“…An extended study with detailed theoretical and experimental analyses has been recently proposed in [70]. -Quantifying the similarity and identifying the relations (i.e., inclusion, intersection, disjointness, and equality) among XML element content values, particularly among RSS items [60], developed toward RSS merging [59]. -Developing a filter-differencing framework for SOAP multicasting, identifying the common pattern and differences between SOAP messages, modeled as XML trees, to multicast similar messages together [71,72].…”