BSBC: Towards a Succinct Data Format for XML Streams

XML data compression is an important feature in XML data exchange, particularly when the data size may cause bottlenecks or when bandwidth and energy consumption limitations require reducing the amount of the exchanged XML data. However, applications based on XML data streams also require efficient path query processing on the structure of compressed XML data streams. We present a succinct representation of XML data streams, called Bit-Stream-Based-Compression (BSBC) that fulfills these requirements and additionally provides a compression ratio that is significantly better than that of other queriable XML compression techniques, i.e. XGrind and DTD subtraction, and that of non-queriable compression techniques like gzip. Finally, we present an empirical evaluation comparing BSBC with these compression techniques and with XMill that demonstrates the benefits of BSBC.