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CIKM
2009
Springer
15 years 4 months ago
Workload-aware trie indices for XML
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
Yuqing Wu, Sofia Brenes, Hyungdae Yi
ICLP
2010
Springer
15 years 1 months ago
Implementation Alternatives for Bottom-Up Evaluation
Abstract. Bottom-up evaluation is a central part of query evaluation / program execution in deductive databases. It is used after a source code optimization like magic sets or SLDm...
Stefan Brass
ICDE
2007
IEEE
155views Database» more  ICDE 2007»
15 years 4 months ago
Query-Aware Sampling for Data Streams
Data Stream Management Systems are useful when large volumes of data need to be processed in real time. Examples include monitoring network traffic, monitoring financial transacti...
Theodore Johnson, S. Muthukrishnan, Vladislav Shka...
DEXA
2005
Springer
109views Database» more  DEXA 2005»
15 years 3 months ago
Web Query Expansion by WordNet
In this paper, we address a novel method of Web query expansion by using WordNet and TSN. WordNet is an online lexical dictionary which describes word relationships in three dimens...
Zhiguo Gong, Chan Wa Cheang, Leong Hou U
SIGMOD
1996
ACM
132views Database» more  SIGMOD 1996»
15 years 1 months ago
Cost-Based Optimization for Magic: Algebra and Implementation
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
Praveen Seshadri, Joseph M. Hellerstein, Hamid Pir...