Semi Structured Data
data that might not be neatly Structured Data
- sparse matrix (lots of potential attributes, most instances have values for only a small number of them)
- often want to add even more attribute types
- maybe inconsistent schema - data from various uncontrolled sources
- Document Oriented
Kragen Sitaker on variations: Wiki, RDF, Ask Sam, Lotus Agenda (OSAF), XML...
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