Introduction a More and more xml data is created Duplicate structures(tags, paths.) Data inflation: data in XML is much larger than raw data Compression: storage and data transfer General-purpose compressor( e.g. gzip) Characteristics of Xml data not utilized Ungueriable3 Introduction ▪ More and more XML data is created • Duplicate structures (tags, paths …) • Data inflation: data in XML is much larger than raw data • Compression: storage and data transfer ▪ General-purpose compressor (e.g. gzip) • Characteristics of XML data not utilized • Unqueriable