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» Querying Linguistic Trees
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137
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EMNLP
2010
14 years 10 months ago
Learning Recurrent Event Queries for Web Search
Recurrent event queries (REQ) constitute a special class of search queries occurring at regular, predictable time intervals. The freshness of documents ranked for such queries is ...
Ruiqiang Zhang, Yuki Konda, Anlei Dong, Pranam Kol...
219
Voted
ICDE
2009
IEEE
205views Database» more  ICDE 2009»
16 years 2 months ago
Top-k Exploration of Query Candidates for Efficient Keyword Search on Graph-Shaped (RDF) Data
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
Thanh Tran, Haofen Wang, Sebastian Rudolph, Philip...
199
Voted
ICDE
2003
IEEE
161views Database» more  ICDE 2003»
16 years 2 months ago
Structural Join Order Selection for XML Query Optimization
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
174
Voted
SIGMOD
2009
ACM
182views Database» more  SIGMOD 2009»
16 years 26 days ago
3-HOP: a high-compression indexing scheme for reachability query
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
Ruoming Jin, Yang Xiang, Ning Ruan, David Fuhry
127
Voted
EDBT
2004
ACM
313views Database» more  EDBT 2004»
16 years 23 days ago
XQzip: Querying Compressed XML Using Structural Indexing
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
James Cheng, Wilfred Ng