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IC
2009
13 years 6 months ago
Vague Content and Structure (VCAS) Retrieval for XML Electronic Healthcare Records (EHR)
Retrieving information from EHRs that are represented as XML documents is an important aspect for the users of this domain. Such retrieving may lead to some vague queries. There i...
Baydaa Al-Hamadani, Raad Alwan, Joan Lu, Jim Yip
CIKM
2007
Springer
14 years 2 months ago
Effective keyword search for valuable lcas over xml documents
In this paper, we study the problem of effective keyword search over XML documents. We begin by introducing the notion of Valuable Lowest Common Ancestor (VLCA) to accurately and ...
Guoliang Li, Jianhua Feng, Jianyong Wang, Lizhu Zh...
VLDB
2002
ACM
133views Database» more  VLDB 2002»
14 years 9 months ago
Tree pattern query minimization
: Purpose ? Tree pattern is at the core of XML queries. The tree patterns in XML queries typically contain redundancies, especially when broad integrity constraints (ICs) are prese...
Sihem Amer-Yahia, SungRan Cho, Laks V. S. Lakshman...
WEBDB
2010
Springer
167views Database» more  WEBDB 2010»
14 years 1 months ago
Tree patterns with Full Text Search
Tree patterns with full text search form the core of both XQuery Full Text and the NEXI query language. On such queries, users expect a relevance-ranked list of XML elements as an...
Maria-Hendrike Peetz, Maarten Marx
EDBT
2004
ACM
155views Database» more  EDBT 2004»
14 years 8 months ago
Processing Unions of Conjunctive Queries with Negation under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
Alan Nash, Bertram Ludäscher