"Our project (titled xstream)
concentrated on evaluation of XPath over XML streams.
This research area contains multiple challenges resulting
from both the richness of the language and the
requirement of having only a single pass over the data.
We modified and extended one of the known algorithms,
TurboXPath [4], a tree-based IBM algorithm. We also
provide extensive comparative analysis between
TurboXPath and XSQ [5], currently the most advanced of
finite automata (FA)-based algorithms."