Introduction

1.2 Research Hypothesis And Research Methodology

This thesis is based on the following hypotheses:

• 1.

  The existing XML compression techniques can be improved to construct a new schema independent XML compressor with a higher compression ratio.

• 2.

  The redundancy in the XML documents significantly affects the size of those documents and can be reduced to more than half of the original file size.

• 3.

  The compressed XML document can be retrieved according to vague queries. Vague queries are those queries which do not follow the semantic rules of current query languages. They occur when the exact matching user’s query does not retrieve the required information either because of the lack of experience in writing a query or the absence of the document’s schema.

• 4.

  The necessity of retrieving information from more than one XML documents without the need to specify an exact relative document.