350 search results - page 49 / 70 » An optimization framework for map-reduce queries |
96
Voted
VLDB
2005
ACM
15 years 6 months ago
2005
ACM
SQL extensions that allow queries to explicitly specify data quality requirements in terms of currency and consistency were proposed in an earlier paper. This paper develops a dat...
92
Voted
DBPL
2007
Springer
15 years 6 months ago
2007
Springer
The widespread adoption of XML has led to programming languages that support XML as a first class construct. In this paper, we present a method for analyzing and optimizing impera...
145
Voted
SIGIR
2011
ACM
14 years 3 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
110
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IDEAS
2006
IEEE
15 years 6 months ago
2006
IEEE
The paper presents a framework for publishing relational databases in textual documents such as mails, HTML pages, LATEX or BibTex files, plain texts, etc. The publication proces...
96
Voted
PODS
2010
ACM
15 years 5 months ago
2010
ACM
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...