1. Managing XML and Semistructured Data Lecture 19: Compressing XML Data Prof. Dan Suciu Spring 2001
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6. How Xmill Works: Three Ideas < apache:entry > < apache:host > </ apache:host > . . . </ apache:entry > 202.239.238.16 GET / HTTP/1.0 text/html 200 … gzip Structure gzip Data =1.75MB + Compress the structure separately from the data:
7. How Xmill Works: Three Ideas < apache:entry > . . . </ apache:entry > 202.23.23.16 224.42.24.55 … gzip Structure gzip Data1 =1.33MB + GET / HTTP/1.0 GET / HTTP/1.1 … gzip Data2 + Group the data values according to their types: