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SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
15 years 10 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
SIGMOD
2004
ACM
151views Database» more  SIGMOD 2004»
15 years 10 months ago
Highly-Available, Fault-Tolerant, Parallel Dataflows
We present a technique that masks failures in a cluster to provide high availability and fault-tolerance for long-running, parallelized dataflows. We can use these dataflows to im...
Mehul A. Shah, Joseph M. Hellerstein, Eric A. Brew...
SIGMOD
2004
ACM
162views Database» more  SIGMOD 2004»
15 years 10 months ago
Graph Indexing: A Frequent Structure-based Approach
Graph has become increasingly important in modelling complicated structures and schemaless data such as proteins, chemical compounds, and XML documents. Given a graph query, it is...
Xifeng Yan, Philip S. Yu, Jiawei Han
SIGMOD
2004
ACM
149views Database» more  SIGMOD 2004»
15 years 10 months ago
Incremental Maintenance of XML Structural Indexes
Increasing popularity of XML in recent years has generated much interest in query processing over graph-structured data. To support efficient evaluation of path expressions, many ...
Ke Yi, Hao He, Ioana Stanoi, Jun Yang 0001
91
Voted
SIGMOD
2004
ACM
164views Database» more  SIGMOD 2004»
15 years 10 months ago
Dynamic Plan Migration for Continuous Queries Over Data Streams
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
Yali Zhu, Elke A. Rundensteiner, George T. Heinema...