Mohammad Harizi

• Student of Ph.D.
• PhD Student at Islamic Azad University Boroujerd Branch

The dispersion of data warehouses in the current world of information is a challenge which causes their owners or beneficiaries to have difficulty understanding and perceiving the relevant and existing data. What defines a data warehouse is metadata. Put another way, metadata plays a vital role in introducing and identifying data warehouses. This p...

ne of the subjects related to software engineering is software measurement. Software measurement itself includes different topics that estimating software size is one of them. Various methods have been proposed for estimating software size. Each studies this topic from specific approach. Since UML is a well-known notation for representing object-or...

XML queries are based on path expressions which are equal to a combination of some elements connected to each other in a tree pattern structure, called query tree pattern (QTP). The main operation in XML query processing is to find the nodes that match the given QTP in the document. A number of methods have offered for QTP matching; but the majorit...

Previous researches, in the filed of XML databases, have been done to evaluate XML queries with AND-branches. However, as far as we know, very little work has examined the efficient processing of XML queries with NOT-predicates. Also these methods have to process all of the query nodes in the document when dealing with queries with NOT-branch. In t...