title=A survey of search engines for '''XML documentsretrieval''', | work = ACM SIGIR Workshop onor XML and Information Retrieval}}</ref>, is the content-based retrieval of documents structured with [[XML]] (eXtensible Markup Language). As such it is used for computing [[Relevance (information retrieval)|relevance]] of XML documents.<ref>{{Cite web|url=ftp://ftp.tm.informatik.uni-frankfurt.de/pub/papers/ir/An%20Architecture%20for%20XML%20Information%20Retrieval%20in%20a%20Peer-to-Peer%20Environment_2007.pdf|title=An Architecture for XML Information Retrieval in a Peer-to-Peer Environment|last=Winter|first=Judith|author2=Drobnik, Oswald |date=November 9, 2007|publisher=ACM|accessdate=2009-02-10}}</ref>▼
'''XML retrieval''', or XML Information Retrieval,<ref>{{cite journal |
author=Luk, R.W.P.| coauthors= H.V. Leong, T.S. Dillon, Alvin T. S. Chan, W. B. Croft and J. Allan | year=2002| title=A survey in indexing and searching XML documents | journal = Journal of the American Society for Information Science and Technology | volume = 53 | issue =6 | pages = 415–437| doi = 10.1002/asi.10056}}</ref>
<ref>{{cite web | url=https://www.research.ibm.com/haifa/sigir00-xml/final-papers/Luk/XMLSUR.htm |
author=Luk, R.W.P.| coauthors= Alvin Chan, T.S. Dillon and H.V. Leong | year=2000|
▲title=A survey of search engines for XML documents | work = ACM SIGIR Workshop on XML and Information Retrieval}}</ref> is the content-based retrieval of documents structured with [[XML]] (eXtensible Markup Language). As such it is used for computing [[Relevance (information retrieval)|relevance]] of XML documents.<ref>{{Cite web|url=ftp://ftp.tm.informatik.uni-frankfurt.de/pub/papers/ir/An%20Architecture%20for%20XML%20Information%20Retrieval%20in%20a%20Peer-to-Peer%20Environment_2007.pdf|title=An Architecture for XML Information Retrieval in a Peer-to-Peer Environment|last=Winter|first=Judith|author2=Drobnik, Oswald |date=November 9, 2007|publisher=ACM|accessdate=2009-02-10}}</ref>
