306 search results - page 52 / 62 » Spark: top-k keyword query in relational databases |
PODS
2008
ACM
14 years 7 months ago
2008
ACM
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
ICAIL
1999
ACM
13 years 12 months ago
1999
ACM
More and more legal information is available in electronic form, but traditional retrieval mechanisms are insufficient to answer questions and legal problems of most users. In the...
KDD
2012
ACM
11 years 10 months ago
2012
ACM
The problem of efficiently finding the best match for a query in a given set with respect to the Euclidean distance or the cosine similarity has been extensively studied. However...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Because of the high volume and unpredictable arrival rate, stream processing systems may not always be able to keep up with the input data streams-- resulting in buffer overflow a...
KDD
2004
ACM
14 years 8 months ago
2004
ACM
Automatically segmenting unstructured text strings into structured records is necessary for importing the information contained in legacy sources and text collections into a data ...