As a result, the content handled by servers, proxies, and browsers may change considerably from what is currently observed. Furthermore, these compound documents are currently treated as opaque byte streams, but future Web infrastructure may wish to understand their internal structure to provide higher-quality service. In order to guide the design of this future Web infrastructure, we characterize compound documents currently found on the Web. Previous studies of Web content either ignored these document types altogether or did not consider their internal structure. Our study encompasses over 12,500 documents retrieved from 935 different Web sites.
Compound documents are in general much larger than current HTML documents.
For large documents, embedded objects and images make up a large part of the documents' size. For large documents, there is little difference. Structured storage 2.3.3 Component taxonomy 2.3.4 File formats 3. Data set 4. Embedded components 4.6.4 Virtual components 5.