for each query ...a query to find query keywords and their nodes in graph ...a query “director Steven” has two query keywords, {director} and ...a query ... See full document

... the optimization of Interactive Data Analysis (IDA) ...traditional query optimization (QO) in Relational Database Management Systems (RDBMS), they further suggested that IDA tasks should be ... See full document

... huge query, Chen developed Simulated Annealing method that is based On Graph-Based ...queries. Relational operator’s algebraic structure defines the state ...solving query are represented by a ... See full document

... A BLINKS [3] is a top-k keyword search query on a graph finds the top k answers according to ranking criteria. It is a graph based approach avoids the NP- hard Steiner tree problem by giving up on completeness of ... See full document

... the query, entered by the user, is transformed into a standard relational algebra form, the optimizer searches for an optimal query execution plan ...alternative query plans increases ... See full document

... Distributed databases, where a single logical database comprises several geographically distant nodes, are now commonly deployed by businesses across their ...Distributed databases introduce delays in ... See full document

...  Unable to handle missing attribute values: In many multi-relational real-world databases, a significant portion of the data has one or more missing values. For instance, in gene localization task from KDD ... See full document

... A special subclass of research on user modeling and search personalization is based on long-term profiles rather than focusing only on the user‟s immediate history. While being 1http://www.dmoz.org noisier than ... See full document

... Imagine a user of a search engine is developed by I. Weber et el. (2006) typing a query. Then with every letter being typed, we would like an instant display of completions of the last query word which ... See full document

... There are many one- pass clustering algorithms for generating the compressed view efficiently. In our implementation, we choose the incremental data clustering framework, because of the efficiency issue. Certainly, ... See full document

... The XRANK system that is designed to handle these novel features of XML keyword search. Our experimental results show that XRANK offers both space and performance benefits when compared with existing approaches.[24] An ... See full document

... In recent years spatial, temporal, spatiotemporal databases have been introduced to deal with large and diverse datasets. 1 With the increase in the use of social media, Facebook and Twitter are alone a big ... See full document

... Many of the techniques have been proposed for mapping XML data to relational tables. Using these techniques we aims to, no loss of information while shredding. Reconstruction of original XML documents is easier ... See full document