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PVLDB
2008
108views more  PVLDB 2008»
15 years 6 months ago
Sliding-window top-k queries on uncertain streams
Query processing on uncertain data streams has attracted a lot of attentions lately, due to the imprecise nature in the data generated from a variety of streaming applications, su...
Cheqing Jin, Ke Yi, Lei Chen 0002, Jeffrey Xu Yu, ...
SIGMOD
2011
ACM
199views Database» more  SIGMOD 2011»
14 years 9 months ago
Schema-as-you-go: on probabilistic tagging and querying of wide tables
The emergence of Web 2.0 has resulted in a huge amount of heterogeneous data that are contributed by a large number of users, engendering new challenges for data management and qu...
Meiyu Lu, Divyakant Agrawal, Bing Tian Dai, Anthon...
ICDE
2008
IEEE
131views Database» more  ICDE 2008»
16 years 8 months ago
Parallel Evaluation of Composite Aggregate Queries
Aggregate measures summarizing subsets of data are valuable in exploratory analysis and decision support, especially when dependent aggregations can be easily specified and compute...
Lei Chen 0003, Christopher Olston, Raghu Ramakrish...
WWW
2008
ACM
16 years 7 months ago
Querying for meta knowledge
The Semantic Web is based on accessing and reusing RDF data from many different sources, which one may assign different levels of authority and credibility. Existing Semantic Web ...
Bernhard Schueler, Sergej Sizov, Steffen Staab, Du...
CHI
2009
ACM
16 years 7 months ago
Intentions: a game for classifying search query intent
Knowing the intent of a search query allows for more intelligent ways of retrieving relevant search results. Most of the recent work on automatic detection of query intent uses su...
Edith Law, Anton Mityagin, David Maxwell Chickerin...