Query mapping techniques for XML documents: A comparative study

2015 ◽  
Author(s):  
Amjad Qtaish ◽  
Kamsuriah Ahmad
Keyword(s):  
Comparative Study ◽  
Xml Documents ◽  
Mapping Techniques ◽  
Query Mapping

scholarly journals A Comparative Study: Change Detection and Querying Dynamic XML Documents

2015 ◽  
Vol 5 (4) ◽  
pp. 840 ◽  
Author(s):  
Vijay R Sonawane ◽  
D.R. Rao
Keyword(s):  
Comparative Analysis ◽  
Comparative Study ◽  
Change Detection ◽  
Version Management ◽  
Xml Documents ◽  
Efficient Management ◽  
Control Schemes

<span>The efficient management of the dynamic XML documents is a complex area of research. The changes and size of the XML documents throughout its lifetime are limitless. Change detection is an important part of version management to identify difference between successive versions of a document. Document content is continuously evolving. Users wanted to be able to query previous versions, query changes in documents, as well as to retrieve a particular document version efficiently. In this paper we provide comprehensive comparative analysis of various control schemes for change detection and querying dynamic XML documents.</span>

Cost Modeling and Range Estimation for Top-k Retrieval in Relational Databases

2011 ◽  
pp. 295-315
Author(s):  
Anteneh Ayanso ◽  
Paulo B. Goes ◽  
Kumar Mehta
Keyword(s):  
Relational Databases ◽  
Estimation Method ◽  
Synthetic Data ◽  
Cost Modeling ◽  
Data Sets ◽  
Range Estimation ◽  
Mapping Techniques ◽  
The Cost ◽  
Query Estimation ◽  
Query Mapping

Relational databases have increasingly become the basis for a wide range of applications that require efficient methods for exploratory search and retrieval. Top-k retrieval addresses this need and involves finding a limited number of records whose attribute values are the closest to those specified in a query. One of the approaches in the recent literature is query-mapping which deals with converting top-k queries into equivalent range queries that relational database management systems (RDBMSs) normally support. This approach combines the advantages of simplicity as well as practicality by avoiding the need for modifications to the query engine, or specialized data structures and indexing techniques to handle top-k queries separately. This paper reviews existing query-mapping techniques in the literature and presents a range query estimation method based on cost modeling. Experiments on real world and synthetic data sets show that the cost-based range estimation method performs at least as well as prior methods and avoids the need to calibrate workloads on specific database contents.

scholarly journals 427 COMPOSITIONAL ULTRASTRUCTURE OF THE NUCLEUS PULPOSUS AT 1.5T MRI: A COMPARATIVE STUDY OF T2 AND T2* MAPPING TECHNIQUES

2010 ◽  
Vol 18 ◽  
pp. S190
Author(s):  
A. Dudek ◽  
F.W. Roemer ◽  
G. Welsch ◽  
M. Wimmer ◽  
S. Trattnig ◽  
...  
Keyword(s):  
Comparative Study ◽  
Nucleus Pulposus ◽  
T2 Mapping ◽  
Mapping Techniques

Author response for "Laminar distribution of cortical projection neurons to the pulvinar: A comparative study in cats and mice"

2020 ◽  
Author(s):  
Bruno Oliveira Ferreira de Souza ◽  
Éve‐Marie Frigon ◽  
Robert Tremblay‐Laliberté ◽  
Christian Casanova ◽  
Denis Boire
Keyword(s):  
Comparative Study ◽  
Author Response ◽  
Projection Neurons ◽  
Cortical Projection ◽  
Laminar Distribution
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